BasicDataSource (Apache Tomcat 8.0.53 API Documentation)

java.lang.Object
- org.apache.tomcat.dbcp.dbcp2.BasicDataSource

All Implemented Interfaces:

java.lang.AutoCloseable, java.sql.Wrapper, javax.management.MBeanRegistration, javax.sql.CommonDataSource, javax.sql.DataSource, BasicDataSourceMXBean
```
public class BasicDataSource
extends java.lang.Object
implements javax.sql.DataSource, BasicDataSourceMXBean, javax.management.MBeanRegistration, java.lang.AutoCloseable
```
Basic implementation of javax.sql.DataSource that is configured via JavaBeans properties. This is not the only way to combine the commons-dbcp2 and commons-pool2 packages, but provides a "one stop shopping" solution for basic requirements.

Since:

2.0

Constructor Summary

Constructors
Constructor and Description

BasicDataSource()

Constructors
Constructor and Description
`BasicDataSource()`

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addConnectionProperty(java.lang.String name, java.lang.String value)` Adds a custom connection property to the set that will be passed to our JDBC driver.
`void`	`close()` Closes and releases all idle connections that are currently stored in the connection pool associated with this data source.
`protected ConnectionFactory`	`createConnectionFactory()` Creates a JDBC connection factory for this datasource.
`protected void`	`createConnectionPool(PoolableConnectionFactory factory)` Creates a connection pool for this datasource.
`protected javax.sql.DataSource`	`createDataSource()` Creates (if necessary) and return the internal data source we are using to manage our connections.
`protected javax.sql.DataSource`	`createDataSourceInstance()` Creates the actual data source instance.
`protected GenericObjectPool<PoolableConnection>`	`createObjectPool(PoolableConnectionFactory factory, GenericObjectPoolConfig<PoolableConnection> poolConfig, AbandonedConfig abandonedConfig)` Creates an object pool used to provide pooling support for `JDBC connections`.
`protected PoolableConnectionFactory`	`createPoolableConnectionFactory(ConnectionFactory driverConnectionFactory)` Creates the PoolableConnectionFactory and attaches it to the connection pool.
`java.io.PrintWriter`	`getAbandonedLogWriter()` Gets the print writer used by this configuration to log information on abandoned objects.
`boolean`	`getAbandonedUsageTracking()` If the connection pool implements `UsageTracking`, should the connection pool record a stack trace every time a method is called on a pooled connection and retain the most recent stack trace to aid debugging of abandoned connections?
`boolean`	`getCacheState()` Returns the state caching flag.
`java.sql.Connection`	`getConnection()` Creates (if necessary) and return a connection to the database.
`java.sql.Connection`	`getConnection(java.lang.String user, java.lang.String pass)` BasicDataSource does NOT support this method.
`java.util.List<java.lang.String>`	`getConnectionInitSqls()` Returns the list of SQL statements executed when a physical connection is first created.
`java.lang.String[]`	`getConnectionInitSqlsAsArray()` Provides the same data as `getConnectionInitSqls()` but in an array so it is accessible via JMX.
`protected GenericObjectPool<PoolableConnection>`	`getConnectionPool()`
`java.lang.Boolean`	`getDefaultAutoCommit()` Returns the default auto-commit property.
`java.lang.String`	`getDefaultCatalog()` Returns the default catalog.
`java.lang.Integer`	`getDefaultQueryTimeout()` Gets the default query timeout that will be used for `Statement`s created from this connection.
`java.lang.Boolean`	`getDefaultReadOnly()` Returns the default readOnly property.
`int`	`getDefaultTransactionIsolation()` Returns the default transaction isolation state of returned connections.
`java.util.Set<java.lang.String>`	`getDisconnectionSqlCodes()` Returns the set of SQL_STATE codes considered to signal fatal conditions.
`java.lang.String[]`	`getDisconnectionSqlCodesAsArray()` Provides the same data as `getDisconnectionSqlCodes()` but in an array so it is accessible via JMX.
`java.sql.Driver`	`getDriver()` Returns the JDBC Driver that has been configured for use by this pool.
`java.lang.ClassLoader`	`getDriverClassLoader()` Returns the class loader specified for loading the JDBC driver.
`java.lang.String`	`getDriverClassName()` Returns the JDBC driver class name.
`boolean`	`getEnableAutoCommitOnReturn()` Returns the value of the flag that controls whether or not connections being returned to the pool will be checked and configured with `Connection.setAutoCommit(true)` if the auto commit setting is `false` when the connection is returned.
`java.lang.String`	`getEvictionPolicyClassName()` Gets the EvictionPolicy implementation in use with this connection pool.
`boolean`	`getFastFailValidation()` True means that validation will fail immediately for connections that have previously thrown SQLExceptions with SQL_STATE indicating fatal disconnection errors.
`int`	`getInitialSize()` Returns the initial size of the connection pool.
`java.lang.String`	`getJmxName()` Returns the JMX name that has been requested for this DataSource.
`boolean`	`getLifo()` Returns the LIFO property.
`boolean`	`getLogAbandoned()` Flag to log stack traces for application code which abandoned a Statement or Connection.
`boolean`	`getLogExpiredConnections()` When `getMaxConnLifetimeMillis()` is set to limit connection lifetime, this property determines whether or not log messages are generated when the pool closes connections due to maximum lifetime exceeded.
`int`	`getLoginTimeout()` BasicDataSource does NOT support this method.
`java.io.PrintWriter`	`getLogWriter()` Returns the log writer being used by this data source.
`long`	`getMaxConnLifetimeMillis()` Returns the maximum permitted lifetime of a connection in milliseconds.
`int`	`getMaxIdle()` Returns the maximum number of connections that can remain idle in the pool.
`int`	`getMaxOpenPreparedStatements()` Gets the value of the `maxOpenPreparedStatements` property.
`int`	`getMaxTotal()` Returns the maximum number of active connections that can be allocated at the same time.
`long`	`getMaxWaitMillis()` Returns the maximum number of milliseconds that the pool will wait for a connection to be returned before throwing an exception.
`long`	`getMinEvictableIdleTimeMillis()` Returns the `minEvictableIdleTimeMillis` property.
`int`	`getMinIdle()` Returns the minimum number of idle connections in the pool.
`int`	`getNumActive()` [Read Only] The current number of active connections that have been allocated from this data source.
`int`	`getNumIdle()` [Read Only] The current number of idle connections that are waiting to be allocated from this data source.
`int`	`getNumTestsPerEvictionRun()` Returns the value of the `numTestsPerEvictionRun` property.
`java.util.logging.Logger`	`getParentLogger()`
`java.lang.String`	`getPassword()` Returns the password passed to the JDBC driver to establish connections.
`protected javax.management.ObjectName`	`getRegisteredJmxName()`
`boolean`	`getRemoveAbandonedOnBorrow()` Flag to remove abandoned connections if they exceed the removeAbandonedTimeout when borrowObject is invoked.
`boolean`	`getRemoveAbandonedOnMaintenance()` Flag to remove abandoned connections if they exceed the removeAbandonedTimeout during pool maintenance.
`int`	`getRemoveAbandonedTimeout()` Timeout in seconds before an abandoned connection can be removed.
`boolean`	`getRollbackOnReturn()` Gets the current value of the flag that controls whether a connection will be rolled back when it is returned to the pool if auto commit is not enabled and the connection is not read only.
`long`	`getSoftMinEvictableIdleTimeMillis()` Returns the minimum amount of time a connection may sit idle in the pool before it is eligible for eviction by the idle object evictor, with the extra condition that at least "minIdle" connections remain in the pool.
`boolean`	`getTestOnBorrow()` Returns the `testOnBorrow` property.
`boolean`	`getTestOnCreate()` Returns the `testOnCreate` property.
`boolean`	`getTestOnReturn()` Returns the value of the `testOnReturn` property.
