Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class DropTargetContext.TransferableProxy - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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java.awt.dnd
Class DropTargetContext.TransferableProxy

java.lang.Object
  |
  +--java.awt.dnd.DropTargetContext.TransferableProxy

Enclosing class:: DropTargetContext

protected class DropTargetContext.TransferableProxy
extends Object
implements Transferable

The TransferableProxy is a nested helper class that supports the DropTargetContext in managing the transfer of data. In particular it provides automatic support for the de-serialization of application/x-java-serialized-object DatFlavors.

Field Summary

protected boolean isLocal
          A boolean indicating if the DragSource is in the same JVM as the DropTarget.

protected Transferable transferable
          The "actual" Transferable that the Proxy is a Proxy for, usually supplied from the underlying system.

Method Summary

Object getTransferData(DataFlavor df)
          get the transfer data

DataFlavor[] getTransferDataFlavors()
          get the flavors

boolean isDataFlavorSupported(DataFlavor flavor)
          check if a particular flavor is supported?

Methods inherited from class java.lang.Object

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

Field Detail

transferable

protected Transferable transferable

The "actual" Transferable that the Proxy is a Proxy for, usually supplied from the underlying system.

isLocal

protected boolean isLocal

A boolean indicating if the DragSource is in the same JVM as the DropTarget.

Method Detail

getTransferDataFlavors

public DataFlavor[] getTransferDataFlavors()

get the flavors

Specified by:: getTransferDataFlavors in interface Transferable

Returns:: the DataFlavor array

isDataFlavorSupported

public boolean isDataFlavorSupported(DataFlavor flavor)

check if a particular flavor is supported?

Specified by:: isDataFlavorSupported in interface Transferable

Parameters:: flavor - the DataFlavor
Returns:: a boolean indicating if the specified DataFlavor is supported.

getTransferData

public Object getTransferData(DataFlavor df)
                       throws UnsupportedFlavorException,
                              IOException

get the transfer data

Specified by:: getTransferData in interface Transferable

Parameters:: df - the DataFlavor
Returns:: the Object
Throws:: UnsupportedFlavorException - if the requested DataFlavor is not supported.; IOException - if the data is no longer available in the requested flavor.