/*
 * Copyright (c) Michael Thomas, All Rights Reserved. (michael@michael-thomas.com) 
 *
 * Permission to use, copy, modify, and distribute this software
 * and its documentation for NON-COMMERCIAL purposes and without
 * fee is hereby granted provided that this copyright notice
 * appears in all copies. Exceptions must be in writing between the 
 * copyright holder and entity using the content.
 *
 * THE COPYRIGHT HOLDER MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
 * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
 * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. THE COPYRIGHT HOLDER SHALL NOT BE LIABLE FOR
 * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
 * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
 */

/**
 * @author  Michael Thomas
 * @version 1.0 07/04/08
 */

package firststeps;

public class ThreadsHelloWorldSyncSetGet_HoldValue {

	private String strHoldValue;
    private boolean blnValueReadyForGet = false;
    private boolean blnFinished = false;

	public synchronized String getSyncValue() throws InterruptedException {
    	//If the methods was not "synchronized" at run time a java.lang.IllegalMonitorStateException will be thrown.
		while (blnValueReadyForGet == false) {
            try {
            	wait();
            } catch (InterruptedException e) { 
            	if ( isBlnFinished() ) {
            		throw new InterruptedException();
            	}
            }
        }

		blnValueReadyForGet = false;
        notifyAll();
        return getStrHoldValue();
    }

    public synchronized void setSyncValue(String strPutValue) {
    	//If the methods was not "synchronized" at run time a java.lang.IllegalMonitorStateException will be thrown.
        while (blnValueReadyForGet == true) {
            try {
                wait();
            } catch (InterruptedException e) { }
        }
        setStrHoldValue(strPutValue);
        blnValueReadyForGet = true;
        notifyAll();
    }

    //Getters and Setters - public.
    
    public boolean isBlnFinished() {
		return blnFinished;
	}

    public synchronized void setBlnFinished(boolean blnFinished) {
		this.blnFinished = blnFinished;
	}

    //Getters and Setters - private because we use the sync'ed methods to set & get.
    private String getStrHoldValue() {
		return strHoldValue;
	}

	private void setStrHoldValue(String strHoldValue) {
		this.strHoldValue = strHoldValue;
	}

}