`boolean`	`getTestWhileIdle()` Returns the value of the `testWhileIdle` property.
`long`	`getTimeBetweenEvictionRunsMillis()` Returns the value of the `timeBetweenEvictionRunsMillis` property.
`java.lang.String`	`getUrl()` Returns the JDBC connection `url` property.
`java.lang.String`	`getUsername()` Returns the JDBC connection `userName` property.
`java.lang.String`	`getValidationQuery()` Returns the validation query used to validate connections before returning them.
`int`	`getValidationQueryTimeout()` Returns the validation query timeout.
`void`	`invalidateConnection(java.sql.Connection connection)` Manually invalidates a connection, effectively requesting the pool to try to close it, remove it from the pool and reclaim pool capacity.
`boolean`	`isAccessToUnderlyingConnectionAllowed()` Returns the value of the accessToUnderlyingConnectionAllowed property.
`boolean`	`isClosed()` If true, this data source is closed and no more connections can be retrieved from this datasource.
`boolean`	`isPoolPreparedStatements()` Returns true if we are pooling statements.
`boolean`	`isWrapperFor(java.lang.Class<?> iface)`
`protected void`	`log(java.lang.String message)`
`void`	`postDeregister()`
`void`	`postRegister(java.lang.Boolean registrationDone)`
`void`	`preDeregister()`
`javax.management.ObjectName`	`preRegister(javax.management.MBeanServer server, javax.management.ObjectName objectName)`
`void`	`removeConnectionProperty(java.lang.String name)` Removes a custom connection property.
`void`	`setAbandonedLogWriter(java.io.PrintWriter logWriter)` Sets the print writer to be used by this configuration to log information on abandoned objects.
`void`	`setAbandonedUsageTracking(boolean usageTracking)` If the connection pool implements `UsageTracking`, configure whether the connection pool should record a stack trace every time a method is called on a pooled connection and retain the most recent stack trace to aid debugging of abandoned connections.
`void`	`setAccessToUnderlyingConnectionAllowed(boolean allow)` Sets the value of the accessToUnderlyingConnectionAllowed property.
`void`	`setCacheState(boolean cacheState)` Sets the state caching flag.
`void`	`setConnectionInitSqls(java.util.Collection<java.lang.String> connectionInitSqls)` Sets the list of SQL statements to be executed when a physical connection is first created.
`void`	`setConnectionProperties(java.lang.String connectionProperties)` Sets the connection properties passed to driver.connect(...).
`void`	`setDefaultAutoCommit(java.lang.Boolean defaultAutoCommit)` Sets default auto-commit state of connections returned by this datasource.
`void`	`setDefaultCatalog(java.lang.String defaultCatalog)` Sets the default catalog.
`void`	`setDefaultQueryTimeout(java.lang.Integer defaultQueryTimeoutSeconds)` Sets the default query timeout that will be used for `Statement`s created from this connection.
`void`	`setDefaultReadOnly(java.lang.Boolean defaultReadOnly)` Sets defaultReadonly property.
`void`	`setDefaultTransactionIsolation(int defaultTransactionIsolation)` Sets the default transaction isolation state for returned connections.
`void`	`setDisconnectionSqlCodes(java.util.Collection<java.lang.String> disconnectionSqlCodes)` Sets the SQL_STATE codes considered to signal fatal conditions.
`void`	`setDriver(java.sql.Driver driver)` Sets the JDBC Driver instance to use for this pool.
`void`	`setDriverClassLoader(java.lang.ClassLoader driverClassLoader)` Sets the class loader to be used to load the JDBC driver.
`void`	`setDriverClassName(java.lang.String driverClassName)` Sets the JDBC driver class name.
`void`	`setEnableAutoCommitOnReturn(boolean enableAutoCommitOnReturn)` Sets the value of the flag that controls whether or not connections being returned to the pool will be checked and configured with `Connection.setAutoCommit(true)` if the auto commit setting is `false` when the connection is returned.
`void`	`setEvictionPolicyClassName(java.lang.String evictionPolicyClassName)` Sets the EvictionPolicy implementation to use with this connection pool.
`void`	`setFastFailValidation(boolean fastFailValidation)`
`void`	`setInitialSize(int initialSize)` Sets the initial size of the connection pool.
`void`	`setJmxName(java.lang.String jmxName)` Sets the JMX name that has been requested for this DataSource.
`void`	`setLifo(boolean lifo)` Sets the LIFO property.
`void`	`setLogAbandoned(boolean logAbandoned)`
`void`	`setLogExpiredConnections(boolean logExpiredConnections)` When `getMaxConnLifetimeMillis()` is set to limit connection lifetime, this property determines whether or not log messages are generated when the pool closes connections due to maximum lifetime exceeded.
`void`	`setLoginTimeout(int loginTimeout)` BasicDataSource does NOT support this method.
`void`	`setLogWriter(java.io.PrintWriter logWriter)` Sets the log writer being used by this data source.
`void`	`setMaxConnLifetimeMillis(long maxConnLifetimeMillis)` Sets the maximum permitted lifetime of a connection in milliseconds.
`void`	`setMaxIdle(int maxIdle)` Sets the maximum number of connections that can remain idle in the pool.
`void`	`setMaxOpenPreparedStatements(int maxOpenStatements)` Sets the value of the `maxOpenPreparedStatements` property.
`void`	`setMaxTotal(int maxTotal)` Sets the maximum total number of idle and borrows connections that can be active at the same time.
`void`	`setMaxWaitMillis(long maxWaitMillis)` Sets the MaxWaitMillis property.
`void`	`setMinEvictableIdleTimeMillis(long minEvictableIdleTimeMillis)` Sets the `minEvictableIdleTimeMillis` property.
`void`	`setMinIdle(int minIdle)` Sets the minimum number of idle connections in the pool.
`void`	`setNumTestsPerEvictionRun(int numTestsPerEvictionRun)` Sets the value of the `numTestsPerEvictionRun` property.
`void`	`setPassword(java.lang.String password)` Sets the `password`.
`void`	`setPoolPreparedStatements(boolean poolingStatements)` Sets whether to pool statements or not.
`void`	`setRemoveAbandonedOnBorrow(boolean removeAbandonedOnBorrow)`
`void`	`setRemoveAbandonedOnMaintenance(boolean removeAbandonedOnMaintenance)`
`void`	`setRemoveAbandonedTimeout(int removeAbandonedTimeout)` Sets the timeout in seconds before an abandoned connection can be removed.
`void`	`setRollbackOnReturn(boolean rollbackOnReturn)` Sets the flag that controls if a connection will be rolled back when it is returned to the pool if auto commit is not enabled and the connection is not read only.
`void`	`setSoftMinEvictableIdleTimeMillis(long softMinEvictableIdleTimeMillis)` Sets the minimum amount of time a connection may sit idle in the pool before it is eligible for eviction by the idle object evictor, with the extra condition that at least "minIdle" connections remain in the pool.
`void`	`setTestOnBorrow(boolean testOnBorrow)` Sets the `testOnBorrow` property.
`void`	`setTestOnCreate(boolean testOnCreate)` Sets the `testOnCreate` property.
`void`	`setTestOnReturn(boolean testOnReturn)` Sets the `testOnReturn` property.
`void`	`setTestWhileIdle(boolean testWhileIdle)` Sets the `testWhileIdle` property.
`void`	`setTimeBetweenEvictionRunsMillis(long timeBetweenEvictionRunsMillis)` Sets the `timeBetweenEvictionRunsMillis` property.
`void`	`setUrl(java.lang.String url)` Sets the `url`.
`void`	`setUsername(java.lang.String userName)` Sets the `userName`.
`void`	`setValidationQuery(java.lang.String validationQuery)` Sets the `validationQuery`.
`void`	`setValidationQueryTimeout(int validationQueryTimeoutSeconds)` Sets the validation query timeout, the amount of time, in seconds, that connection validation will wait for a response from the database when executing a validation query.
`protected void`	`startPoolMaintenance()` Starts the connection pool maintenance task, if configured.
`<T> T`	`unwrap(java.lang.Class<T> iface)`
`protected static void`	`validateConnectionFactory(PoolableConnectionFactory connectionFactory)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - BasicDataSource
```
public BasicDataSource()
```
- Method Detail
  - getDefaultAutoCommit
```
public java.lang.Boolean getDefaultAutoCommit()
```
    Returns the default auto-commit property.
    
