com.yworks.yfiles.server.graphml.flexio
Class LabelDeserializer

java.lang.Object
  y.io.graphml.input.AbstractDeserializer
      com.yworks.yfiles.server.graphml.flexio.deserializer.AbstractDeserializer
          com.yworks.yfiles.server.graphml.flexio.LabelDeserializer

All Implemented Interfaces:

DeserializationHandler, java.util.EventListener

public class LabelDeserializer

extends AbstractDeserializer

This class manages the deserialization of labels in the graphml input.

The input handler will parse the xml element that represents the list of labels for a graph item and store the List of deserialized Label instances in a data provider registered with the graph.

To deserialize a custom style or custom model parameter, corresponding deserializer instances can be registered. These deserializers will be used automatically by this handler.

Constructor Summary

LabelDeserializer()

Method Summary

boolean	canHandle(DeserializationEvent e) Returns true if DeserializationEvent.getXmlNode() satisfies the properties of this class.
protected Label	createLabel(java.lang.String labelText, ILabelModelParameter parameter, YDimension preferredSize, ILabelStyle style) Create a label instance
java.lang.Object	deserializeNode(org.w3c.dom.Node xmlNode, GraphMLParseContext context)
java.lang.String	getElementName(GraphMLParseContext context) The local name that the node must satisfy if it should be deserialized.

Methods inherited from class com.yworks.yfiles.server.graphml.flexio.deserializer.AbstractDeserializer

getXmlNamespaceURI, onHandleDeserialization

Methods inherited from class java.lang.Object

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

Constructor Detail

LabelDeserializer

public LabelDeserializer()

Method Detail

canHandle

public boolean canHandle(DeserializationEvent e)

Returns true if DeserializationEvent.getXmlNode() satisfies the properties of this class.

Overrides:

canHandle in class AbstractDeserializer

Parameters:

e - The event data.

Returns:

true

See Also:

AbstractDeserializer.getElementName(y.io.graphml.input.GraphMLParseContext)

getElementName

public java.lang.String getElementName(GraphMLParseContext context)

The local name that the node must satisfy if it should be deserialized. This method is called by canHandle(y.io.graphml.input.DeserializationEvent).

Specified by:

getElementName in class AbstractDeserializer

Parameters:

context - The parse context.

Returns:

'labels'.

deserializeNode

public java.lang.Object deserializeNode(org.w3c.dom.Node xmlNode,
                                        GraphMLParseContext context)
                                 throws GraphMLParseException

Throws:

GraphMLParseException

createLabel

protected Label createLabel(java.lang.String labelText,
                            ILabelModelParameter parameter,
                            YDimension preferredSize,
                            ILabelStyle style)

Create a label instance

Parameters:

labelText - The label text

parameter - The model parameter that determine the label's placement

preferredSize - The preferred size of the label

style - The style that determines the visual representation of the label

Returns:

A new Label instance with the provided properties.