UserDataHandler JDK 1.6)

Description

public interface UserDataHandler

When associating an object to a key on a node using Node.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:

Methods

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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.

This method is called whenever the node for which this handler is
registered is imported or cloned.

DOM applications must not raise exceptions in a
UserDataHandler. 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 is null when the node is being deleted.
- dst - Specifies the node newly created if any, or null.

Fields

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publicfinalstatic short NODE_ADOPTED = "5"

The node is adopted, using Document.adoptNode().

publicfinalstatic short NODE_CLONED = "1"

The node is cloned, using Node.cloneNode().

publicfinalstatic short NODE_DELETED = "3"

The node is deleted.

publicfinalstatic short NODE_IMPORTED = "2"

The node is imported, using Document.importNode().

publicfinalstatic short NODE_RENAMED = "4"

The node is renamed, using Document.renameNode().