    Specified by:
    
    getDefaultAutoCommit in interface BasicDataSourceMXBean
    
    Returns:
    true if default auto-commit is enabled
  - setDefaultAutoCommit
```
public void setDefaultAutoCommit(java.lang.Boolean defaultAutoCommit)
```
    Sets default auto-commit state of connections returned by this datasource.
    
    Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.
    
    Parameters:
    defaultAutoCommit - default auto-commit value
  - getDefaultReadOnly
```
public java.lang.Boolean getDefaultReadOnly()
```
    Returns the default readOnly property.
    
    Specified by:
    
    getDefaultReadOnly in interface BasicDataSourceMXBean
    
    Returns:
    true if connections are readOnly by default
  - setDefaultReadOnly
```
public void setDefaultReadOnly(java.lang.Boolean defaultReadOnly)
```
    Sets defaultReadonly property.
    
    Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.
    
    Parameters:
    defaultReadOnly - default read-only value
  - getDefaultTransactionIsolation
```
public int getDefaultTransactionIsolation()
```
    Returns the default transaction isolation state of returned connections.
    
    Specified by:
    
    getDefaultTransactionIsolation in interface BasicDataSourceMXBean
    
    Returns:
    the default value for transaction isolation state
    See Also:
    Connection.getTransactionIsolation()
  - setDefaultTransactionIsolation
```
public void setDefaultTransactionIsolation(int defaultTransactionIsolation)
```
    Sets the default transaction isolation state for returned connections.
    
    Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.
    
    Parameters:
    defaultTransactionIsolation - the default transaction isolation state
    See Also:
    Connection.getTransactionIsolation()
  - getDefaultQueryTimeout
```
public java.lang.Integer getDefaultQueryTimeout()
```
    Gets the default query timeout that will be used for Statements created from this connection. null means that the driver default will be used.
    
    Returns:
    The default query timeout in seconds.
  - setDefaultQueryTimeout
```
public void setDefaultQueryTimeout(java.lang.Integer defaultQueryTimeoutSeconds)
```
    Sets the default query timeout that will be used for Statements created from this connection. null means that the driver default will be used.
    
    Parameters:
    defaultQueryTimeoutSeconds - The default query timeout in seconds.
  - getDefaultCatalog
```
public java.lang.String getDefaultCatalog()
```
    Returns the default catalog.
    
    Specified by:
    
    getDefaultCatalog in interface BasicDataSourceMXBean
    
    Returns:
    the default catalog
  - setDefaultCatalog
```
public void setDefaultCatalog(java.lang.String defaultCatalog)
```
    Sets the default catalog.
    
    Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.
    
    Parameters:
    defaultCatalog - the default catalog
  - getCacheState
```
public boolean getCacheState()
```
    Returns the state caching flag.
    
    Specified by:
    
    getCacheState in interface BasicDataSourceMXBean
    
    Returns:
    the state caching flag
  - setCacheState
```
public void setCacheState(boolean cacheState)
```
    Sets the state caching flag.
    
    Parameters:
    cacheState - The new value for the state caching flag
  - getDriver
```
public java.sql.Driver getDriver()
```
    Returns the JDBC Driver that has been configured for use by this pool.
    Note: This getter only returns the last value set by a call to setDriver(Driver). It does not return any driver instance that may have been created from the value set via setDriverClassName(String).
    
    Returns:
    the JDBC Driver that has been configured for use by this pool
  - setDriver
```
public void setDriver(java.sql.Driver driver)
```
    Sets the JDBC Driver instance to use for this pool.
    Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.
    
    Parameters:
    driver - The JDBC Driver instance to use for this pool.
  - getDriverClassName
```
public java.lang.String getDriverClassName()
```
    Returns the JDBC driver class name.
    Note: This getter only returns the last value set by a call to setDriverClassName(String). It does not return the class name of any driver that may have been set via setDriver(Driver).
    
    Specified by:
    
    getDriverClassName in interface BasicDataSourceMXBean
    
    Returns:
    the JDBC driver class name
  - setDriverClassName
```
public void setDriverClassName(java.lang.String driverClassName)
```
    Sets the JDBC driver class name.
    
    Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.
    
    Parameters:
    driverClassName - the class name of the JDBC driver
  - getDriverClassLoader
```
public java.lang.ClassLoader getDriverClassLoader()
```
    Returns the class loader specified for loading the JDBC driver. Returns null if no class loader has been explicitly specified.
    Note: This getter only returns the last value set by a call to setDriverClassLoader(ClassLoader). It does not return the class loader of any driver that may have been set via setDriver(Driver).
    
    Returns:
    The class loader specified for loading the JDBC driver.
  - setDriverClassLoader
```
public void setDriverClassLoader(java.lang.ClassLoader driverClassLoader)
```
    Sets the class loader to be used to load the JDBC driver.
    
    Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.
    
    Parameters:
    driverClassLoader - the class loader with which to load the JDBC driver
  - getLifo
```
public boolean getLifo()
```
    Returns the LIFO property.
    
    Specified by:
    
    getLifo in interface BasicDataSourceMXBean
    
    Returns:
    true if connection pool behaves as a LIFO queue.
  - setLifo
```
public void setLifo(boolean lifo)
```
    Sets the LIFO property. True means the pool behaves as a LIFO queue; false means FIFO.
    
    Parameters:
    lifo - the new value for the LIFO property
  - getMaxTotal
```
public int getMaxTotal()
```
    Returns the maximum number of active connections that can be allocated at the same time.
    
    A negative number means that there is no limit.
    
    Specified by:
    
    getMaxTotal in interface BasicDataSourceMXBean
    
    Returns:
    the maximum number of active connections
  - setMaxTotal
```
public void setMaxTotal(int maxTotal)
```
    Sets the maximum total number of idle and borrows connections that can be active at the same time. Use a negative value for no limit.
    
    Parameters:
    maxTotal - the new value for maxTotal
    See Also:
    getMaxTotal()
  - getMaxIdle
```
public int getMaxIdle()
```
    Returns the maximum number of connections that can remain idle in the pool. Excess idle connections are destroyed on return to the pool.
    
    A negative value indicates that there is no limit
    
    Specified by:
    
    getMaxIdle in interface BasicDataSourceMXBean
    
    Returns:
    the maximum number of idle connections
  - setMaxIdle
```
public void setMaxIdle(int maxIdle)
```
    Sets the maximum number of connections that can remain idle in the pool. Excess idle connections are destroyed on return to the pool.
    
