Class DropTargetContext.TransferableProxy
- java.lang.Object
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- java.awt.dnd.DropTargetContext.TransferableProxy
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- All Implemented Interfaces:
- Transferable
- Enclosing class:
- DropTargetContext
protected class DropTargetContext.TransferableProxy extends Object implements Transferable
TransferableProxyis a helper inner class that implementsTransferableinterface and serves as a proxy for anotherTransferableobject 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.
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Field Summary
Fields Modifier and Type Field and Description protected booleanisLocalAbooleanindicating if the encapsulatedTransferableobject represents the result of local drag-n-drop operation (within the same JVM).protected TransferabletransferableThe encapsulatedTransferableobject.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method and Description ObjectgetTransferData(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.booleanisDataFlavorSupported(DataFlavor flavor)Returns whether or not the specified data flavor is supported by the encapsulated transferable.
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Field Detail
transferable
protected Transferable transferable
The encapsulatedTransferableobject.
isLocal
protected boolean isLocal
Abooleanindicating if the encapsulatedTransferableobject represents the result of local drag-n-drop operation (within the same JVM).
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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:
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getTransferDataFlavorsin interfaceTransferable - 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:
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isDataFlavorSupportedin interfaceTransferable - Parameters:
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flavor- the requested flavor for the data - Returns:
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trueif the data flavor is supported,falseotherwise
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:
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getTransferDatain interfaceTransferable - Parameters:
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df- the requested flavor for the data - Throws:
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IOException- if the data is no longer available in the requested flavor. -
UnsupportedFlavorException- if the requested data flavor is not supported. - See Also:
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DataFlavor.getRepresentationClass()
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