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Provides Sample implementations of the SPI and API's inside the core of Shindig.

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/*
 * 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.shindig.social.opensocial.jpa;

import javax.persistence.Entity;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.PrimaryKeyJoinColumn;
import javax.persistence.Table;

/**
 * This is a property of a friend link, extending the listfield type, and using the type property to
 * perform the mapping. Main storage is in the listfield table, but friend property stores the
 * details of the relationship with the friend object.
 */
@Entity
@Table(name = "friend_property")
@PrimaryKeyJoinColumn(name = "oid")
public class FriendPropertyDb extends ListFieldDb {
  /**
   * The friend relationship connected with this property.
   */
  @ManyToOne(targetEntity = FriendDb.class)
  @JoinColumn(name = "friend_id", referencedColumnName = "oid")
  protected FriendDb friend;

  /**
   * @return the friend
   */
  public FriendDb getFriend() {
    return friend;
  }

  /**
   * @param friend the friend to set
   */
  public void setFriend(FriendDb friend) {
    this.friend = friend;
  }

}