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public interface UserDataHandlerNode.setUserData() the application can provide a handler
that gets called when the node the object is associated to is being
cloned, imported, or renamed. This can be used by the application to
implement various behaviors regarding the data it associates to the DOM
nodes. This interface defines that handler.
See also the Document Object Model (DOM) Level 3 Core Specification.
Field Summary | |
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public static final short NODE_ADOPTED
The node is adopted, usingDocument.adoptNode().
- Field Value:
- 5
public static final short NODE_CLONED
The node is cloned, usingNode.cloneNode().
- Field Value:
- 1
public static final short NODE_DELETED
The node is deleted.Note: This may not be supported or may not be reliable in certain environments, such as Java, where the implementation has no real control over when objects are actually deleted.
- Field Value:
- 3
public static final short NODE_IMPORTED
The node is imported, usingDocument.importNode().
- Field Value:
- 2
public static final short NODE_RENAMED
The node is renamed, usingDocument.renameNode().
- Field Value:
- 4
public void handle(short operation, String key, Object data, Node src, Node dst)
This method is called whenever the node for which this handler is registered is imported or cloned.
DOM applications must not raise exceptions in aUserDataHandler. The effect of throwing exceptions from the handler is DOM implementation dependent.
- Parameters:
operation- Specifies the type of operation that is being performed on the node.key- Specifies the key for which this handler is being called.data- Specifies the data for which this handler is being called.src- Specifies the node being cloned, adopted, imported, or renamed. This isnullwhen the node is being deleted.dst- Specifies the node newly created if any, ornull.