rice.p2p.scribe
Interface Scribe

All Known Implementing Classes:

ScribeImpl

public interface Scribe

Version:

$Id: Scribe.java 2551 2005-06-06 19:01:02Z jeffh $

Author:

Alan Mislove

Method Summary

void	addChild(Topic topic, NodeHandle child) Adds a child to the given topic
void	anycast(Topic topic, ScribeContent content) Anycasts the given content to a member of the given topic
NodeHandle[]	getChildren(Topic topic) Returns the list of children for a given topic
Environment	getEnvironment()
NodeHandle	getParent(Topic myTopic) Returns the parent node for a given topic
ScribePolicy	getPolicy() Returns the current policy for this scribe object
Topic[]	getTopics(ScribeClient client) Returns the list of topics the given client is subscribed to.
boolean	isRoot(Topic topic) Returns whether or not this Scribe is the root for the given topic
void	publish(Topic topic, ScribeContent content) Publishes the given message to the topic.
void	removeChild(Topic topic, NodeHandle child) Removes a child from the given topic
void	setPolicy(ScribePolicy policy) Sets the current policy for this scribe object
void	subscribe(Topic topic, ScribeClient client) Subscribes the given client to the provided topic.
void	subscribe(Topic topic, ScribeClient client, ScribeContent content) Subscribes the given client to the provided topic.
void	unsubscribe(Topic topic, ScribeClient client) Unsubscribes the given client from the provided topic.

Method Detail

subscribe

public void subscribe(Topic topic,
                      ScribeClient client)

Subscribes the given client to the provided topic. Any message published to the topic will be delivered to the Client via the deliver() method.

Parameters:

topic - The topic to subscribe to

client - The client to give messages to

subscribe

public void subscribe(Topic topic,
                      ScribeClient client,
                      ScribeContent content)

Subscribes the given client to the provided topic. Any message published to the topic will be delivered to the Client via the deliver() method.

Parameters:

topic - The topic to subscribe to

client - The client to give messages to

content - The content to include in the subscribe

unsubscribe

public void unsubscribe(Topic topic,
                        ScribeClient client)

Unsubscribes the given client from the provided topic.

Parameters:

topic - The topic to unsubscribe from

client - The client to unsubscribe

publish

public void publish(Topic topic,
                    ScribeContent content)

Publishes the given message to the topic.

Parameters:

topic - The topic to publish to

content - The content to publish

anycast

public void anycast(Topic topic,
                    ScribeContent content)

Anycasts the given content to a member of the given topic

Parameters:

topic - The topic to anycast to

content - The content to anycast

getPolicy

public ScribePolicy getPolicy()

Returns the current policy for this scribe object

Returns:

The current policy for this scribe

setPolicy

public void setPolicy(ScribePolicy policy)

Sets the current policy for this scribe object

Parameters:

policy - The current policy for this scribe

isRoot

public boolean isRoot(Topic topic)

Returns whether or not this Scribe is the root for the given topic

Parameters:

topic - The topic in question

Returns:

Whether or not we are currently the root

getChildren

public NodeHandle[] getChildren(Topic topic)

Returns the list of children for a given topic

Parameters:

topic - The topic to return the children of

Returns:

The children of the topic

getParent

public NodeHandle getParent(Topic myTopic)

Returns the parent node for a given topic

Parameters:

myTopic - The topic to return the parent of

Returns:

The parent of the topic

addChild

public void addChild(Topic topic,
                     NodeHandle child)

Adds a child to the given topic

Parameters:

topic - The topic to add the child to

child - The child to add

removeChild

public void removeChild(Topic topic,
                        NodeHandle child)

Removes a child from the given topic

Parameters:

topic - The topic to remove the child from

child - The child to remove

getTopics

public Topic[] getTopics(ScribeClient client)

Returns the list of topics the given client is subscribed to.

Parameters:

client - The client in question

Returns:

The list of topics

getEnvironment

public Environment getEnvironment()

Returns: