y.io.gml
Class NodeParser

java.lang.Object
  y.io.gml.ItemParser
      y.io.gml.NodeParser

All Implemented Interfaces:

GMLTokenizer.Callback

Direct Known Subclasses:

HierarchyNodeParser

public class NodeParser
extends ItemParser

This class can parse Nodes from valid GML. It is used by GraphParser

Field Summary

protected Graph2D	graph The graph instance for which the nodes will be created.
protected java.util.Map	id2Node The mapping between the gml IDs and the nodes.
protected LabelGraphicsParser	labelGraphics The parser for the label graphics section
protected NodeGraphicsParser	nodeGraphics The parser instance that parses the graphics section
protected NodeRealizer	nr The current realizer that is parsed.

Fields inherited from class y.io.gml.ItemParser

attributes, childMap, delegate, level

Constructor Summary

NodeParser(Graph2D graph, java.util.Map id2Node)

Method Summary

void	begin() this method will be called as soon as the parser enters the scope.
void	childFinished(ItemParser child) this method will be called, as soon as the a child ItemParser finished and returned from its end() method.
void	end() this method will be called as soon as the parser leaves the scope.
java.lang.Object	getItem() Returns the "product" of this scope.
protected void	handleLabels() Handles the label and label graphics section after parsing.

Methods inherited from class y.io.gml.ItemParser

addAttribute, addChild, attribute, attribute, beginScope, endScope, getAttributes, getBoolean, getDouble, getDouble, getInt, getInt, getLevel, getString

Methods inherited from class java.lang.Object

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

Field Detail

graph

protected Graph2D graph

The graph instance for which the nodes will be created.

nr

protected NodeRealizer nr

The current realizer that is parsed.

nodeGraphics

protected NodeGraphicsParser nodeGraphics

The parser instance that parses the graphics section

id2Node

protected java.util.Map id2Node

The mapping between the gml IDs and the nodes.

labelGraphics

protected LabelGraphicsParser labelGraphics

The parser for the label graphics section

Constructor Detail

NodeParser

public NodeParser(Graph2D graph,
                  java.util.Map id2Node)

Method Detail

begin

public void begin()

Description copied from class: ItemParser

this method will be called as soon as the parser enters the scope. This implementation will clear the attribute map. Subclasses should therefore make a super call.

Overrides:

begin in class ItemParser

childFinished

public void childFinished(ItemParser child)

Description copied from class: ItemParser

this method will be called, as soon as the a child ItemParser finished and returned from its end() method. This implementation does nothing. Subclasses should nevertheless make a super call.

Overrides:

childFinished in class ItemParser

Parameters:

child - the child ItemParser, which just finished

handleLabels

protected void handleLabels()

Handles the label and label graphics section after parsing.

end

public void end()

Description copied from class: ItemParser

this method will be called as soon as the parser leaves the scope. This implementation does nothing. Subclasses should nevertheless make a super call.

Overrides:

end in class ItemParser

getItem

public java.lang.Object getItem()

Description copied from class: ItemParser

Returns the "product" of this scope. This method should be called after this parser has left the scope, i.e. after ItemParser.end() has been called. The latter should construct the resulting item from the collected data and this item should be returned by this method. By default, this method return the map of the attributes.

Overrides:

getItem in class ItemParser

Returns:

the result of the parsing, in this case a Map