ptolemy.vergil.kernel
Class AttributeNodeModel

java.lang.Object
  ptolemy.vergil.basic.NamedObjNodeModel
      ptolemy.vergil.kernel.AttributeNodeModel

All Implemented Interfaces:

NodeModel

public class AttributeNodeModel
extends NamedObjNodeModel

A model for an attribute as a diva graph node. This is used for visible attributes.

Since:

Ptolemy II 2.0

Version:

$Id: AttributeNodeModel.java 41477 2006-03-29 00:03:58Z cxh $

Author:

Steve Neuendorffer and Edward A. Lee

Accepted Rating:

Red (reviewmoderator)

Proposed Rating:

Red (yourname)

Constructor Summary

AttributeNodeModel()

Method Summary

java.lang.String	getDeleteNodeMoML(java.lang.Object node) Return a MoML String that will delete the given node from the Ptolemy model.
java.lang.Object	getParent(java.lang.Object node) Return the graph parent of the given node.
java.util.Iterator	inEdges(java.lang.Object node) Return an iterator over the edges coming into the given node.
java.util.Iterator	outEdges(java.lang.Object node) Return an iterator over the edges coming out of the given node.
void	removeNode(java.lang.Object eventSource, java.lang.Object node) Remove the given node from the model.

Methods inherited from class java.lang.Object

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

Constructor Detail

AttributeNodeModel

public AttributeNodeModel()

Method Detail

getDeleteNodeMoML

public java.lang.String getDeleteNodeMoML(java.lang.Object node)

Return a MoML String that will delete the given node from the Ptolemy model.

Specified by:

getDeleteNodeMoML in class NamedObjNodeModel

Parameters:

node - The node to be deleted.

Returns:

A valid MoML string.

getParent

public java.lang.Object getParent(java.lang.Object node)

Return the graph parent of the given node.

Parameters:

node - The node, which is assumed to be an instance of Locatable.

Returns:

The container of the location's container, which should be the root of the graph.

inEdges

public java.util.Iterator inEdges(java.lang.Object node)

Return an iterator over the edges coming into the given node.

Parameters:

node - The node.

Returns:

A NullIterator, since no edges are attached to attributes.

outEdges

public java.util.Iterator outEdges(java.lang.Object node)

Return an iterator over the edges coming out of the given node.

Parameters:

node - The node.

Returns:

A NullIterator, since no edges are attached to attributes.

removeNode

public void removeNode(java.lang.Object eventSource,
                       java.lang.Object node)

Remove the given node from the model. The node is assumed to be an instance of Locatable belonging to an attribute. The removal is accomplished by queueing a change request with the container.

Specified by:

removeNode in class NamedObjNodeModel

Parameters:

eventSource - The source of the remove event (ignored).

node - The node.