/*
* 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.
*/
package org.apache.felix.shell.remote;


/**
 * Provides an atomic integer.
 */
class AtomicInteger
{

    private int m_Value;


    public AtomicInteger()
    {
        m_Value = 0;
    }//constructor


    /**
     * Constructs a new <tt>AtomicInteger</tt>
     * with a given initial value.
     *
     * @param value the initial value.
     */
    public AtomicInteger( int value )
    {
        m_Value = value;
    }//constructor


    /**
     * Increments this <tt>AtomicInteger</tt> by one.
     *
     * @return the resulting value.
     */
    public synchronized int increment()
    {
        return ++m_Value;
    }//increment


    /**
     * Decrements this <tt>AtomicInteger</tt> by one.
     *
     * @return the resulting value.
     */
    public synchronized int decrement()
    {
        return --m_Value;
    }//decrement


    /**
     * Sets the value of this <tt>AtomicInteger</tt>.
     *
     * @param i the new value.
     */
    public synchronized void set( int i )
    {
        m_Value = i;
    }//set


    /**
     * Returns the value of this <tt>AtomicInteger</tt>.
     *
     * @return the actual value.
     */
    public synchronized int get()
    {
        return m_Value;
    }//get

}//class AtomicInteger