SimpleRegister.java

/***
 * Copyright 2002-2010 jamod development team
 *
 * Licensed 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 net.wimpi.modbus.procimg;

/**
 * Class implementing a simple <tt>Register</tt>.
 * <p>
 * The <tt>setValue()</tt> method is synchronized,
 * which ensures atomic access, but no specific access order.
 *
 * @author Dieter Wimberger
 * @version @version@ (@date@)
 */
public class SimpleRegister extends SynchronizedAbstractRegister implements Register {

    /**
     * Constructs a new <tt>SimpleRegister</tt> instance.
     * Its state will be invalid.
     */
    public SimpleRegister() {
        m_Register = null;
    }// constructor

    /**
     * Constructs a new <tt>SimpleRegister</tt> instance.
     *
     * @param b1 the first (hi) byte of the word.
     * @param b2 the second (low) byte of the word.
     */
    public SimpleRegister(byte b1, byte b2) {
        m_Register[0] = b1;
        m_Register[1] = b2;
    }// constructor

    /**
     * Constructs a new <tt>SimpleRegister</tt> instance
     * with the given value.
     *
     * @param value the value of this <tt>SimpleRegister</tt>
     *            as <tt>int</tt>.
     */
    public SimpleRegister(int value) {
        setValue(value);
    }// constructor(int)

}// SimpleInputRegister