Package org.apache.tomcat.dbcp.pool2.impl

Class PooledSoftReference<T>

java.lang.Object

org.apache.tomcat.dbcp.pool2.impl.DefaultPooledObject<T>

org.apache.tomcat.dbcp.pool2.impl.PooledSoftReference<T>

Type Parameters:

T - the type of the underlying object that the wrapped SoftReference refers to.

All Implemented Interfaces:

java.lang.Comparable<PooledObject<T>>, PooledObject<T>

public class PooledSoftReference<T>
extends DefaultPooledObject<T>

Extension of DefaultPooledObject to wrap pooled soft references.

This class is intended to be thread-safe.

Since:

2.0

Constructor Summary

Constructors

Constructor	Description
PooledSoftReference(java.lang.ref.SoftReference<T> reference)	Creates a new PooledSoftReference wrapping the provided reference.

Method Summary

Modifier and Type	Method	Description
T	getObject()	Gets the object that the wrapped SoftReference refers to.
java.lang.ref.SoftReference<T>	getReference()	Gets the SoftReference wrapped by this object.
void	setReference(java.lang.ref.SoftReference<T> reference)	Sets the wrapped reference.
java.lang.String	toString()	Gets a String form of the wrapper for debug purposes.

Methods inherited from class org.apache.tomcat.dbcp.pool2.impl.DefaultPooledObject

allocate, compareTo, deallocate, endEvictionTest, getActiveTimeMillis, getBorrowedCount, getCreateInstant, getCreateTime, getIdleDuration, getIdleTime, getIdleTimeMillis, getLastBorrowInstant, getLastBorrowTime, getLastReturnInstant, getLastReturnTime, getLastUsedInstant, getLastUsedTime, getState, invalidate, markAbandoned, markReturning, printStackTrace, setLogAbandoned, setRequireFullStackTrace, startEvictionTest, use

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.tomcat.dbcp.pool2.PooledObject

equals, getActiveDuration, getActiveTime, getFullDuration, hashCode

Constructor Detail

PooledSoftReference

public PooledSoftReference(java.lang.ref.SoftReference<T> reference)

Creates a new PooledSoftReference wrapping the provided reference.

Parameters:

reference - SoftReference to be managed by the pool

Method Detail

getObject

public T getObject()

Gets the object that the wrapped SoftReference refers to.

Note that if the reference has been cleared, this method will return null.

Specified by:

getObject in interface PooledObject<T>

Overrides:

getObject in class DefaultPooledObject<T>

Returns:

Object referred to by the SoftReference

getReference

public java.lang.ref.SoftReference<T> getReference()

Gets the SoftReference wrapped by this object.

Returns:

underlying SoftReference

setReference

public void setReference(java.lang.ref.SoftReference<T> reference)

Sets the wrapped reference.

This method exists to allow a new, non-registered reference to be held by the pool to track objects that have been checked out of the pool. The actual parameter should be a reference to the same object that getObject() returns before calling this method.

Parameters:

reference - new reference

toString

public java.lang.String toString()

Gets a String form of the wrapper for debug purposes. The format is not fixed and may change at any time.

Specified by:

toString in interface PooledObject<T>

Overrides:

toString in class DefaultPooledObject<T>