org.apache.catalina.tribes.tipis
Class ReplicatedMap<K,V>
java.lang.Object
org.apache.catalina.tribes.tipis.AbstractReplicatedMap<K,V>
org.apache.catalina.tribes.tipis.ReplicatedMap<K,V>
- All Implemented Interfaces:
- java.io.Serializable, java.util.Map<K,V>, ChannelListener, RpcCallback, Heartbeat, MembershipListener
public class ReplicatedMap<K,V>
- extends AbstractReplicatedMap<K,V>
All-to-all replication for a hash map implementation. Each node in the cluster will carry an identical
copy of the map.
This map implementation doesn't have a background thread running to replicate changes.
If you do have changes without invoking put/remove then you need to invoke one of the following methods:
replicate(Object,boolean) - replicates only the object that belongs to the keyreplicate(boolean) - Scans the entire map for changes and replicates data
the boolean value in the replicate method used to decide
whether to only replicate objects that implement the ReplicatedMapEntry interface
or to replicate all objects. If an object doesn't implement the ReplicatedMapEntry interface
each time the object gets replicated the entire object gets serialized, hence a call to replicate(true)
will replicate all objects in this map that are using this node as primary.
REMEMBER TO CALL breakdown() or finalize()
when you are done with the map to avoid memory leaks.
TODO implement periodic sync/transfer thread
TODO memberDisappeared, should do nothing except change map membership
by default it relocates the primary objects
- Version:
- 1.0
- Author:
- Filip Hanik
- See Also:
- Serialized Form
| Nested classes/interfaces inherited from interface java.util.Map |
java.util.Map.Entry<K,V> |
| Fields inherited from class org.apache.catalina.tribes.tipis.AbstractReplicatedMap |
accessTimeout, channel, channelSendOptions, currentNode, DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR, externalLoaders, mapContextName, mapMembers, mapname, mapOwner, rpcChannel, rpcTimeout, stateMutex, stateTransferred |
|
Constructor Summary |
ReplicatedMap(AbstractReplicatedMap.MapOwner owner,
Channel channel,
long timeout,
java.lang.String mapContextName,
java.lang.ClassLoader[] cls)
Creates a new map |
ReplicatedMap(AbstractReplicatedMap.MapOwner owner,
Channel channel,
long timeout,
java.lang.String mapContextName,
java.lang.ClassLoader[] cls,
boolean terminate)
Creates a new map |
ReplicatedMap(AbstractReplicatedMap.MapOwner owner,
Channel channel,
long timeout,
java.lang.String mapContextName,
int initialCapacity,
java.lang.ClassLoader[] cls)
Creates a new map |
ReplicatedMap(AbstractReplicatedMap.MapOwner owner,
Channel channel,
long timeout,
java.lang.String mapContextName,
int initialCapacity,
float loadFactor,
java.lang.ClassLoader[] cls)
Creates a new map |
| Methods inherited from class org.apache.catalina.tribes.tipis.AbstractReplicatedMap |
accept, breakdown, broadcast, clear, clear, clone, containsKey, containsValue, entrySet, entrySetFull, equals, excludeFromSet, finalize, get, getAccessTimeout, getChannel, getChannelSendOptions, getExternalLoaders, getInternal, getMapContextName, getMapMembers, getMapMembers, getMapMembersExcl, getMapOwner, getNextBackupIndex, getNextBackupNode, getRpcChannel, getRpcTimeout, getStateMutex, hashCode, heartbeat, init, inSet, isEmpty, isStateTransferred, keySet, keySetFull, leftOver, mapMemberAdded, memberAdded, memberAlive, memberDisappeared, messageReceived, ping, printMap, put, put, putAll, remove, remove, replicate, replicate, replyRequest, setAccessTimeout, setChannelSendOptions, setExternalLoaders, setMapOwner, size, sizeFull, transferState, values, wrap |
| Methods inherited from class java.lang.Object |
getClass, notify, notifyAll, toString, wait, wait, wait |
ReplicatedMap
public ReplicatedMap(AbstractReplicatedMap.MapOwner owner,
Channel channel,
long timeout,
java.lang.String mapContextName,
int initialCapacity,
float loadFactor,
java.lang.ClassLoader[] cls)
- Creates a new map
- Parameters:
channel - The channel to use for communicationtimeout - long - timeout for RPC messagsmapContextName - String - unique name for this map, to allow multiple maps per channelinitialCapacity - int - the size of this map, see HashMaploadFactor - float - load factor, see HashMap
ReplicatedMap
public ReplicatedMap(AbstractReplicatedMap.MapOwner owner,
Channel channel,
long timeout,
java.lang.String mapContextName,
int initialCapacity,
java.lang.ClassLoader[] cls)
- Creates a new map
- Parameters:
channel - The channel to use for communicationtimeout - long - timeout for RPC messagsmapContextName - String - unique name for this map, to allow multiple maps per channelinitialCapacity - int - the size of this map, see HashMap
ReplicatedMap
public ReplicatedMap(AbstractReplicatedMap.MapOwner owner,
Channel channel,
long timeout,
java.lang.String mapContextName,
java.lang.ClassLoader[] cls)
- Creates a new map
- Parameters:
channel - The channel to use for communicationtimeout - long - timeout for RPC messagsmapContextName - String - unique name for this map, to allow multiple maps per channel
ReplicatedMap
public ReplicatedMap(AbstractReplicatedMap.MapOwner owner,
Channel channel,
long timeout,
java.lang.String mapContextName,
java.lang.ClassLoader[] cls,
boolean terminate)
- Creates a new map
- Parameters:
channel - The channel to use for communicationtimeout - long - timeout for RPC messagsmapContextName - String - unique name for this map, to allow multiple maps per channelterminate - boolean - Flag for whether to terminate this map that failed to start.
getStateMessageType
protected int getStateMessageType()
- Specified by:
getStateMessageType in class AbstractReplicatedMap<K,V>
publishEntryInfo
protected Member[] publishEntryInfo(java.lang.Object key,
java.lang.Object value)
throws ChannelException
- publish info about a map pair (key/value) to other nodes in the cluster
- Specified by:
publishEntryInfo in class AbstractReplicatedMap<K,V>
- Parameters:
key - Objectvalue - Object
- Returns:
- Member - the backup node
- Throws:
ChannelException
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