    Parameters:
    maxIdle - the new value for maxIdle
    See Also:
    getMaxIdle()
  - getMinIdle
```
public int getMinIdle()
```
    Returns the minimum number of idle connections in the pool. The pool attempts to ensure that minIdle connections are available when the idle object evictor runs. The value of this property has no effect unless timeBetweenEvictionRunsMillis has a positive value.
    
    Specified by:
    
    getMinIdle in interface BasicDataSourceMXBean
    
    Returns:
    the minimum number of idle connections
    See Also:
    GenericObjectPool.getMinIdle()
  - setMinIdle
```
public void setMinIdle(int minIdle)
```
    Sets the minimum number of idle connections in the pool. The pool attempts to ensure that minIdle connections are available when the idle object evictor runs. The value of this property has no effect unless timeBetweenEvictionRunsMillis has a positive value.
    
    Parameters:
    minIdle - the new value for minIdle
    See Also:
    GenericObjectPool.setMinIdle(int)
  - getInitialSize
```
public int getInitialSize()
```
    Returns the initial size of the connection pool.
    
    Specified by:
    
    getInitialSize in interface BasicDataSourceMXBean
    
    Returns:
    the number of connections created when the pool is initialized
  - setInitialSize
```
public void setInitialSize(int initialSize)
```
    Sets the initial size of the connection pool.
    
    Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.
    
    Parameters:
    initialSize - the number of connections created when the pool is initialized
  - getMaxWaitMillis
```
public long getMaxWaitMillis()
```
    Returns the maximum number of milliseconds that the pool will wait for a connection to be returned before throwing an exception. A value less than or equal to zero means the pool is set to wait indefinitely.
    
    Specified by:
    
    getMaxWaitMillis in interface BasicDataSourceMXBean
    
    Returns:
    the maxWaitMillis property value
  - setMaxWaitMillis
```
public void setMaxWaitMillis(long maxWaitMillis)
```
    Sets the MaxWaitMillis property. Use -1 to make the pool wait indefinitely.
    
    Parameters:
    maxWaitMillis - the new value for MaxWaitMillis
    See Also:
    getMaxWaitMillis()
  - isPoolPreparedStatements
```
public boolean isPoolPreparedStatements()
```
    Returns true if we are pooling statements.
    
    Specified by:
    
    isPoolPreparedStatements in interface BasicDataSourceMXBean
    
    Returns:
    true if prepared and callable statements are pooled
  - setPoolPreparedStatements
```
public void setPoolPreparedStatements(boolean poolingStatements)
```
    Sets whether to pool statements or not.
    
    Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.
    
    Parameters:
    poolingStatements - pooling on or off
  - getMaxOpenPreparedStatements
```
public int getMaxOpenPreparedStatements()
```
    Gets the value of the maxOpenPreparedStatements property.
    
    Specified by:
    
    getMaxOpenPreparedStatements in interface BasicDataSourceMXBean
    
    Returns:
    the maximum number of open statements
  - setMaxOpenPreparedStatements
```
public void setMaxOpenPreparedStatements(int maxOpenStatements)
```
    Sets the value of the maxOpenPreparedStatements property.
    
    Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.
    
    Parameters:
    maxOpenStatements - the new maximum number of prepared statements
  - getTestOnCreate
```
public boolean getTestOnCreate()
```
    Returns the testOnCreate property.
    
    Specified by:
    
    getTestOnCreate in interface BasicDataSourceMXBean
    
    Returns:
    true if objects are validated immediately after they are created by the pool
    See Also:
    testOnCreate
  - setTestOnCreate
```
public void setTestOnCreate(boolean testOnCreate)
```
    Sets the testOnCreate property. This property determines whether or not the pool will validate objects immediately after they are created by the pool
    
    Parameters:
    testOnCreate - new value for testOnCreate property
  - getTestOnBorrow
```
public boolean getTestOnBorrow()
```
    Returns the testOnBorrow property.
    
    Specified by:
    
    getTestOnBorrow in interface BasicDataSourceMXBean
    
    Returns:
    true if objects are validated before being borrowed from the pool
    See Also:
    testOnBorrow
  - setTestOnBorrow
```
public void setTestOnBorrow(boolean testOnBorrow)
```
    Sets the testOnBorrow property. This property determines whether or not the pool will validate objects before they are borrowed from the pool.
    
    Parameters:
    testOnBorrow - new value for testOnBorrow property
  - getTestOnReturn
```
public boolean getTestOnReturn()
```
    Returns the value of the testOnReturn property.
    
    Returns:
    true if objects are validated before being returned to the pool
    See Also:
    testOnReturn
  - setTestOnReturn
```
public void setTestOnReturn(boolean testOnReturn)
```
    Sets the testOnReturn property. This property determines whether or not the pool will validate objects before they are returned to the pool.
    
    Parameters:
    testOnReturn - new value for testOnReturn property
  - getTimeBetweenEvictionRunsMillis
```
public long getTimeBetweenEvictionRunsMillis()
```
    Returns the value of the timeBetweenEvictionRunsMillis property.
    
    Specified by:
    
    getTimeBetweenEvictionRunsMillis in interface BasicDataSourceMXBean
    
    Returns:
    the time (in milliseconds) between evictor runs
    See Also:
    timeBetweenEvictionRunsMillis
  - setTimeBetweenEvictionRunsMillis
```
public void setTimeBetweenEvictionRunsMillis(long timeBetweenEvictionRunsMillis)
```
    Sets the timeBetweenEvictionRunsMillis property.
    
    Parameters:
    timeBetweenEvictionRunsMillis - the new time between evictor runs
    See Also:
    timeBetweenEvictionRunsMillis
  - getNumTestsPerEvictionRun
```
public int getNumTestsPerEvictionRun()
```
    Returns the value of the numTestsPerEvictionRun property.
    
    Specified by:
    
    getNumTestsPerEvictionRun in interface BasicDataSourceMXBean
    
    Returns:
    the number of objects to examine during idle object evictor runs
    See Also:
    numTestsPerEvictionRun
  - setNumTestsPerEvictionRun
```
public void setNumTestsPerEvictionRun(int numTestsPerEvictionRun)
```
    Sets the value of the numTestsPerEvictionRun property.
    
    Parameters:
    numTestsPerEvictionRun - the new numTestsPerEvictionRun value
    See Also:
    numTestsPerEvictionRun
  - getMinEvictableIdleTimeMillis
```
public long getMinEvictableIdleTimeMillis()
```
    Returns the minEvictableIdleTimeMillis property.
    
    Specified by:
    
    getMinEvictableIdleTimeMillis in interface BasicDataSourceMXBean
    
    Returns:
    the value of the minEvictableIdleTimeMillis property
    See Also:
    minEvictableIdleTimeMillis
  - setMinEvictableIdleTimeMillis
```
public void setMinEvictableIdleTimeMillis(long minEvictableIdleTimeMillis)
```
    Sets the minEvictableIdleTimeMillis property.
    
    Parameters:
    minEvictableIdleTimeMillis - the minimum amount of time an object may sit idle in the pool
    See Also:
    minEvictableIdleTimeMillis
  - setSoftMinEvictableIdleTimeMillis
```
public void setSoftMinEvictableIdleTimeMillis(long softMinEvictableIdleTimeMillis)
```
    Sets the minimum amount of time a connection may sit idle in the pool before it is eligible for eviction by the idle object evictor, with the extra condition that at least "minIdle" connections remain in the pool.
    
