- 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
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
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transferable
protected Transferable transferable
The encapsulatedTransferableobject.
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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
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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:
getTransferDataFlavorsin interfaceTransferable- Returns:
- an array of data flavors in which the data can be provided by the encapsulated transferable
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isDataFlavorSupported
public boolean isDataFlavorSupported(DataFlavor flavor)
Returns whether or not the specified data flavor is supported by the encapsulated transferable.- Specified by:
isDataFlavorSupportedin interfaceTransferable- Parameters:
flavor- the requested flavor for the data- Returns:
trueif the data flavor is supported,falseotherwise
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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:
getTransferDatain interfaceTransferable- 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()
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Document created the 11/06/2005, last modified the 04/03/2020
Source of the printed document:https://www.gaudry.be/en/java-api-rf-java/awt/dnd/droptargetcontext.transferableproxy.html
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References
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