org.writersforge.catalan.transform.xform
Class DeleteProcessor

java.lang.Object
  org.writersforge.catalan.transform.BaseNodeProcessor
      org.writersforge.catalan.transform.xform.XFormProcessor
          org.writersforge.catalan.transform.xform.DeleteProcessor

All Implemented Interfaces:

org.writersforge.bellows.traverse.NodeProcessor

public class DeleteProcessor

extends XFormProcessor

A Datum-only NodeProcessor for deleting existing XML content to other parts of the same XML tree. Works on element content or on attributes.

Author:

jsheets

Constructor Summary

DeleteProcessor(org.writersforge.bellows.Datum xml)
Creates a new instance of DeleteProcessor from the XML spec.

DeleteProcessor(java.lang.String query, java.lang.String attribute)
Creates a new instance of DeleteProcessor.

Method Summary

protected org.writersforge.bellows.Datum

transformNode(org.writersforge.bellows.Datum node, org.writersforge.bellows.Datum root) Performs an in-place transformation on the supplied Datum tree.

Methods inherited from class org.writersforge.catalan.transform.xform.XFormProcessor

getQuery, getQueryNodes, processNode

Methods inherited from class org.writersforge.catalan.transform.BaseNodeProcessor

addLeftover, end, getLeftovers, getNodes, start

Methods inherited from class java.lang.Object

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

Constructor Detail

DeleteProcessor

public DeleteProcessor(org.writersforge.bellows.Datum xml)

Creates a new instance of DeleteProcessor from the XML spec.

Parameters:

xml - XML initializing spec

DeleteProcessor

public DeleteProcessor(java.lang.String query,
                       java.lang.String attribute)

Creates a new instance of DeleteProcessor. If attribute is null, the processor will remove (recursively) at the element level. If attribute is set, the processor will remove only matching attributes.

Parameters:

query - Bellows query path to select the source node(s)

attribute - optional attribute name

Method Detail

transformNode

protected org.writersforge.bellows.Datum transformNode(org.writersforge.bellows.Datum node,
                                                       org.writersforge.bellows.Datum root)

Performs an in-place transformation on the supplied Datum tree.

Specified by:

transformNode in class XFormProcessor

Parameters:

node - the current node to operate upon

root - the root of the entire XML tree

Returns:

the new root Datum object (usually the same one)