org.hibernate.search.backend.jgroups.impl

Class JGroupsBackend

java.lang.Object

org.hibernate.search.backend.jgroups.impl.JGroupsBackend

All Implemented Interfaces:

Backend

Direct Known Subclasses:

JGroupsMasterBackend, JGroupsSlaveBackend

public class JGroupsBackend
extends Object
implements Backend

Author:

Yoann Rodiere

Field Summary

Fields

Modifier and Type	Field and Description
static String	BLOCK_WAITING_ACK Configuration property specific to the backend instance.
static int	DEFAULT_MESSAGE_TIMEOUT Default value for the MESSAGE_TIMEOUT_MS configuration property.
static String	DELEGATE_BACKEND This JGroups backend is meant to delegate to a different backend on the master node.
static String	MESSAGE_TIMEOUT_MS Specifies the timeout defined on messages sent to other nodes via the JGroups Channel.

Constructor Summary

Constructors

Constructor and Description
JGroupsBackend()

Method Summary

Modifier and Type	Method and Description
void	close()
protected NodeSelectorStrategy	createNodeSelectorStrategy(IndexManager indexManager)
JGroupsBackendQueueProcessor	createQueueProcessor(IndexManager indexManager, WorkerBuildContext context)
void	initialize(Properties properties, WorkerBuildContext context)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.search.backend.spi.Backend

isTransactional

Field Detail

BLOCK_WAITING_ACK

public static final String BLOCK_WAITING_ACK

Configuration property specific to the backend instance. When enabled the invoker thread will use JGroups in synchronous mode waiting for the ACK from the other parties; when disabled it is going to behave as fire and forget: delegates reliability to the JGroups configuration and returns immediately. The default value depends on the backend configuration: if it's set to async, then block_waiting_ack defaults to false.

See Also:

Environment.WORKER_EXECUTION, Constant Field Values

DELEGATE_BACKEND

public static final String DELEGATE_BACKEND

This JGroups backend is meant to delegate to a different backend on the master node. Generally this is expected to be the Lucene backend, but this property allows to specify a different implementation for the delegate.

See Also:

Constant Field Values

MESSAGE_TIMEOUT_MS

public static final String MESSAGE_TIMEOUT_MS

Specifies the timeout defined on messages sent to other nodes via the JGroups Channel. Value interpreted in milliseconds.

See Also:

Constant Field Values

DEFAULT_MESSAGE_TIMEOUT

public static final int DEFAULT_MESSAGE_TIMEOUT

Default value for the MESSAGE_TIMEOUT_MS configuration property.

See Also:

Constant Field Values

Constructor Detail

JGroupsBackend

public JGroupsBackend()

Method Detail

initialize

public void initialize(Properties properties,
                       WorkerBuildContext context)

Specified by:

initialize in interface Backend

close

public void close()

Specified by:

close in interface Backend

createQueueProcessor

public JGroupsBackendQueueProcessor createQueueProcessor(IndexManager indexManager,
                                                         WorkerBuildContext context)

Specified by:

createQueueProcessor in interface Backend

createNodeSelectorStrategy

protected NodeSelectorStrategy createNodeSelectorStrategy(IndexManager indexManager)