src/main/decaf/nio/Buffer.h

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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.
 */

#ifndef _DECAF_NIO_BUFFER_H_
#define _DECAF_NIO_BUFFER_H_

#include <decaf/lang/exceptions/IllegalArgumentException.h>
#include <decaf/nio/InvalidMarkException.h>

namespace decaf{
namespace nio{

    class DECAF_API Buffer {
    protected:

        mutable int _position;
        int _capacity;
        int _limit;
        int _mark;
        bool _markSet;

    public:

        Buffer( int capactiy );
        Buffer( const Buffer& other );
        virtual ~Buffer() {}

    public:

        virtual int capacity() const {
            return this->_capacity;
        }

        virtual int position() const {
            return this->_position;
        }

        virtual Buffer& position( int newPosition );

        virtual int limit() const {
            return this->_limit;
        }

        virtual Buffer& limit( int newLimit );

        virtual Buffer& mark();

        virtual Buffer& reset();

        virtual Buffer& clear();

        virtual Buffer& flip();

        virtual Buffer& rewind();

        virtual int remaining() const {
            return _limit - _position;
        }

        virtual bool hasRemaining() const {
            return remaining() != 0;
        }

        virtual bool isReadOnly() const = 0;

    };

}}

#endif /*_DECAF_NIO_BUFFER_H_*/