/*
* 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.openjpa.trader.domain;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
/**
* A stock is a typical financial instrument that is bought and sold by {@linkplain Trader}.
* A stock is mostly an immutable entity, except its price.
*
* @author Pinaki Poddar
*
*/
@SuppressWarnings("serial")
@Entity
public class Stock implements Serializable {
/**
* The primary identity of a Stock.
* The uniqueness of the primary keys are often warranted by the persistence provider.
* In this case, unique of a Stock symbol is ensured by an external agency.
*/
@Id
private String symbol;
/**
* The name of the company represented by this financial instrument.
*/
private String company;
private Sector sector;
@Column(precision=10,scale=2)
private double price;
@Column(precision=10,scale=2)
private double lastPrice;
/**
* A no-arg constructor to comply to both GWT compiler and OpenJPA
* bytecode enhancer.
*/
protected Stock() {
}
public Stock(String symbol, String company, Sector sector, double price) {
super();
this.symbol = symbol;
this.company = company;
this.sector = sector;
this.price = price;
this.lastPrice = price;
}
public String getSymbol() {
return symbol;
}
public String getCompany() {
return company;
}
public Sector getSector() {
return sector;
}
public double getMarketPrice() {
return price;
}
public void setMarketPrice(double newPrice) {
this.lastPrice = this.price;
this.price = newPrice;
}
public double getLastPrice() {
return lastPrice;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((symbol == null) ? 0 : symbol.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Stock other = (Stock) obj;
if (symbol == null) {
if (other.symbol != null)
return false;
} else if (!symbol.equals(other.symbol))
return false;
return true;
}
}