y.io.graphml.input
Class AbstractDeserializer

java.lang.Object
  y.io.graphml.input.AbstractDeserializer

All Implemented Interfaces:

EventListener, DeserializationHandler

Direct Known Subclasses:

NameBasedDeserializer

public abstract class AbstractDeserializer
extends Object
implements DeserializationHandler

Convenience base class for implementations of DeserializationEvent

Constructor Summary

AbstractDeserializer()

Method Summary

abstract boolean	canHandle(DeserializationEvent e) Predicate member method to determine whether this instance should react to a given DeserializationEvent.
abstract Object	deserializeNode(Node xmlNode, GraphMLParseContext context) Actually perform the deserialization for the given arguments.
void	onHandleDeserialization(DeserializationEvent event) Listen to a serialization event.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractDeserializer

public AbstractDeserializer()

Method Detail

onHandleDeserialization

public void onHandleDeserialization(DeserializationEvent event)
                             throws GraphMLParseException

Listen to a serialization event. This implementation checks if canHandle(DeserializationEvent) returns true for the supplied event argument, in which case it calls deserializeNode(Node,GraphMLParseContext) and sets DeserializationEvent.setResult(Object).
If canHandle(DeserializationEvent) returns false, no action is performed.

Specified by:

onHandleDeserialization in interface DeserializationHandler

Throws:

GraphMLParseException - if something went wrong in the serialization process.

Parameters:

event - The event to handle

deserializeNode

public abstract Object deserializeNode(Node xmlNode,
                                       GraphMLParseContext context)
                                throws GraphMLParseException

Actually perform the deserialization for the given arguments. This method is called from onHandleDeserialization(DeserializationEvent) if canHandle(DeserializationEvent) returns true.

Throws:

GraphMLParseException

Parameters:

xmlNode - The xml Node to parse.

context - The current parse context.

Returns:

The deserialized value of xmlNode.

canHandle

public abstract boolean canHandle(DeserializationEvent e)

Predicate member method to determine whether this instance should react to a given DeserializationEvent.

Parameters:

e - The event data.

Returns:

true iff this instance should handle the event.