y.io.graphml.layout
Class NodeLayoutOutputHandler

java.lang.Object
  y.io.graphml.output.AbstractOutputHandler
      y.io.graphml.layout.NodeLayoutOutputHandler

All Implemented Interfaces:

java.util.EventListener, OutputHandler, OutputHandlerProvider

public class NodeLayoutOutputHandler
extends AbstractOutputHandler

Output handler for node layout information in GraphML.

Constructor Summary

NodeLayoutOutputHandler()

Method Summary

java.util.Collection	getKeyDefinitionAttributes() Adds the key definition for node layout information.
protected java.lang.Object	getValue(GraphMLWriteContext context, java.lang.Object key) Retrieves the NodeLayout instances associated to the specified key node.
protected void	writeValueCore(GraphMLWriteContext context, java.lang.Object data) Calls context.serialize(data) for NodeLayout data.

Methods inherited from class y.io.graphml.output.AbstractOutputHandler

addNameToKeyDefinition, addScopeToKeyDefinition, addTypeToKeyDefinition, addUriToKeyDefinition, getDataTagAttributes, getDefaultValue, getPrecedence, getScope, getValidScopes, hasDefaultValueAssigned, isDefaultValue, isValidScope, isWriteKeyDefault, onQueryOutputHandler, setDefaultValue, setDefaultValueAssigned, setPrecedence, setScope, setValidScopes, setWriteKeyDefault, writeKeyDefinitionContent, writeValue

Methods inherited from class java.lang.Object

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

Constructor Detail

NodeLayoutOutputHandler

public NodeLayoutOutputHandler()

Method Detail

getKeyDefinitionAttributes

public java.util.Collection getKeyDefinitionAttributes()

Adds the key definition for node layout information. For compatibility with Graph2DGraphMLHandler generated GraphML, yfiles.type="nodegraphics" is used.

Specified by:

getKeyDefinitionAttributes in interface OutputHandler

Overrides:

getKeyDefinitionAttributes in class AbstractOutputHandler

Returns:

the key definition attributes for node layout information.

See Also:

AbstractOutputHandler.addNameToKeyDefinition(String), AbstractOutputHandler.addScopeToKeyDefinition(y.io.graphml.KeyScope), AbstractOutputHandler.addTypeToKeyDefinition(y.io.graphml.KeyType), AbstractOutputHandler.addUriToKeyDefinition(String)

writeValueCore

protected void writeValueCore(GraphMLWriteContext context,
                              java.lang.Object data)
                       throws GraphMLWriteException

Calls context.serialize(data) for NodeLayout data.

Specified by:

writeValueCore in class AbstractOutputHandler

Parameters:

context - The current serialization context.

data - The NodeLayout instance to serialize.

Throws:

GraphMLWriteException - if a problem occurs during serialization.

getValue

protected java.lang.Object getValue(GraphMLWriteContext context,
                                    java.lang.Object key)

Retrieves the NodeLayout instances associated to the specified key node.

Specified by:

getValue in class AbstractOutputHandler

Parameters:

context - The current serialization context.

key - The Node instance that is serialized.

Returns:

the NodeLayout instances associated to the specified key node.