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com.aendvari.hermes.broker
Class MessageTopic  

java.lang.Object
  com.aendvari.hermes.broker.MessageTopic

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public class MessageTopic

extends java.lang.Object

Represents a message topic. Topics may only be used with the MessageBroker they are created by.

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Field Summary
protected  com.aendvari.common.osm.OsmNode	node           The leaf node that the topic refers to in the hierarchy.
protected  java.lang.String	path           The topic path.
protected  java.util.HashSet	subscribers           The subscribers to this topic.

 

Constructor Summary
	MessageTopic()           Constructs a MessageTopic.
protected	MessageTopic(com.aendvari.common.osm.OsmNode setNode)           Constructs a MessageTopic.

 

Method Summary
protected  com.aendvari.common.osm.OsmNode	getNode()           Returns the node for this topic.
java.lang.String	getPath()           Returns the topic path.
protected  void	publish(Message message)           Publishes the message to this topic.
protected  void	setNode(com.aendvari.common.osm.OsmNode setNode)           Sets the node for this topic.
protected  void	subscribe(MessageListener listener)           Subscribes the listener to this topic.
protected  void	unsubscribe(MessageListener listener)           Unsubscribes the listener from this topic.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

node

protected com.aendvari.common.osm.OsmNode node

The leaf node that the topic refers to in the hierarchy. This field is used by the MessageBroker for topic creation and management.

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path

protected java.lang.String path

The topic path.

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subscribers

protected java.util.HashSet subscribers

The subscribers to this topic.

Constructor Detail

MessageTopic

public MessageTopic()

Constructs a MessageTopic.

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MessageTopic

protected MessageTopic(com.aendvari.common.osm.OsmNode setNode)

Constructs a MessageTopic.

Method Detail

getPath

public java.lang.String getPath()

Returns the topic path.

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getNode

protected com.aendvari.common.osm.OsmNode getNode()

Returns the node for this topic.

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setNode

protected void setNode(com.aendvari.common.osm.OsmNode setNode)

Sets the node for this topic.

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subscribe

protected void subscribe(MessageListener listener)

Subscribes the listener to this topic.

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unsubscribe

protected void unsubscribe(MessageListener listener)

Unsubscribes the listener from this topic.

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publish

protected void publish(Message message)

Publishes the message to this topic.

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