org.dishevelled.observable.graph.impl
Class ObservableGraphImpl<N,E>

java.lang.Object
  org.dishevelled.graph.impl.AbstractGraphDecorator<N,E>
      org.dishevelled.observable.graph.AbstractObservableGraph<N,E>
          org.dishevelled.observable.graph.impl.ObservableGraphImpl<N,E>

Type Parameters:

N - node value type

E - edge value type

All Implemented Interfaces:

Graph<N,E>, ObservableGraph<N,E>

public final class ObservableGraphImpl<N,E>
extends AbstractObservableGraph<N,E>

Observable graph decorator that fires vetoable graph change events in preXxx methods and graph change events in postXxx methods.

Version:

$Revision$ $Date$

Author:

Michael Heuer

Constructor Summary

ObservableGraphImpl(Graph<N,E> graph)
Create a new observable decorator for the specified graph.

Method Summary

protected void	postClear() Notify subclasses the clear method has just been called on the wrapped graph.
protected void	postCreateEdge(Node<N,E> source, Node<N,E> target, E value, Edge<N,E> edge) Notify subclasses the createEdge method has just been called on the wrapped graph with the specified parameters.
protected void	postCreateNode(N value, Node<N,E> node) Notify subclasses the createNode method has just been called on the wrapped graph with the specified parameter.
protected void	postRemove(Edge<N,E> edge) Notify subclasses the remove(Edge<N, E>) method has just been called on the wrapped graph with the specified parameter.
protected void	postRemove(Node<N,E> node) Notify subclasses the remove(Node<N, E>) method has just been called on the wrapped graph with the specified parameter.
protected boolean	preClear() Notify subclasses the clear method is about to be called on the wrapped graph.
protected boolean	preCreateEdge(Node<N,E> source, Node<N,E> target, E value) Notify subclasses the createEdge method is about to be called on the wrapped graph with the specified parameters.
protected boolean	preCreateNode(N value) Notify subclasses the createNode method is about to be called on the wrapped graph with the specified parameter.
protected boolean	preRemove(Edge<N,E> edge) Notify subclasses the remove(Edge<N, E>) method is about to be called on the wrapped graph with the specified parameter.
protected boolean	preRemove(Node<N,E> node) Notify subclasses the remove(Node<N, E>) method is about to be called on the wrapped graph with the specified parameter.

Methods inherited from class org.dishevelled.observable.graph.AbstractObservableGraph

addGraphChangeListener, addVetoableGraphChangeListener, clear, createEdge, createNode, fireCleared, fireEdgeCreated, fireEdgeRemoved, fireNodeCreated, fireNodeRemoved, fireWillClear, fireWillCreateEdge, fireWillCreateNode, fireWillRemoveEdge, fireWillRemoveNode, getGraphChangeListenerCount, getGraphChangeListeners, getObservableGraphChangeSupport, getVetoableGraphChangeListenerCount, getVetoableGraphChangeListeners, remove, remove, removeGraphChangeListener, removeVetoableGraphChangeListener

Methods inherited from class org.dishevelled.graph.impl.AbstractGraphDecorator

edgeCount, edgeMap, edges, edgeValues, forEachEdge, forEachEdge, forEachEdgeValue, forEachEdgeValue, forEachNode, forEachNode, forEachNodeValue, forEachNodeValue, getGraph, isEmpty, nodeCount, nodeMap, nodes, nodeValues

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.dishevelled.graph.Graph

edgeCount, edgeMap, edges, edgeValues, forEachEdge, forEachEdge, forEachEdgeValue, forEachEdgeValue, forEachNode, forEachNode, forEachNodeValue, forEachNodeValue, isEmpty, nodeCount, nodeMap, nodes, nodeValues

Constructor Detail

ObservableGraphImpl

public ObservableGraphImpl(Graph<N,E> graph)

Create a new observable decorator for the specified graph.

Parameters:

graph - graph to decorate, must not be null

Method Detail

preClear

protected boolean preClear()

Notify subclasses the clear method is about to be called on the wrapped graph. Return true to proceed with the change.

Specified by:

preClear in class AbstractObservableGraph<N,E>

Returns:

true to proceed with the change

postClear

protected void postClear()

Notify subclasses the clear method has just been called on the wrapped graph.

Specified by:

postClear in class AbstractObservableGraph<N,E>

preCreateNode

protected boolean preCreateNode(N value)

Notify subclasses the createNode method is about to be called on the wrapped graph with the specified parameter. Return true to proceed with the change.

Specified by:

preCreateNode in class AbstractObservableGraph<N,E>

Parameters:

value - createNode method parameter

Returns:

true to proceed with the change

postCreateNode

protected void postCreateNode(N value,
                              Node<N,E> node)

Notify subclasses the createNode method has just been called on the wrapped graph with the specified parameter.

Specified by:

postCreateNode in class AbstractObservableGraph<N,E>

Parameters:

value - createNode method parameter

node - newly created node

preRemove

protected boolean preRemove(Node<N,E> node)

Notify subclasses the remove(Node<N, E>) method is about to be called on the wrapped graph with the specified parameter. Return true to proceed with the change.

Specified by:

preRemove in class AbstractObservableGraph<N,E>

Parameters:

node - remove(Node<N, E>) method parameter

Returns:

true to proceed with the change

postRemove

protected void postRemove(Node<N,E> node)

Notify subclasses the remove(Node<N, E>) method has just been called on the wrapped graph with the specified parameter.

Specified by:

postRemove in class AbstractObservableGraph<N,E>

Parameters:

node - remove(Node<N, E>) method parameter

preCreateEdge

protected boolean preCreateEdge(Node<N,E> source,
                                Node<N,E> target,
                                E value)

Notify subclasses the createEdge method is about to be called on the wrapped graph with the specified parameters. Return true to proceed with the change.

Specified by:

preCreateEdge in class AbstractObservableGraph<N,E>

Parameters:

source - createEdge method parameter

target - createEdge method parameter

value - createEdge method parameter

Returns:

true to proceed with the change

postCreateEdge

protected void postCreateEdge(Node<N,E> source,
                              Node<N,E> target,
                              E value,
                              Edge<N,E> edge)

Notify subclasses the createEdge method has just been called on the wrapped graph with the specified parameters.

Specified by:

postCreateEdge in class AbstractObservableGraph<N,E>

Parameters:

source - createEdge method parameter

target - createEdge method parameter

value - createEdge method parameter

edge - newly created edge

preRemove

protected boolean preRemove(Edge<N,E> edge)

Notify subclasses the remove(Edge<N, E>) method is about to be called on the wrapped graph with the specified parameter. Return true to proceed with the change.

Specified by:

preRemove in class AbstractObservableGraph<N,E>

Parameters:

edge - remove(Edge<N, E>) method parameter

Returns:

true to proceed with the change

postRemove

protected void postRemove(Edge<N,E> edge)

Notify subclasses the remove(Edge<N, E>) method has just been called on the wrapped graph with the specified parameter.

Specified by:

postRemove in class AbstractObservableGraph<N,E>

Parameters:

edge - remove(Edge<N, E>) method parameter