Resource.java

package swag.model;

import java.io.Serializable;

import javax.persistence.Column;
import javax.persistence.EmbeddedId;
import javax.persistence.Entity;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;

@Entity
public class Resource {
	public class Id implements Serializable {
		private static final long serialVersionUID = 1L;
		private Long playerId;
		private ResourceType resourceType;

		public Id() {
		}

		public Id(long playerId, ResourceType resourceType) {
			super();
			this.playerId = playerId;
			this.resourceType = resourceType;
		}

		@Override
		public int hashCode() {
			return playerId.hashCode() + resourceType.hashCode();
		}

		@Override
		public boolean equals(Object obj) {
			if (obj != null && obj instanceof Id) {
				return this.playerId.equals(((Id) obj).playerId)
						&& this.resourceType.equals(((Id) obj).playerId);
			} else {
				return false;
			}
		}
	}

	@EmbeddedId
	private Id id = new Id();

	@ManyToOne(optional = false)
	@JoinColumn(name = "playerId", insertable = false, updatable = false)
	private Player player;

	@Column(nullable = false)
	private Integer amount;

	public Resource() {
	}

	public Resource(Player player, ResourceType resourceType, int amount) {
		this.player = player;
		this.amount = amount;
		this.id.playerId = player.getId();
		this.id.resourceType = resourceType;

		player.getResources().add(this);
	}

	public Id getId() {
		return id;
	}

	public Player getPlayer() {
		return player;
	}

	public ResourceType getResourceType() {
		return id.resourceType;
	}

	public Integer getAmount() {
		return amount;
	}

	public void setAmount(Integer amount) {
		this.amount = amount;
	}
}