Package org.eclipse.ui.part
Class PluginTransfer
- java.lang.Object
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- org.eclipse.swt.dnd.Transfer
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- org.eclipse.swt.dnd.ByteArrayTransfer
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- org.eclipse.ui.part.PluginTransfer
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public class PluginTransfer extends ByteArrayTransfer
This class can be used to transfer an instance ofPluginTransferDatabetween two parts in a workbench in a drag and drop operation.In every drag and drop operation there is a
DragSourceand aDropTarget. When a drag occurs aTransferis used to marshall the drag data from the source into a byte array. If a drop occurs anotherTransferis used to marshall the byte array into drop data for the target.A
PluginTransferDatacontains the id of a drop action extension. If a drop occurs the extension is invoked to perform a drop action. As a benefit, the destination viewer doesn't need to have any knowledge of the items being dropped into it.This class can be used for a
Vieweror an SWT component directly. A singleton is provided which may be serially reused (seegetInstance). It is not intended to be subclassed.- See Also:
StructuredViewer,DropTarget,DragSource
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static PluginTransfergetInstance()Returns the singleton instance.protected int[]getTypeIds()Returns the platform specific ids of the data types that can be converted using this transfer agent.protected String[]getTypeNames()Returns the platform specific names of the data types that can be converted using this transfer agent.protected voidjavaToNative(Object data, TransferData transferData)This implementation ofjavaToNativeconverts a javabyte[]to a platform specific representation.protected ObjectnativeToJava(TransferData transferData)This implementation ofnativeToJavaconverts a platform specific representation of a byte array to a javabyte[].-
Methods inherited from class org.eclipse.swt.dnd.ByteArrayTransfer
getSupportedTypes, isSupportedType
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Methods inherited from class org.eclipse.swt.dnd.Transfer
registerType, validate
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Method Detail
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getInstance
public static PluginTransfer getInstance()
Returns the singleton instance.- Returns:
- the singleton instance
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getTypeIds
protected int[] getTypeIds()
Description copied from class:TransferReturns the platform specific ids of the data types that can be converted using this transfer agent.- Specified by:
getTypeIdsin classTransfer- Returns:
- the platform specific ids of the data types that can be converted using this transfer agent
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getTypeNames
protected String[] getTypeNames()
Description copied from class:TransferReturns the platform specific names of the data types that can be converted using this transfer agent.- Specified by:
getTypeNamesin classTransfer- Returns:
- the platform specific names of the data types that can be converted using this transfer agent.
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javaToNative
protected void javaToNative(Object data, TransferData transferData)
Description copied from class:ByteArrayTransferThis implementation ofjavaToNativeconverts a javabyte[]to a platform specific representation.- Overrides:
javaToNativein classByteArrayTransfer- Parameters:
data- a javabyte[]containing the data to be convertedtransferData- an emptyTransferDataobject that will be filled in on return with the platform specific format of the data- See Also:
Transfer.nativeToJava(org.eclipse.swt.dnd.TransferData)
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nativeToJava
protected Object nativeToJava(TransferData transferData)
Description copied from class:ByteArrayTransferThis implementation ofnativeToJavaconverts a platform specific representation of a byte array to a javabyte[].- Overrides:
nativeToJavain classByteArrayTransfer- Parameters:
transferData- the platform specific representation of the data to be converted- Returns:
- a java
byte[]containing the converted data if the conversion was successful; otherwise null - See Also:
Transfer.javaToNative(java.lang.Object, org.eclipse.swt.dnd.TransferData)
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