package myorg.relex.many2one;
   
   import java.io.Serializable;
   import javax.persistence.*;
   /**
    * This class provides an example primary key class for a child entity that
    * derives one of its primary key values from its parent entity in a many-to-one
    * relationship.
    */
  @SuppressWarnings("serial")
  @Embeddable
  public class ItemPK implements Serializable {
  	@Column(name="TYPE_ID_PK")
  	private int typeId; //unique value from parent ItemType.id	
  	@Column(name="NUMBER_PK")
  	private int number; //unique value assigned to instances of Item
  
  	public int getTypeId() { return typeId; }
  	public ItemPK setTypeId(int typeId) {
  		this.typeId = typeId;
  		return this;
  	}	
  	public int getNumber() { return number; }
  	public ItemPK setNumber(int number) {
  		this.number = number;
  		return this;
  	}
  	
  	@Override
  	public int hashCode() {
  		return typeId + number;
  	}	
  	@Override
  	public boolean equals(Object obj) {
  		try {
  			if (this == obj) { return true; }
  			ItemPK rhs = (ItemPK) obj;
  			return typeId==rhs.typeId && number==rhs.number;
  		} catch (Exception ex) { return false; }
  	}
  	@Override
  	public String toString() {
  		return "(typeId=" + typeId + ",number=" + number + ")";
  	}
  }