OrderEntry.java example

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/*
 * Copyright 2009-2010 Eric Bruno, Greg Bollella. All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  
 *
 * Neither the name of the Book, 
 * "Real-Time Java Programming with Java RTS"
 * nor the names of its authors may be used to endorse or promote 
 * products derived from this software without specific prior written 
 * permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * See the GNU General Public License version 2 for more details. 
 * You should have received a copy of the GNU General Public License 
 * version 2 along with this work; if not, write to the: 
 * Free Software Foundation, Inc. 
 * 51 Franklin St, Fifth Floor 
 * Boston, MA 02110-1301 USA.
 */
package com.sun.oss.trader.data;

// The OrderEntry class is basically immutable 
// Once you create it, you can't change it
//
public class OrderEntry 
{
	// Private data
	//
    private boolean active;
	private double price;
	private long quantity;
	private StringBuffer symbol;
	private int type;

	// Constructors
	//
	private OrderEntry() { }
	public OrderEntry(StringBuffer s, double p, long q, int t)
	{
//         assert ( OrderType.isValid(t) );
//         assert ( q > 0 );

        price = p;
		quantity = q;
        type = t;
		symbol = new StringBuffer(s);
        active = true;
	}

	// Public methods
	//
	public double getPrice() {
		return price;
	}

	public long getQuantity() {
		return quantity;
	}

	public StringBuffer getSymbol() {
		return symbol;
	}
	
	public int getType() {
		return type;
	}

	public boolean isLimitOrder() {
		return (type == OrderType.LIMIT_BUY || type == OrderType.LIMIT_SELL);
	}
	
	public boolean isStopOrder() {
		return (type == OrderType.STOP_BUY || type == OrderType.STOP_SELL);
	}
	
	public boolean isMarketOrder() {
		return (type == OrderType.MARKET_BUY || type == OrderType.MARKET_SELL);
	}

	public boolean isBuyOrder() {
		return (type == OrderType.LIMIT_BUY || type == OrderType.STOP_BUY || type == OrderType.MARKET_BUY);
	}
	
	public boolean isSellOrder() {
		return (type == OrderType.LIMIT_SELL || type == OrderType.STOP_SELL || type == OrderType.MARKET_SELL);
	}
    
    public boolean isActive()
    {
        return active;
    }
    public void setActive( boolean active )
    {
        this.active = active;
    }

    public boolean comesBefore(double price)
    {
        if ( this.isBuyOrder() )
            return (this.price < price);
        else
            return (this.price > price);
    }
}