yext.graphml.processor
Class PostprocessorInputHandler

java.lang.Object
  yext.graphml.reader.AbstractDOMInputHandler
      yext.graphml.processor.PostprocessorInputHandler

All Implemented Interfaces:

DOMInputHandler, Precedence

public class PostprocessorInputHandler

extends AbstractDOMInputHandler

implements Precedence

This input handler parses end executes postprocessor instructions specified in GraphML files at graph scope.

Field Summary

Fields inherited from interface org.graphdrawing.graphml.reader.dom.Precedence

GRAPHML_PRECEDENCE

Constructor Summary

PostprocessorInputHandler()

Method Summary

boolean	acceptKey(NamedNodeMap map, int scopeType) Accepts keys at graph scope whose attribute yfiles.type has the value postprocessors.
protected void	applyDefault(DOMGraphMLParseContext context, Graph graph, Object nodeedge) Does nothing yet.
int	getPrecedence() Has precedence Precedence.GRAPHML_PRECEDENCE + 1.
protected void	invokePostProcessor(Graph graph, Object postprocessor) Invokes the given postprocessor on the given graph.
protected void	parseData(DOMGraphMLParseContext context, Graph graph, Object nodeedge, boolean defaultMode, Node domNode) Parses and executes postprocessing instructions.

Methods inherited from class yext.graphml.reader.AbstractDOMInputHandler

applyDefault, parseData

Methods inherited from class java.lang.Object

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

Constructor Detail

PostprocessorInputHandler

public PostprocessorInputHandler()

Method Detail

acceptKey

public boolean acceptKey(NamedNodeMap map,
                         int scopeType)

Accepts keys at graph scope whose attribute yfiles.type has the value postprocessors.

Specified by:

acceptKey in interface DOMInputHandler

Parameters:

map - the attributes of the key tag.

scopeType - the scope for which the key is defined. One of GraphMLConstants.SCOPE_ALL, GraphMLConstants.SCOPE_EDGE, GraphMLConstants.SCOPE_ENDPOINT, GraphMLConstants.SCOPE_GRAPH, GraphMLConstants.SCOPE_NODE, GraphMLConstants.SCOPE_PORT, GraphMLConstants.SCOPE_HYPEREDGE.

getPrecedence

public int getPrecedence()

Has precedence Precedence.GRAPHML_PRECEDENCE + 1.

Specified by:

getPrecedence in interface Precedence

Returns:

the precedence value of the handler

parseData

protected void parseData(DOMGraphMLParseContext context,
                         Graph graph,
                         Object nodeedge,
                         boolean defaultMode,
                         Node domNode)

Parses and executes postprocessing instructions.

Specified by:

parseData in class AbstractDOMInputHandler

Parameters:

context - The context in which the parser is.

graph - The current graph in the parse context.

nodeedge - The current node/edge in the parse context.

defaultMode - Whether default data or real data is read.

domNode - The DOM node which is actually processed.

invokePostProcessor

protected void invokePostProcessor(Graph graph,
                                   Object postprocessor)

Invokes the given postprocessor on the given graph.

applyDefault

protected void applyDefault(DOMGraphMLParseContext context,
                            Graph graph,
                            Object nodeedge)

Does nothing yet.

Specified by:

applyDefault in class AbstractDOMInputHandler

Parameters:

context - The context in which the parser is.

graph - The current graph in the parse context.

nodeedge - The current node/edge in the parse context.