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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.
*/
/* $Rev$ $Date$ */
#ifndef _REFCOUNTINGOBJECT_H
#define _REFCOUNTINGOBJECT_H
#include "commonj/sdo/export.h"
#include <iostream>
namespace commonj {
namespace sdo {
/**
* RefcountingObject is the base class for all objects in SDO
* These objects keep a count of references to themselves, then
* free themselves when they are unused.
*/
class RefCountingObject
{
public:
SDO_API RefCountingObject();
SDO_API RefCountingObject(const RefCountingObject& rc);
SDO_API RefCountingObject& operator=(const RefCountingObject& rc);
SDO_API virtual ~RefCountingObject() = 0;
/**
* Add to the reference count - a new pointer has been created.
*/
SDO_API void addRef();
/**
* Subtract from the the reference count - a reference has dropped.
*/
SDO_API void releaseRef();
/**
* Print contents to stream
*/
SDO_API virtual std::ostream& printSelf(std::ostream &os);
private:
unsigned int refCount;
static long allObs;
};
};
};
#endif
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