de.fhg.igd.ui
Class ObjectSelection

java.lang.Object
  de.fhg.igd.ui.ObjectSelection

All Implemented Interfaces:

Transferable

public class ObjectSelection

extends Object

implements Transferable

Represents a serialised object that is transfered e.g. by drag & drop.

Author:

Volker Roth "$Id: ObjectSelection.java 1913 2007-08-08 02:41:53Z jpeters $"

Field Summary

private String	className_ The name of the class that is tranferred.
private DataFlavor	flavor_ The DataFlavor of this Transferable .
private byte[]	obj_ The serialized object graph.

Constructor Summary

ObjectSelection(Object o)
Creates an instance with the given object.

Method Summary

Object	getTransferData(DataFlavor flavor) Deserializes and returns the embedded data object.
DataFlavor[]	getTransferDataFlavors() This Transferable supports only serialized object data flavor types.
boolean	isDataFlavorSupported(DataFlavor flavor) This transferable supports only serialized object data flavor types.

Methods inherited from class java.lang.Object

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

Field Detail

obj_

private byte[] obj_

The serialized object graph.

className_

private String className_

The name of the class that is tranferred.

flavor_

private DataFlavor flavor_

The DataFlavor of this Transferable .

Constructor Detail

ObjectSelection

public ObjectSelection(Object o)
                throws IOException,
                       NotSerializableException,
                       InvalidClassException

Creates an instance with the given object. The given object must be serializable.

Parameters:

o - The content object.

Method Detail

getTransferDataFlavors

public DataFlavor[] getTransferDataFlavors()

This Transferable supports only serialized object data flavor types.

Specified by:

getTransferDataFlavors in interface Transferable

Returns:

an array with one element, which is of a serialized object data flavor type.

isDataFlavorSupported

public boolean isDataFlavorSupported(DataFlavor flavor)

This transferable supports only serialized object data flavor types.

Specified by:

isDataFlavorSupported in interface Transferable

Returns:

true if the given data flavor is not null and is a serialized object type.

getTransferData

public Object getTransferData(DataFlavor flavor)
                       throws UnsupportedFlavorException,
                              IOException

Deserializes and returns the embedded data object.

Specified by:

getTransferData in interface Transferable

Returns:

The deserialized data object.

Throws:

IOException - if the object cannot be deserialized for some reason.

UnsupportedFlavorException - if the given flavor is not supported. In other words, if the given flavor is not a serialized object flavor type.