/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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.
 */
#if !defined(PREFIXRESOLVER_HEADER_GUARD_1357924680)
#define PREFIXRESOLVER_HEADER_GUARD_1357924680



// Base include file.  Must be first.
#include <xalanc/PlatformSupport/PlatformSupportDefinitions.hpp>


XALAN_CPP_NAMESPACE_BEGIN



class XalanDOMString;



/**
 * This class defines an interface for classes that resolve namespace prefixes
 * to their URIs 
 */
class XALAN_PLATFORMSUPPORT_EXPORT PrefixResolver
{
public:


    PrefixResolver();

    PrefixResolver(const PrefixResolver&);

    virtual
    ~PrefixResolver();

    /**
     * Retrieve a namespace corresponding to a prefix.  This assumes that 
     * the PrevixResolver holds its own namespace context, or is a namespace
     * context itself.
     *
     * @param prefix Prefix to resolve
     * @return namespace that prefix resolves to, or null if prefix is not found
     */
    virtual const XalanDOMString*
    getNamespaceForPrefix(const XalanDOMString&     prefix) const = 0;

    /**
     * Retrieve the base URI for the resolver.
     * 
     * @return URI string
     */
    virtual const XalanDOMString&
    getURI() const = 0;
};



XALAN_CPP_NAMESPACE_END



#endif  // PREFIXRESOLVER_HEADER_GUARD_1357924680
