/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Charles Reich
*/
package com.caucho.quercus.lib.simplexml;
import com.caucho.quercus.annotation.ReturnNullAsFalse;
import com.caucho.quercus.env.Env;
import com.caucho.quercus.env.NullValue;
import com.caucho.quercus.env.QuercusClass;
import com.caucho.quercus.env.StringValue;
import com.caucho.quercus.env.Value;
/**
* SimpleXMLElement object oriented API facade.
* Also acts as the DOM document.
*/
public class SimpleXMLChildren extends SimpleXMLElement
{
protected SimpleXMLChildren(Env env, QuercusClass cls,
SimpleXMLElement parent, String name)
{
super(env, cls, parent, name);
}
/**
* Implementation for getting the indices of this class.
* i.e. <code>$a->foo[0]</code>
*/
@Override
public Value __get(Env env, Value indexV)
{
if (indexV.isString()) {
String name = indexV.toString();
return wrapJava(env, _cls, getAttribute(name));
}
else if (indexV.isLongConvertible()) {
int i = indexV.toInt();
if (_children != null && i < _children.size())
return wrapJava(env, _cls, _children.get(i));
else
return NullValue.NULL;
}
else
return NullValue.NULL;
}
/**
* Converts node tree to a valid xml string.
*
* @return xml string
*/
@ReturnNullAsFalse
public StringValue asXML(Env env)
{
if (_children != null)
return _children.get(0).toXML(env);
else
return null;
}
}