Package org.eclipse.persistence.descriptors.partitioning

Class ReplicationPartitioningPolicy

java.lang.Object

org.eclipse.persistence.descriptors.partitioning.PartitioningPolicy

org.eclipse.persistence.descriptors.partitioning.ReplicationPartitioningPolicy

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

RoundRobinPartitioningPolicy, UnionPartitioningPolicy

public class ReplicationPartitioningPolicy
extends PartitioningPolicy

PUBLIC: ReplicationPartitioningPolicy sends requests to a set of connection pools. It is for replicating data across a cluster of database machines. Only modification queries are replicated.

See Also:

• Serialized Form

Author:

James Sutherland

Field Summary

Fields

Modifier and Type	Field	Description
protected List<String>	connectionPools

Fields inherited from class org.eclipse.persistence.descriptors.partitioning.PartitioningPolicy

name

Constructor Summary

Constructors

Constructor	Description
ReplicationPartitioningPolicy()
ReplicationPartitioningPolicy(String... pools)
ReplicationPartitioningPolicy(List<String> pools)

Method Summary

Modifier and Type	Method	Description
void	addConnectionPool(String connectionPool)	PUBLIC: Add the connection pool name to the list of pools to rotate queries through.
List<String>	getConnectionPools()	PUBLIC: Return the list of connection pool names to replicate queries to.
List<org.eclipse.persistence.internal.databaseaccess.Accessor>	getConnectionsForQuery(org.eclipse.persistence.internal.sessions.AbstractSession session, DatabaseQuery query, org.eclipse.persistence.internal.sessions.AbstractRecord arguments)	INTERNAL: Get a connection from each pool.
void	initialize(org.eclipse.persistence.internal.sessions.AbstractSession session)	INTERNAL: Default the connection pools to all pools if unset.
void	setConnectionPools(List<String> connectionPools)	PUBLIC: Set the list of connection pool names to replicate queries to.

Methods inherited from class org.eclipse.persistence.descriptors.partitioning.PartitioningPolicy

acquireAccessor, convertClassNamesToClasses, getAccessor, getName, partitionPersist, setName

Methods inherited from class java.lang.Object

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

Field Details

connectionPools

protected List<String> connectionPools

Constructor Details

ReplicationPartitioningPolicy

public ReplicationPartitioningPolicy()

ReplicationPartitioningPolicy

public ReplicationPartitioningPolicy(String... pools)

ReplicationPartitioningPolicy

public ReplicationPartitioningPolicy(List<String> pools)

Method Details

initialize

public void initialize(org.eclipse.persistence.internal.sessions.AbstractSession session)

INTERNAL: Default the connection pools to all pools if unset.

Overrides:

initialize in class PartitioningPolicy

getConnectionPools

public List<String> getConnectionPools()

PUBLIC: Return the list of connection pool names to replicate queries to.

setConnectionPools

public void setConnectionPools(List<String> connectionPools)

PUBLIC: Set the list of connection pool names to replicate queries to. A connection pool with the same name must be defined on the ServerSession.

addConnectionPool

public void addConnectionPool(String connectionPool)

PUBLIC: Add the connection pool name to the list of pools to rotate queries through.

getConnectionsForQuery

public List<org.eclipse.persistence.internal.databaseaccess.Accessor> getConnectionsForQuery(org.eclipse.persistence.internal.sessions.AbstractSession session,
 DatabaseQuery query,
 org.eclipse.persistence.internal.sessions.AbstractRecord arguments)

INTERNAL: Get a connection from each pool.

Specified by:

getConnectionsForQuery in class PartitioningPolicy