XalanReferenceCountedObject.hpp

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/*
 * 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(XALANREFERENCECOUNTEDOBJECT_HEADER_GUARD_1357924680)
#define XALANREFERENCECOUNTEDOBJECT_HEADER_GUARD_1357924680
 
 
 
// Base include file.  Must be first.
#include <xalanc/PlatformSupport/PlatformSupportDefinitions.hpp>
 
 
 
namespace XALAN_CPP_NAMESPACE {
 
 
 
/**
 * Class to hold reference count information.
 */
class XALAN_PLATFORMSUPPORT_EXPORT XalanReferenceCountedObject
{
public:
 
    /**
     * Increment reference count.    
     */
    static void
    addReference(XalanReferenceCountedObject*   theInstance);
 
    /**
     * Decrement reference count.    
     */
    static void
    removeReference(XalanReferenceCountedObject*    theInstance);
 
protected:
 
    /**
     * Create a XalanReferenceCountedObject.
     */
    explicit
    XalanReferenceCountedObject();
 
    virtual
    ~XalanReferenceCountedObject();
 
    virtual void 
    referenced() = 0;
 
    virtual void 
    dereferenced() = 0;
 
    virtual XalanSize_t
    getReferenceCount() const
    {
        return m_referenceCount;
    }
 
private:
 
    XalanSize_t     m_referenceCount;
 
    // Not implemented...
    XalanReferenceCountedObject&
    operator=(const XalanReferenceCountedObject&);
 
    XalanReferenceCountedObject(const XalanReferenceCountedObject&);
};
 
 
 
}
 
 
 
#endif  // XALANREFERENCECOUNTEDOBJECT_HEADER_GUARD_1357924680