/*
 * Copyright 2003,2004 The Apache Software Foundation.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * $Id: XSNamedMap.c 191054 2005-06-17 02:56:35Z jberry $
 */


// ---------------------------------------------------------------------------
//  Include
// ---------------------------------------------------------------------------
#if defined(XERCES_TMPLSINC)
#include <xercesc/framework/psvi/XSNamedMap.hpp>
#endif

#include <xercesc/util/RefVectorOf.hpp>
#include <xercesc/util/StringPool.hpp>

XERCES_CPP_NAMESPACE_BEGIN

// ---------------------------------------------------------------------------
//  XSNamedMap: Constructors and Destructor
// ---------------------------------------------------------------------------
template <class TVal>
XSNamedMap<TVal>::XSNamedMap(const unsigned int maxElems,
                             const unsigned int modulus,
                             XMLStringPool* uriStringPool,
                             const bool adoptElems,
                             MemoryManager* const manager) 
    : fMemoryManager(manager) 
    , fURIStringPool(uriStringPool)
{
    // allow one of the Vector or Hash to own the data... but not both...
    fVector = new (manager) RefVectorOf<TVal> (maxElems, false, manager);
    fHash = new (manager) RefHash2KeysTableOf<TVal> (modulus, adoptElems, manager);
}
template <class TVal> XSNamedMap<TVal>::~XSNamedMap()
{
    delete fVector;
    delete fHash;
}


/**
 * The number of <code>XSObjects</code> in the <code>XSObjectList</code>. 
 * The range of valid child object indices is 0 to 
 * <code>mapLength-1</code> inclusive. 
 */
template <class TVal> 
unsigned int XSNamedMap<TVal>::getLength()
{
    return fVector->size();
}

/**
 * Returns the <code>index</code>th item in the collection. The index 
 * starts at 0. If <code>index</code> is greater than or equal to the 
 * number of objects in the list, this returns <code>null</code>. 
 * @param index  index into the collection. 
 * @return  The <code>XSObject</code> at the <code>index</code>th 
 *   position in the <code>XSObjectList</code>, or <code>null</code> if 
 *   that is not a valid index. 
 */
template <class TVal> 
TVal* XSNamedMap<TVal>::item(unsigned int index)
{
    if (index >= fVector->size()) 
    {
        return 0;
    }
    return fVector->elementAt(index);
}

/**
 * Retrieves a component specified by local name and namespace URI.
 * <br>applications must use the value null as the 
 * <code>compNamespace</code> parameter for components whose targetNamespace property
 * is absent.
 * @param compNamespace The namespace URI of the component to retrieve.
 * @param localName The local name of the component to retrieve.
 * @return A component (of any type) with the specified local 
 *   name and namespace URI, or <code>null</code> if they do not 
 *   identify any node in this map.
 */
template <class TVal> 
TVal *XSNamedMap<TVal>::itemByName(const XMLCh *compNamespace, 
                          const XMLCh *localName)
{
    return fHash->get((void*)localName, fURIStringPool->getId(compNamespace));
}


template <class TVal>
void XSNamedMap<TVal>::addElement(TVal* const toAdd, const XMLCh* key1, const XMLCh* key2)
{
    fVector->addElement(toAdd);
    fHash->put((void*)key1, fURIStringPool->getId(key2), toAdd);
}

XERCES_CPP_NAMESPACE_END
