DropTargetContext.TransferableProxy (Java 2 Platform SE 5.0) (original) (raw)

java.lang.Object extended by java.awt.dnd.DropTargetContext.TransferableProxy

All Implemented Interfaces:

Enclosing class:

protected class DropTargetContext.TransferableProxy

TransferableProxy is a helper inner class that implementsTransferable 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](../../../java/lang/Object.html#wait%28long, int%29)

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](../../../java/awt/datatransfer/Transferable.html#getTransferDataFlavors%28%29) in interface [Transferable](../../../java/awt/datatransfer/Transferable.html "interface in java.awt.datatransfer")

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](../../../java/awt/datatransfer/Transferable.html#isDataFlavorSupported%28java.awt.datatransfer.DataFlavor%29) in interface [Transferable](../../../java/awt/datatransfer/Transferable.html "interface in java.awt.datatransfer")

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](../../../java/awt/datatransfer/Transferable.html#getTransferData%28java.awt.datatransfer.DataFlavor%29) in interface [Transferable](../../../java/awt/datatransfer/Transferable.html "interface in java.awt.datatransfer")

Parameters:

df - the requested flavor for the data

Throws:

[IOException](../../../java/io/IOException.html "class in java.io") - if the data is no longer available in the requested flavor.

[UnsupportedFlavorException](../../../java/awt/datatransfer/UnsupportedFlavorException.html "class in java.awt.datatransfer") - if the requested data flavor is not supported.

See Also:

DataFlavor.getRepresentationClass()

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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.