ReadMessageImpl.java

/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <hr>
* <a href="http://www.openolat.org">
* OpenOLAT - Online Learning and Training</a><br>
* This file has been modified by the OpenOLAT community. Changes are licensed
* under the Apache 2.0 license as the original file.
*/
package org.olat.modules.fo.model;

import java.util.Date;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Table;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
import javax.persistence.Version;

import org.hibernate.annotations.GenericGenerator;
import org.hibernate.annotations.Parameter;
import org.olat.basesecurity.IdentityImpl;
import org.olat.core.id.CreateInfo;
import org.olat.core.id.Identity;
import org.olat.core.id.Persistable;
import org.olat.modules.fo.Forum;
import org.olat.modules.fo.MessageLight;


@Entity(name="foreadmessage")
@Table(name="o_readmessage")
public class ReadMessageImpl implements CreateInfo, