org.apache.cayenne.event
Class JavaGroupsBridgeFactory

java.lang.Object
  org.apache.cayenne.event.JavaGroupsBridgeFactory

All Implemented Interfaces:

EventBridgeFactory

public class JavaGroupsBridgeFactory
extends java.lang.Object
implements EventBridgeFactory

Factory to create JavaGroupsBridge instances. If JavaGroups library is not installed this factory will return a noop EventBridge as a failover mechanism.

Since:

1.1

Author:

Andrei Adamchik

Field Summary

static java.lang.String	JGROUPS_CONFIG_URL_PROPERTY Defines a property for JavaGroups XML configuration file.
static java.lang.String	MCAST_ADDRESS_DEFAULT
static java.lang.String	MCAST_ADDRESS_PROPERTY
static java.lang.String	MCAST_PORT_DEFAULT
static java.lang.String	MCAST_PORT_PROPERTY

Constructor Summary

JavaGroupsBridgeFactory()

Method Summary

EventBridge	createEventBridge(java.util.Collection localSubjects, java.lang.String externalSubject, java.util.Map properties) Creates a JavaGroupsBridge instance.
EventBridge	createEventBridge(EventSubject localSubject, java.util.Map properties) Deprecated. since 1.2, as we now need to support multiple subjects.

Methods inherited from class java.lang.Object

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

Field Detail

MCAST_ADDRESS_DEFAULT

public static final java.lang.String MCAST_ADDRESS_DEFAULT

See Also:

Constant Field Values

MCAST_PORT_DEFAULT

public static final java.lang.String MCAST_PORT_DEFAULT

See Also:

Constant Field Values

MCAST_ADDRESS_PROPERTY

public static final java.lang.String MCAST_ADDRESS_PROPERTY

See Also:

Constant Field Values

MCAST_PORT_PROPERTY

public static final java.lang.String MCAST_PORT_PROPERTY

See Also:

Constant Field Values

JGROUPS_CONFIG_URL_PROPERTY

public static final java.lang.String JGROUPS_CONFIG_URL_PROPERTY

Defines a property for JavaGroups XML configuration file. Example file can be found at http://www.filip.net/javagroups/javagroups-protocol.xml.

See Also:

Constant Field Values

Constructor Detail

JavaGroupsBridgeFactory

public JavaGroupsBridgeFactory()

Method Detail

createEventBridge

public EventBridge createEventBridge(EventSubject localSubject,
                                     java.util.Map properties)

Deprecated. since 1.2, as we now need to support multiple subjects.

Specified by:

createEventBridge in interface EventBridgeFactory

createEventBridge

public EventBridge createEventBridge(java.util.Collection localSubjects,
                                     java.lang.String externalSubject,
                                     java.util.Map properties)

Creates a JavaGroupsBridge instance. Since JavaGroups is not shipped with Cayenne and should be installed separately, a common misconfiguration problem may be the absense of JavaGroups jar file. This factory returns a dummy noop EventBridge, if this is the case. This would allow the application to continue to run, but without remote notifications.

Specified by:

createEventBridge in interface EventBridgeFactory