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

java.lang.Object
  y.io.graphml.input.AbstractInputHandler
      com.yworks.yfiles.server.graphml.flexio.AbstractInputHandlerProvider
          com.yworks.yfiles.server.graphml.flexio.LabelInputHandler

All Implemented Interfaces:

java.util.EventListener, InputHandler, InputHandlerProvider

public class LabelInputHandler

extends AbstractInputHandlerProvider

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.

The deserialization of the label instances is delegated to the context. 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

LabelInputHandler(KeyScope scope, java.lang.Object dpKey)

Method Summary

boolean	acceptKey(org.w3c.dom.Element keyDefinition) This method is called by AbstractInputHandlerProvider.onQueryInputHandler(y.io.graphml.input.QueryInputHandlersEvent) and shall decide if the given keyDefinition shall be accepted so that this input handler gets provided for the event.
protected java.lang.Object	parseDataCore(GraphMLParseContext context, org.w3c.dom.Node xmlNode)
protected void	setValue(GraphMLParseContext context, java.lang.Object key, java.lang.Object data)

Methods inherited from class com.yworks.yfiles.server.graphml.flexio.AbstractInputHandlerProvider

onQueryInputHandler

Methods inherited from class y.io.graphml.input.AbstractInputHandler

applyDefault, getDefaultValue, getPrecedence, getValidScopes, initializeFromKeyDefinition, isDefaultExists, isParseDefaultValue, parseData, setDefaultExists, setDefaultValue, setParseDefaultValue, setPrecedence, setValidScopes

Methods inherited from class java.lang.Object

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

Constructor Detail

LabelInputHandler

public LabelInputHandler(KeyScope scope,
                         java.lang.Object dpKey)

Method Detail

acceptKey

public boolean acceptKey(org.w3c.dom.Element keyDefinition)

Description copied from class: AbstractInputHandlerProvider

This method is called by AbstractInputHandlerProvider.onQueryInputHandler(y.io.graphml.input.QueryInputHandlersEvent) and shall decide if the given keyDefinition shall be accepted so that this input handler gets provided for the event.

Specified by:

acceptKey in class AbstractInputHandlerProvider

Parameters:

keyDefinition - The key definition to check.

Returns:

true, if the key name matches Constants.ATTR_NAME_LABELLIST and the key scope matches the one passed to the constructor.

parseDataCore

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

Throws:

GraphMLParseException

setValue

protected void setValue(GraphMLParseContext context,
                        java.lang.Object key,
                        java.lang.Object data)
                 throws GraphMLParseException

Throws:

GraphMLParseException