public interface UserDataHandler
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 the Document Object Model (DOM) Level 3 Core Specification.
|Modifier and Type||Field and Description|
The node is adopted, using
The node is cloned, using
The node is deleted.
The node is imported, using
The node is renamed, using
static final short NODE_CLONED
static final short NODE_IMPORTED
static final short NODE_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.
static final short NODE_RENAMED
static final short NODE_ADOPTED
UserDataHandler. The effect of throwing exceptions from the handler is DOM implementation dependent.
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
nullwhen the node is being deleted.
dst- Specifies the node newly created if any, or
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