    Parameters:
    softMinEvictableIdleTimeMillis - minimum amount of time a connection may sit idle in the pool before it is eligible for eviction, assuming there are minIdle idle connections in the pool.
    See Also:
    getSoftMinEvictableIdleTimeMillis()
  - getSoftMinEvictableIdleTimeMillis
```
public long getSoftMinEvictableIdleTimeMillis()
```
    Returns the minimum amount of time a connection may sit idle in the pool before it is eligible for eviction by the idle object evictor, with the extra condition that at least "minIdle" connections remain in the pool.
    
    When minEvictableIdleTimeMillis is set to a positive value, minEvictableIdleTimeMillis is examined first by the idle connection evictor - i.e. when idle connections are visited by the evictor, idle time is first compared against minEvictableIdleTimeMillis (without considering the number of idle connections in the pool) and then against softMinEvictableIdleTimeMillis, including the minIdle, constraint.
    
    Specified by:
    
    getSoftMinEvictableIdleTimeMillis in interface BasicDataSourceMXBean
    
    Returns:
    minimum amount of time a connection may sit idle in the pool before it is eligible for eviction, assuming there are minIdle idle connections in the pool
  - getEvictionPolicyClassName
```
public java.lang.String getEvictionPolicyClassName()
```
    Gets the EvictionPolicy implementation in use with this connection pool.
    
    Returns:
    The EvictionPolicy implementation in use with this connection pool.
  - setEvictionPolicyClassName
```
public void setEvictionPolicyClassName(java.lang.String evictionPolicyClassName)
```
    Sets the EvictionPolicy implementation to use with this connection pool.
    
    Parameters:
    evictionPolicyClassName - The fully qualified class name of the EvictionPolicy implementation
  - getTestWhileIdle
```
public boolean getTestWhileIdle()
```
    Returns the value of the testWhileIdle property.
    
    Specified by:
    
    getTestWhileIdle in interface BasicDataSourceMXBean
    
    Returns:
    true if objects examined by the idle object evictor are validated
    See Also:
    testWhileIdle
  - setTestWhileIdle
```
public void setTestWhileIdle(boolean testWhileIdle)
```
    Sets the testWhileIdle property. This property determines whether or not the idle object evictor will validate connections.
    
    Parameters:
    testWhileIdle - new value for testWhileIdle property
  - getNumActive
```
public int getNumActive()
```
    [Read Only] The current number of active connections that have been allocated from this data source.
    
    Specified by:
    
    getNumActive in interface BasicDataSourceMXBean
    
    Returns:
    the current number of active connections
  - getNumIdle
```
public int getNumIdle()
```
    [Read Only] The current number of idle connections that are waiting to be allocated from this data source.
    
    Specified by:
    
    getNumIdle in interface BasicDataSourceMXBean
    
    Returns:
    the current number of idle connections
  - getPassword
```
public java.lang.String getPassword()
```
    Returns the password passed to the JDBC driver to establish connections.
    
    Specified by:
    
    getPassword in interface BasicDataSourceMXBean
    
    Returns:
    the connection password
  - setPassword
```
public void setPassword(java.lang.String password)
```
    Sets the password.
    
    Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.
    
    Parameters:
    password - new value for the password
  - getUrl
```
public java.lang.String getUrl()
```
    Returns the JDBC connection url property.
    
    Specified by:
    
    getUrl in interface BasicDataSourceMXBean
    
    Returns:
    the url passed to the JDBC driver to establish connections
  - setUrl
```
public void setUrl(java.lang.String url)
```
    Sets the url.
    
    Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.
    
    Parameters:
    url - the new value for the JDBC connection url
  - getUsername
```
public java.lang.String getUsername()
```
    Returns the JDBC connection userName property.
    
    Specified by:
    
    getUsername in interface BasicDataSourceMXBean
    
    Returns:
    the userName passed to the JDBC driver to establish connections
  - setUsername
```
public void setUsername(java.lang.String userName)
```
    Sets the userName.
    
    Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.
    
    Parameters:
    userName - the new value for the JDBC connection user name
  - getValidationQuery
```
public java.lang.String getValidationQuery()
```
    Returns the validation query used to validate connections before returning them.
    
    Specified by:
    
    getValidationQuery in interface BasicDataSourceMXBean
    
    Returns:
    the SQL validation query
    See Also:
    validationQuery
  - setValidationQuery
```
public void setValidationQuery(java.lang.String validationQuery)
```
    Sets the validationQuery.
    
    Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.
    
    Parameters:
    validationQuery - the new value for the validation query
  - getValidationQueryTimeout
```
public int getValidationQueryTimeout()
```
    Returns the validation query timeout.
    
    Specified by:
    
    getValidationQueryTimeout in interface BasicDataSourceMXBean
    
    Returns:
    the timeout in seconds before connection validation queries fail.
  - setValidationQueryTimeout
```
public void setValidationQueryTimeout(int validationQueryTimeoutSeconds)
```
    Sets the validation query timeout, the amount of time, in seconds, that connection validation will wait for a response from the database when executing a validation query. Use a value less than or equal to 0 for no timeout.
    Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.
    
    Parameters:
    validationQueryTimeoutSeconds - new validation query timeout value in seconds
  - getConnectionInitSqls
```
public java.util.List<java.lang.String> getConnectionInitSqls()
```
    Returns the list of SQL statements executed when a physical connection is first created. Returns an empty list if there are no initialization statements configured.
    
    Returns:
    initialization SQL statements
  - getConnectionInitSqlsAsArray
```
public java.lang.String[] getConnectionInitSqlsAsArray()
```
    Provides the same data as getConnectionInitSqls() but in an array so it is accessible via JMX.
    
    Specified by:
    
    getConnectionInitSqlsAsArray in interface BasicDataSourceMXBean
    
    Returns:
    getConnectionInitSqlsAsArray()
  - setConnectionInitSqls
```
public void setConnectionInitSqls(java.util.Collection<java.lang.String> connectionInitSqls)
```
    Sets the list of SQL statements to be executed when a physical connection is first created.
    Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.
    
    Parameters:
    connectionInitSqls - Collection of SQL statements to execute on connection creation
  - isAccessToUnderlyingConnectionAllowed
```
public boolean isAccessToUnderlyingConnectionAllowed()
```
    Returns the value of the accessToUnderlyingConnectionAllowed property.
    
    Specified by:
    
    isAccessToUnderlyingConnectionAllowed in interface BasicDataSourceMXBean
    
    Returns:
    true if access to the underlying connection is allowed, false otherwise.
  - setAccessToUnderlyingConnectionAllowed
```
public void setAccessToUnderlyingConnectionAllowed(boolean allow)
```
    Sets the value of the accessToUnderlyingConnectionAllowed property. It controls if the PoolGuard allows access to the underlying connection. (Default: false)
    
    Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.
    
    Parameters:
    allow - Access to the underlying connection is granted when true.
  - getMaxConnLifetimeMillis
```
public long getMaxConnLifetimeMillis()
```
    Returns the maximum permitted lifetime of a connection in milliseconds. A value of zero or less indicates an infinite lifetime.
    
    Specified by:
    
    getMaxConnLifetimeMillis in interface BasicDataSourceMXBean
    
    Returns:
    getMaxConnLifetimeMillis()
  - getLogExpiredConnections
```
public boolean getLogExpiredConnections()
```
    When getMaxConnLifetimeMillis() is set to limit connection lifetime, this property determines whether or not log messages are generated when the pool closes connections due to maximum lifetime exceeded.
    
    Specified by:
    
    getLogExpiredConnections in interface BasicDataSourceMXBean
    
    Returns:
    getLogExpiredConnections()
    Since:
    
    2.1
  - setMaxConnLifetimeMillis
```
public void setMaxConnLifetimeMillis(long maxConnLifetimeMillis)
```
    Sets the maximum permitted lifetime of a connection in milliseconds. A value of zero or less indicates an infinite lifetime.
    
    Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.
    
    Parameters:
    maxConnLifetimeMillis - The maximum permitted lifetime of a connection in milliseconds.
  - setLogExpiredConnections
```
public void setLogExpiredConnections(boolean logExpiredConnections)
```
    When getMaxConnLifetimeMillis() is set to limit connection lifetime, this property determines whether or not log messages are generated when the pool closes connections due to maximum lifetime exceeded. Set this property to false to suppress log messages when connections expire.
    
    Parameters:
    logExpiredConnections - Whether or not log messages are generated when the pool closes connections due to maximum lifetime exceeded.
  - getJmxName
```
public java.lang.String getJmxName()
```
    Returns the JMX name that has been requested for this DataSource. If the requested name is not valid, an alternative may be chosen.
    
    Returns:
    The JMX name that has been requested for this DataSource.
  - setJmxName
```
public void setJmxName(java.lang.String jmxName)
```
    Sets the JMX name that has been requested for this DataSource. If the requested name is not valid, an alternative may be chosen. This DataSource will attempt to register itself using this name. If another component registers this DataSource with JMX and this name is valid this name will be used in preference to any specified by the other component.
    
    Parameters:
    jmxName - The JMX name that has been requested for this DataSource
  - getEnableAutoCommitOnReturn
```
public boolean getEnableAutoCommitOnReturn()
```
    Returns the value of the flag that controls whether or not connections being returned to the pool will be checked and configured with Connection.setAutoCommit(true) if the auto commit setting is false when the connection is returned. It is true by default.
    
    Returns:
    Whether or not connections being returned to the pool will be checked and configured with auto-commit.
  - setEnableAutoCommitOnReturn
```
public void setEnableAutoCommitOnReturn(boolean enableAutoCommitOnReturn)
```
    Sets the value of the flag that controls whether or not connections being returned to the pool will be checked and configured with Connection.setAutoCommit(true) if the auto commit setting is false when the connection is returned. It is true by default.
    
    Parameters:
    enableAutoCommitOnReturn - Whether or not connections being returned to the pool will be checked and configured with auto-commit.
  - getRollbackOnReturn
```
public boolean getRollbackOnReturn()
```
    Gets the current value of the flag that controls whether a connection will be rolled back when it is returned to the pool if auto commit is not enabled and the connection is not read only.
    
    Returns:
    whether a connection will be rolled back when it is returned to the pool.
  - setRollbackOnReturn
```
public void setRollbackOnReturn(boolean rollbackOnReturn)
```
    Sets the flag that controls if a connection will be rolled back when it is returned to the pool if auto commit is not enabled and the connection is not read only.
    
    Parameters:
    rollbackOnReturn - whether a connection will be rolled back when it is returned to the pool.
  - getDisconnectionSqlCodes
```
public java.util.Set<java.lang.String> getDisconnectionSqlCodes()
```
    Returns the set of SQL_STATE codes considered to signal fatal conditions.
    
    Returns:
    fatal disconnection state codes
    Since:
    
    2.1
    
    See Also:
    setDisconnectionSqlCodes(Collection)
  - getDisconnectionSqlCodesAsArray
```
public java.lang.String[] getDisconnectionSqlCodesAsArray()
```
    Provides the same data as getDisconnectionSqlCodes() but in an array so it is accessible via JMX.
    
    Specified by:
    
    getDisconnectionSqlCodesAsArray in interface BasicDataSourceMXBean
    
    Returns:
    getDisconnectionSqlCodesAsArray()
    Since:
    
    2.1
  - setDisconnectionSqlCodes
```
public void setDisconnectionSqlCodes(java.util.Collection<java.lang.String> disconnectionSqlCodes)
```
    Sets the SQL_STATE codes considered to signal fatal conditions.
    Overrides the defaults in Utils.DISCONNECTION_SQL_CODES (plus anything starting with Utils.DISCONNECTION_SQL_CODE_PREFIX). If this property is non-null and getFastFailValidation() is true, whenever connections created by this datasource generate exceptions with SQL_STATE codes in this list, they will be marked as "fatally disconnected" and subsequent validations will fail fast (no attempt at isValid or validation query).
    
    If getFastFailValidation() is false setting this property has no effect.
    
    Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.
    
    Parameters:
    disconnectionSqlCodes - SQL_STATE codes considered to signal fatal conditions
    Since:
    
    2.1
  - getFastFailValidation
```
public boolean getFastFailValidation()
```
    True means that validation will fail immediately for connections that have previously thrown SQLExceptions with SQL_STATE indicating fatal disconnection errors.
    
    Specified by:
    
    getFastFailValidation in interface BasicDataSourceMXBean
    
    Returns:
    true if connections created by this datasource will fast fail validation.
    Since:
    
    2.1
    
    See Also:
    setDisconnectionSqlCodes(Collection)
  - setFastFailValidation
```
public void setFastFailValidation(boolean fastFailValidation)
```
    Parameters:
    fastFailValidation - true means connections created by this factory will fast fail validation
    Since:
    
    2.1
    
    See Also:
    getFastFailValidation()
  - getConnectionPool
```
protected GenericObjectPool<PoolableConnection> getConnectionPool()
```
  - getConnection
```
public java.sql.Connection getConnection()
                                  throws java.sql.SQLException
```
    Creates (if necessary) and return a connection to the database.
    
    Specified by:
    
    getConnection in interface javax.sql.DataSource
    
    Returns:
    a database connection
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
  - getConnection
```
public java.sql.Connection getConnection(java.lang.String user,
                                java.lang.String pass)
                                  throws java.sql.SQLException
```
    BasicDataSource does NOT support this method.
    
    Specified by:
    
    getConnection in interface javax.sql.DataSource
    
    Parameters:
    user - Database user on whose behalf the Connection is being made
    pass - The database user's password
    
    Returns:
    nothing - always throws UnsupportedOperationException
    
    Throws:
    
    java.lang.UnsupportedOperationException - always thrown.
    
    java.sql.SQLException - if a database access error occurs
  - getLoginTimeout
```
public int getLoginTimeout()
                    throws java.sql.SQLException
```
    BasicDataSource does NOT support this method.
    Returns the login timeout (in seconds) for connecting to the database.
    
    Calls createDataSource(), so has the side effect of initializing the connection pool.
    
    Specified by:
    
    getLoginTimeout in interface javax.sql.CommonDataSource
    
    Returns:
    login timeout in seconds
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
    
    java.lang.UnsupportedOperationException - If the DataSource implementation does not support the login timeout feature.
  - getLogWriter
```
public java.io.PrintWriter getLogWriter()
                                 throws java.sql.SQLException
```
    Returns the log writer being used by this data source.
    
    Calls createDataSource(), so has the side effect of initializing the connection pool.
    
    Specified by:
    
    getLogWriter in interface javax.sql.CommonDataSource
    
    Returns:
    log writer in use
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
  - setLoginTimeout
```
public void setLoginTimeout(int loginTimeout)
                     throws java.sql.SQLException
```
    BasicDataSource does NOT support this method.
    Set the login timeout (in seconds) for connecting to the database.
    
    Calls createDataSource(), so has the side effect of initializing the connection pool.
    
    Specified by:
    
    setLoginTimeout in interface javax.sql.CommonDataSource
    
    Parameters:
    loginTimeout - The new login timeout, or zero for no timeout
    
    Throws:
    
    java.lang.UnsupportedOperationException - If the DataSource implementation does not support the login timeout feature.
    
    java.sql.SQLException - if a database access error occurs
  - setLogWriter
```
public void setLogWriter(java.io.PrintWriter logWriter)
                  throws java.sql.SQLException
```
    Sets the log writer being used by this data source.
    
