ItemKey.java

package org.tests.compositekeys.db;

import javax.persistence.Column;
import javax.persistence.Embeddable;

@Embeddable
public class ItemKey {
  private int customer;

  @Column(name = "itemNumber")
  private String itemNumber;

  public int getCustomer() {
    return customer;
  }

  public void setCustomer(int customer) {
    this.customer = customer;
  }

  public String getItemNumber() {
    return itemNumber;
  }

  public void setItemNumber(String itemNumber) {
    this.itemNumber = itemNumber;
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) {
      return true;
    }
    if (!(o instanceof ItemKey)) {
      return false;
    }

    ItemKey itemKey = (ItemKey) o;

    if (customer != itemKey.customer) {
      return false;
    }
    if (!itemNumber.equals(itemKey.itemNumber)) {
      return false;
    }

    return true;
  }

  @Override
  public int hashCode() {
    int result = customer;
    result = 31 * result + itemNumber.hashCode();
    return result;
  }
}