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* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
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*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
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package org.apache.cayenne.event;
import java.util.Collection;
import java.util.Map;
/**
* Factory to create JavaGroupsBridge instances. If JavaGroups library is not installed
* this factory will return a noop EventBridge as a failover mechanism.
* <p/>
* For further information about JavaGroups consult the <a href="http://www.jgroups.org/">documentation</a>.
*
* @since 1.1
*/
public class JavaGroupsBridgeFactory implements EventBridgeFactory {
/**
* Creates a JavaGroupsBridge instance. Since JavaGroups is not shipped with Cayenne
* and should be installed separately, a common misconfiguration problem may be the
* absence 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.
*/
public EventBridge createEventBridge(
Collection<EventSubject> localSubjects,
String externalSubject,
Map<String, String> properties) {
return new JavaGroupsBridge(localSubjects, externalSubject, properties);
}
}