    Calls createDataSource(), so has the side effect of initializing the connection pool.
    
    Specified by:
    
    setLogWriter in interface javax.sql.CommonDataSource
    
    Parameters:
    logWriter - The new log writer
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs
  - getRemoveAbandonedOnBorrow
```
public boolean getRemoveAbandonedOnBorrow()
```
    Flag to remove abandoned connections if they exceed the removeAbandonedTimeout when borrowObject is invoked.
    
    The default value is false.
    
    If set to true a connection is considered abandoned and eligible for removal if it has not been used for more than removeAbandonedTimeout seconds.
    
    Abandoned connections are identified and removed when getConnection() is invoked and all of the following conditions hold:
    - getRemoveAbandonedOnBorrow()
    - getNumActive() > getMaxTotal() - 3
    - getNumIdle() < 2
    Specified by:
    
    getRemoveAbandonedOnBorrow in interface BasicDataSourceMXBean
    
    Returns:
    getRemoveAbandonedOnBorrow()
    See Also:
    getRemoveAbandonedTimeout()
  - setRemoveAbandonedOnMaintenance
```
public void setRemoveAbandonedOnMaintenance(boolean removeAbandonedOnMaintenance)
```
    Parameters:
    removeAbandonedOnMaintenance - true means abandoned connections may be removed on pool maintenance.
    See Also:
    getRemoveAbandonedOnMaintenance()
  - getRemoveAbandonedOnMaintenance
```
public boolean getRemoveAbandonedOnMaintenance()
```
    Flag to remove abandoned connections if they exceed the removeAbandonedTimeout during pool maintenance.
    
    The default value is false.
    
    If set to true a connection is considered abandoned and eligible for removal if it has not been used for more than removeAbandonedTimeout seconds.
    
    Specified by:
    
    getRemoveAbandonedOnMaintenance in interface BasicDataSourceMXBean
    
    Returns:
    getRemoveAbandonedOnMaintenance()
    See Also:
    getRemoveAbandonedTimeout()
  - setRemoveAbandonedOnBorrow
```
public void setRemoveAbandonedOnBorrow(boolean removeAbandonedOnBorrow)
```
    Parameters:
    removeAbandonedOnBorrow - true means abandoned connections may be removed when connections are borrowed from the pool.
    See Also:
    getRemoveAbandonedOnBorrow()
  - getRemoveAbandonedTimeout
```
public int getRemoveAbandonedTimeout()
```
    Timeout in seconds before an abandoned connection can be removed.
    
    Creating a Statement, PreparedStatement or CallableStatement or using one of these to execute a query (using one of the execute methods) resets the lastUsed property of the parent connection.
    
    Abandoned connection cleanup happens when:
    - getRemoveAbandonedOnBorrow() or getRemoveAbandonedOnMaintenance() = true
    - numIdle < 2
    - numActive > maxTotal - 3
    The default value is 300 seconds.
    Specified by:
    
    getRemoveAbandonedTimeout in interface BasicDataSourceMXBean
    
    Returns:
    getRemoveAbandonedTimeout()
  - setRemoveAbandonedTimeout
```
public void setRemoveAbandonedTimeout(int removeAbandonedTimeout)
```
    Sets the timeout in seconds before an abandoned connection can be removed.
    
    Setting this property has no effect if getRemoveAbandonedOnBorrow() and getRemoveAbandonedOnMaintenance() are false.
    
    Parameters:
    removeAbandonedTimeout - new abandoned timeout in seconds
    See Also:
    getRemoveAbandonedTimeout(), getRemoveAbandonedOnBorrow(), getRemoveAbandonedOnMaintenance()
  - getLogAbandoned
```
public boolean getLogAbandoned()
```
    Flag to log stack traces for application code which abandoned a Statement or Connection.
    
    Defaults to false.
    
    Logging of abandoned Statements and Connections adds overhead for every Connection open or new Statement because a stack trace has to be generated.
    
    Specified by:
    
    getLogAbandoned in interface BasicDataSourceMXBean
    
    Returns:
    getLogAbandoned()
  - setLogAbandoned
```
public void setLogAbandoned(boolean logAbandoned)
```
    Parameters:
    logAbandoned - new logAbandoned property value
  - getAbandonedLogWriter
```
public java.io.PrintWriter getAbandonedLogWriter()
```
    Gets the print writer used by this configuration to log information on abandoned objects.
    
    Returns:
    The print writer used by this configuration to log information on abandoned objects.
  - setAbandonedLogWriter
```
public void setAbandonedLogWriter(java.io.PrintWriter logWriter)
```
    Sets the print writer to be used by this configuration to log information on abandoned objects.
    
    Parameters:
    logWriter - The new log writer
  - getAbandonedUsageTracking
```
public boolean getAbandonedUsageTracking()
```
    If the connection pool implements UsageTracking, should the connection pool record a stack trace every time a method is called on a pooled connection and retain the most recent stack trace to aid debugging of abandoned connections?
    
    Specified by:
    
    getAbandonedUsageTracking in interface BasicDataSourceMXBean
    
    Returns:
    true if usage tracking is enabled
  - setAbandonedUsageTracking
```
public void setAbandonedUsageTracking(boolean usageTracking)
```
    If the connection pool implements UsageTracking, configure whether the connection pool should record a stack trace every time a method is called on a pooled connection and retain the most recent stack trace to aid debugging of abandoned connections.
    
    Parameters:
    usageTracking - A value of true will enable the recording of a stack trace on every use of a pooled connection
  - addConnectionProperty
```
public void addConnectionProperty(java.lang.String name,
                         java.lang.String value)
```
    Adds a custom connection property to the set that will be passed to our JDBC driver. This MUST be called before the first connection is retrieved (along with all the other configuration property setters). Calls to this method after the connection pool has been initialized have no effect.
    
    Parameters:
    name - Name of the custom connection property
    value - Value of the custom connection property
  - removeConnectionProperty
```
public void removeConnectionProperty(java.lang.String name)
```
    Removes a custom connection property.
    
    Parameters:
    name - Name of the custom connection property to remove
    See Also:
    addConnectionProperty(String, String)
  - setConnectionProperties
```
public void setConnectionProperties(java.lang.String connectionProperties)
```
    Sets the connection properties passed to driver.connect(...).
    Format of the string must be [propertyName=property;]*
    
    NOTE - The "user" and "password" properties will be added explicitly, so they do not need to be included here.
    
    Parameters:
    connectionProperties - the connection properties used to create new connections
  - close
```
public void close()
           throws java.sql.SQLException
```
    Closes and releases all idle connections that are currently stored in the connection pool associated with this data source.
    
    Connections that are checked out to clients when this method is invoked are not affected. When client applications subsequently invoke Connection.close() to return these connections to the pool, the underlying JDBC connections are closed.
    
    Attempts to acquire connections using getConnection() after this method has been invoked result in SQLExceptions.
    
    This method is idempotent - i.e., closing an already closed BasicDataSource has no effect and does not generate exceptions.
    
    Specified by:
    
    close in interface java.lang.AutoCloseable
    
    Throws:
    
    java.sql.SQLException - if an error occurs closing idle connections
  - isClosed
```
public boolean isClosed()
```
    If true, this data source is closed and no more connections can be retrieved from this datasource.
    
