Java 2 Platform SE v1.3.1: Class StringSelection - JDK 5 Documentation v1.3.1, Java 2 SDK 英文文档

java.awt.datatransfer
Class StringSelection

java.lang.Object
  |
  +--java.awt.datatransfer.StringSelection

All Implemented Interfaces:

ClipboardOwner, Transferable

public class StringSelection

extends Object

implements Transferable, ClipboardOwner

A Transferable which implements the capability required to transfer a String. This Transferable properly supports DataFlavor.stringFlavor and all equivalent flavors. Support for DataFlavor.plainTextFlavor and all equivalent flavors is deprecated. No other DataFlavors are supported.

See Also:

java.awt.datatransfer.DataFlavor.stringFlavor, java.awt.datatransfer.DataFlavor.plainTextFlavor

Constructor Summary

StringSelection(String data)           Creates a Transferable capable of transferring the specified String.

 

Method Summary
Object	getTransferData(DataFlavor flavor)           Returns the Transferable's data in the requested DataFlavor if possible.
DataFlavor[]	getTransferDataFlavors()           Returns an array of flavors in which this Transferable can provide the data.
boolean	isDataFlavorSupported(DataFlavor flavor)           Returns whether the requested flavor is supported by this Transferable.
void	lostOwnership(Clipboard clipboard, Transferable contents)           Notifies this object that it is no longer the owner of the contents of the clipboard.

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

StringSelection

public StringSelection(String data)

Creates a Transferable capable of transferring the specified String.

getTransferDataFlavors

public DataFlavor[] getTransferDataFlavors()

Returns an array of flavors in which this Transferable can provide the data. DataFlavor.stringFlavor is properly supported. Support for DataFlavor.plainTextFlavor is deprecated.

Specified by:

getTransferDataFlavors in interface Transferable

Returns:

an array of length two, whose elements are DataFlavor. stringFlavor and DataFlavor.plainTextFlavor.

isDataFlavorSupported

public boolean isDataFlavorSupported(DataFlavor flavor)

Returns whether the requested flavor is supported by this Transferable.

Specified by:

isDataFlavorSupported in interface Transferable

Parameters:

flavor - the requested flavor for the data

Returns:

true if flavor is equal to DataFlavor.stringFlavor or DataFlavor.plainTextFlavor; false if flavor is not one of the above flavors

Throws:

NullPointerException - if flavor is null

getTransferData

public Object getTransferData(DataFlavor flavor)
                       throws UnsupportedFlavorException,
                              IOException

Returns the Transferable's data in the requested DataFlavor if possible. If the desired flavor is DataFlavor.stringFlavor, or an equivalent flavor, the String representing the selection is returned. If the desired flavor is DataFlavor.plainTextFlavor , or an equivalent flavor, a Reader is returned. Note: The behavior of this method for DataFlavor.plainTextFlavor and equivalent DataFlavors is inconsistent with the definition of DataFlavor.plainTextFlavor.

Specified by:

getTransferData in interface Transferable

Parameters:

flavor - the requested flavor for the data

Returns:

the data in the requested flavor, as outlined above.

Throws:

UnsupportedFlavorException - if the requested data flavor is not equivalent to either DataFlavor.stringFlavor or DataFlavor.plainTextFlavor.

IOException - if an IOException occurs while retrieving the data. By default, StringSelection never throws this exception, but a subclass may.

NullPointerException - if flavor is null

See Also:

Reader

public void lostOwnership(Clipboard clipboard,
                          Transferable contents)