Eclipse GMF Guide (Galileo) - SelectionTransfer (Eclipse GMF Documentation)

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org.eclipse.gmf.runtime.common.ui.services.dnd.core
Class SelectionTransfer

java.lang.Object
  

org.eclipse.swt.dnd.Transfer
      

org.eclipse.swt.dnd.ByteArrayTransfer
          
org.eclipse.gmf.runtime.common.ui.services.dnd.core.SelectionTransfer

public final class SelectionTransfer
extends ByteArrayTransfer
extends ByteArrayTransfer

This class can be used to transfer a ISelection between two parts in a workbench in a drag and drop operation. This class does not marshall the data.

Method Summary

static SelectionTransfer getInstance ()
          Return the singleton.

ISelection getSelection ()
          Returns the selection.

protected int[] getTypeIds ()
          Returns the type ids supported by this agent

protected java.lang.String[] getTypeNames ()
          Returns the type names supported by this agent

void javaToNative (java.lang.Object object, TransferData transferData)
          Converts the TYPE_NAME into a byte[]

java.lang.Object nativeToJava ( TransferData transferData)
          Retrieves the byte[] associated with TYPE_NAME.

void setSelection ( ISelection aSelection)
          Sets the selection.

Methods inherited from class org.eclipse.swt.dnd. ByteArrayTransfer

getSupportedTypes, isSupportedType

Methods inherited from class org.eclipse.swt.dnd. Transfer

registerType, validate

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static 
SelectionTransfer getInstance()

Return the singleton.

Returns:: the singleton instance of the SelectionTransfer class

javaToNative

public void javaToNative(java.lang.Object object,
                         
TransferData transferData)

Converts the TYPE_NAME into a byte[]

Overrides:: javaToNative in class ByteArrayTransfer

See Also:: Transfer.javaToNative(java.lang.Object, org.eclipse.swt.dnd.TransferData)

nativeToJava

public java.lang.Object nativeToJava(
TransferData transferData)

Retrieves the byte[] associated with TYPE_NAME. Verifies it is the same as the TYPE_NAME and then returns the selection.

Overrides:: nativeToJava in class ByteArrayTransfer

Returns:: Object
See Also:: Transfer.nativeToJava(org.eclipse.swt.dnd.TransferData)

getTypeIds

protected int[] getTypeIds()

Returns the type ids supported by this agent

Specified by:: getTypeIds in class Transfer

Returns:: int[]
See Also:: Transfer.getTypeIds()

getTypeNames

protected java.lang.String[] getTypeNames()

Returns the type names supported by this agent

Specified by:: getTypeNames in class Transfer

Returns:: String[]
See Also:: Transfer.getTypeNames()

getSelection

public 
ISelection getSelection()

Returns the selection.

Returns:: selection

setSelection

public void setSelection(
ISelection aSelection)

Sets the selection.

Parameters:: aSelection - The selection to set