    Specified by:
    
    isClosed in interface BasicDataSourceMXBean
    
    Returns:
    true, if the data source is closed; false otherwise
  - isWrapperFor
```
public boolean isWrapperFor(java.lang.Class<?> iface)
                     throws java.sql.SQLException
```
    Specified by:
    
    isWrapperFor in interface java.sql.Wrapper
    
    Throws:
    
    java.sql.SQLException
  - unwrap
```
public <T> T unwrap(java.lang.Class<T> iface)
         throws java.sql.SQLException
```
    Specified by:
    
    unwrap in interface java.sql.Wrapper
    
    Throws:
    
    java.sql.SQLException
  - getParentLogger
```
public java.util.logging.Logger getParentLogger()
                                         throws java.sql.SQLFeatureNotSupportedException
```
    Specified by:
    
    getParentLogger in interface javax.sql.CommonDataSource
    
    Throws:
    
    java.sql.SQLFeatureNotSupportedException
  - invalidateConnection
```
public void invalidateConnection(java.sql.Connection connection)
                          throws java.lang.IllegalStateException
```
    Manually invalidates a connection, effectively requesting the pool to try to close it, remove it from the pool and reclaim pool capacity.
    
    Parameters:
    connection - The Connection to invalidate.
    
    Throws:
    
    java.lang.IllegalStateException - if invalidating the connection failed.
    Since:
    
    2.1
  - createDataSource
```
protected javax.sql.DataSource createDataSource()
                                         throws java.sql.SQLException
```
    Creates (if necessary) and return the internal data source we are using to manage our connections.
    
    Returns:
    The current internal DataSource or a newly created instance if it has not yet been created.
    
    Throws:
    
    java.sql.SQLException - if the object pool cannot be created.
  - createConnectionFactory
```
protected ConnectionFactory createConnectionFactory()
                                             throws java.sql.SQLException
```
    Creates a JDBC connection factory for this datasource. The JDBC driver is loaded using the following algorithm:
    1. If a Driver instance has been specified via setDriver(Driver) use it
    2. If no Driver instance was specified and driverClassName is specified that class is loaded using the ClassLoader of this class or, if driverClassLoader is set, driverClassName is loaded with the specified ClassLoader.
    3. If driverClassName is specified and the previous attempt fails, the class is loaded using the context class loader of the current thread.
    4. If a driver still isn't loaded one is loaded via the DriverManager using the specified url.
    This method exists so subclasses can replace the implementation class.
    Returns:
    A new connection factory.
    
    Throws:
    
    java.sql.SQLException - If the connection factort cannot be created
  - createConnectionPool
```
protected void createConnectionPool(PoolableConnectionFactory factory)
```
    Creates a connection pool for this datasource. This method only exists so subclasses can replace the implementation class.
    This implementation configures all pool properties other than timeBetweenEvictionRunsMillis. Setting that property is deferred to startPoolMaintenance(), since setting timeBetweenEvictionRunsMillis to a positive value causes GenericObjectPool's eviction timer to be started.
    
    Parameters:
    factory - The factory to use to create new connections for this pool.
  - createObjectPool
```
protected GenericObjectPool<PoolableConnection> createObjectPool(PoolableConnectionFactory factory,
                                                     GenericObjectPoolConfig<PoolableConnection> poolConfig,
                                                     AbandonedConfig abandonedConfig)
```
    Creates an object pool used to provide pooling support for JDBC connections.
    
    Parameters:
    factory - the object factory
    poolConfig - the object pool configuration
    abandonedConfig - the abandoned objects configuration
    
    Returns:
    a non-null instance
  - startPoolMaintenance
```
protected void startPoolMaintenance()
```
    Starts the connection pool maintenance task, if configured.
  - createDataSourceInstance
```
protected javax.sql.DataSource createDataSourceInstance()
                                                 throws java.sql.SQLException
```
    Creates the actual data source instance. This method only exists so that subclasses can replace the implementation class.
    
    Returns:
    A new DataSource instance
    
    Throws:
    
    java.sql.SQLException - if unable to create a datasource instance
  - createPoolableConnectionFactory
```
protected PoolableConnectionFactory createPoolableConnectionFactory(ConnectionFactory driverConnectionFactory)
                                                             throws java.sql.SQLException
```
    Creates the PoolableConnectionFactory and attaches it to the connection pool. This method only exists so subclasses can replace the default implementation.
    
    Parameters:
    driverConnectionFactory - JDBC connection factory
    
    Returns:
    A new PoolableConnectionFactory configured with the current configuration of this BasicDataSource
    
    Throws:
    
    java.sql.SQLException - if an error occurs creating the PoolableConnectionFactory
  - validateConnectionFactory
```
protected static void validateConnectionFactory(PoolableConnectionFactory connectionFactory)
                                         throws java.lang.Exception
```
    Throws:
    
    java.lang.Exception
  - log
```
protected void log(java.lang.String message)
```
  - preRegister
```
public javax.management.ObjectName preRegister(javax.management.MBeanServer server,
                                      javax.management.ObjectName objectName)
```
    Specified by:
    
    preRegister in interface javax.management.MBeanRegistration
  - postRegister
```
public void postRegister(java.lang.Boolean registrationDone)
```
    Specified by:
    
    postRegister in interface javax.management.MBeanRegistration
  - preDeregister
```
public void preDeregister()
                   throws java.lang.Exception
```
    Specified by:
    
    preDeregister in interface javax.management.MBeanRegistration
    
    Throws:
    
    java.lang.Exception
  - postDeregister
```
public void postDeregister()
```
    Specified by:
    
    postDeregister in interface javax.management.MBeanRegistration
  - getRegisteredJmxName
```
protected javax.management.ObjectName getRegisteredJmxName()
```

Class BasicDataSource

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

BasicDataSource

Method Detail

getDefaultAutoCommit

setDefaultAutoCommit

getDefaultReadOnly

setDefaultReadOnly

getDefaultTransactionIsolation

setDefaultTransactionIsolation

getDefaultQueryTimeout

setDefaultQueryTimeout

getDefaultCatalog

setDefaultCatalog

getCacheState

setCacheState

getDriver

setDriver

getDriverClassName

setDriverClassName

getDriverClassLoader

setDriverClassLoader

getLifo

setLifo

getMaxTotal

setMaxTotal

getMaxIdle

setMaxIdle

getMinIdle

setMinIdle

getInitialSize

setInitialSize

getMaxWaitMillis

setMaxWaitMillis

isPoolPreparedStatements

setPoolPreparedStatements

getMaxOpenPreparedStatements

setMaxOpenPreparedStatements

getTestOnCreate

setTestOnCreate

getTestOnBorrow

setTestOnBorrow

getTestOnReturn

setTestOnReturn

getTimeBetweenEvictionRunsMillis

setTimeBetweenEvictionRunsMillis

getNumTestsPerEvictionRun

setNumTestsPerEvictionRun

getMinEvictableIdleTimeMillis

setMinEvictableIdleTimeMillis

setSoftMinEvictableIdleTimeMillis

getSoftMinEvictableIdleTimeMillis

getEvictionPolicyClassName

setEvictionPolicyClassName

getTestWhileIdle

setTestWhileIdle

getNumActive

getNumIdle

getPassword

setPassword

getUrl

setUrl

getUsername

setUsername

getValidationQuery

setValidationQuery

getValidationQueryTimeout

setValidationQueryTimeout

getConnectionInitSqls

getConnectionInitSqlsAsArray

setConnectionInitSqls

isAccessToUnderlyingConnectionAllowed

setAccessToUnderlyingConnectionAllowed

getMaxConnLifetimeMillis

getLogExpiredConnections

setMaxConnLifetimeMillis

setLogExpiredConnections