DropTargetContext.TransferableProxy (Java 2 Platform SE v1.4.1_"07")

Overview | Package | Class | Use | Tree | Deprecated | Index | Help

JavaTM 2 Platform
Std. Ed. v1.4.1_"07"

PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

## java.awt.dnd
Class DropTargetContext.TransferableProxy

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

All Implemented Interfaces:
  Transferable

Enclosing class:
  DropTargetContext

protected class DropTargetContext.TransferableProxy
extends Object
implements Transferable

`TransferableProxy` is a helper inner class that implements `Transferable` interface and serves as a proxy for another `Transferable` object which represents data transfer for a particular drag-n-drop operation.

The proxy forwards all requests to the encapsulated transferable and automatically performs additional conversion on the data returned by the encapsulated transferable in case of local transfer.

Field Summary
`protected boolean` | `isLocal` A `boolean` indicating if the encapsulated `Transferable` object represents the result of local drag-n-drop operation (within the same JVM).
`protected Transferable` | `transferable` The encapsulated `Transferable` object.

Method Summary
`Object` | `getTransferData(DataFlavor df)` Returns an object which represents the data provided by the encapsulated transferable for the requested data flavor.
`DataFlavor[]` | `getTransferDataFlavors()` Returns an array of DataFlavor objects indicating the flavors the data can be provided in by the encapsulated transferable.
`boolean` | `isDataFlavorSupported(DataFlavor flavor)` Returns whether or not the specified data flavor is supported by the encapsulated transferable.

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 encapsulated `Transferable` object.

### isLocal

    protected boolean isLocal

  A `boolean` indicating if the encapsulated `Transferable` object represents the result of local drag-n-drop operation (within the same JVM).

Method Detail

### getTransferDataFlavors

    public DataFlavor[] getTransferDataFlavors()

  Returns an array of DataFlavor objects indicating the flavors the data can be provided in by the encapsulated transferable.

  Specified by:
    `getTransferDataFlavors` in interface `Transferable`
  Returns:
    an array of data flavors in which the data can be provided by the encapsulated transferable

### isDataFlavorSupported

    public boolean isDataFlavorSupported(DataFlavor flavor)

  Returns whether or not the specified data flavor is supported by the encapsulated transferable.

  Specified by:
    `isDataFlavorSupported` in interface `Transferable`
  Parameters:
    `flavor` - the requested flavor for the data
  Returns:
    `true` if the data flavor is supported, `false` otherwise

### getTransferData

    public Object getTransferData(DataFlavor df)
                           throws UnsupportedFlavorException,
                                  IOException

  Returns an object which represents the data provided by the encapsulated transferable for the requested data flavor.

  In case of local transfer a serialized copy of the object returned by the encapsulated transferable is provided when the data is requested in application/x-java-serialized-object data flavor.

  Specified by:
    `getTransferData` in interface `Transferable`
  Parameters:
    `df` - the requested flavor for the data
  Throws:
    `IOException` - if the data is no longer available in the requested flavor.
    `UnsupportedFlavorException` - if the requested data flavor is not supported.
  See Also:
    `DataFlavor.getRepresentationClass()`

Overview | Package | Class | Use | Tree | Deprecated | Index | Help

JavaTM 2 Platform
Std. Ed. v1.4.1_"07"

PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

Submit a bug or feature
For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.