Xupdate - comment

> Hi there,
>
> I', done with the Rename tag, but I am stuck with the comment tag. I see
> it in connection with the Attribute tag, which should work very similar.
> But in the Attribute statement code I don't see the part, that actually
> does the manipulation. Can somebody give me a hint about how that tag works?
> Rename tag is attached.
> :olli
>
> --
> -----------------------
> oliver charlet
> software development
>
> 11-041 Olsztyn, Poland
>
> [hidden email]
> -----------------------
>
>
>
> /**
>  *  Copyright (C) 2004 Orbeon, Inc.
>  *
>  *  This program is free software; you can redistribute it and/or modify it under the terms of the
>  *  GNU Lesser General Public License as published by the Free Software Foundation; either version
>  *  2.1 of the License, or (at your option) any later version.
>  *
>  *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
>  *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
>  *  See the GNU Lesser General Public License for more details.
>  *
>  *  The full text of the license is available at http://www.gnu.org/copyleft/lesser.html
>  */
> package org.orbeon.oxf.transformer.xupdate.statement;
>
> import java.util.Collections;
> import java.util.Iterator;
>
> import javax.xml.transform.URIResolver;
>
> import org.dom4j.Attribute;
> import org.dom4j.Document;
> import org.dom4j.Element;
> import org.dom4j.Node;
> import org.jaxen.NamespaceContext;
> import org.orbeon.oxf.common.ValidationException;
> import org.orbeon.oxf.transformer.xupdate.DocumentContext;
> import org.orbeon.oxf.transformer.xupdate.Statement;
> import org.orbeon.oxf.transformer.xupdate.VariableContextImpl;
> import org.orbeon.oxf.xml.dom4j.Dom4jUtils;
> import org.orbeon.oxf.xml.dom4j.LocationData;
>
> /**
>  * Implements the xupdate "rename" command.
>  *
>  * @author oliver charlet - [hidden email]
>  *
>  */
> public class Rename extends Statement {
>     private String select;
>     private NamespaceContext namespaceContext;
>     private Statement[] statements;
>
>     public Rename(LocationData locationData, String select, NamespaceContext namespaceContext, Statement[] statements) {
>         super(locationData);
>         this.select = select;
>         this.namespaceContext = namespaceContext;
>         this.statements = statements;
>     }
>
>     public Object execute(URIResolver uriResolver, Object context, VariableContextImpl variableContext, DocumentContext documentContext) {
>         for (Iterator i = Utils.evaluateToList(uriResolver, context, variableContext, getLocationData(), select, namespaceContext, documentContext).iterator(); i.hasNext();) {
>             Object node = i.next();
>             Object toInsert = Utils.execute(uriResolver, node, variableContext, documentContext, statements);
>             if (!(toInsert instanceof String)) {
>                 throw new ValidationException("the content of the rename tag must be text (#PCDATA)", getLocationData());
>             }
>             if (node instanceof Element) {
>                         ((Element)node).setName(toInsert.toString());
>             } else if (node instanceof Document) {
>                 throw new ValidationException("A document node cannot be renamed", getLocationData());
>             } else if (node instanceof Attribute) {
>                         ((Attribute)node).setName(toInsert.toString());
>             } else if (node instanceof org.dom4j.Text) {
>                 throw new ValidationException("A text node cannot be renamed", getLocationData());
>             } else {
>                 throw new ValidationException("Cannot rename a " + node.getClass().getName(), getLocationData());
>             }
>         }
>         return Collections.EMPTY_LIST;
>     }
> }
>
>
>
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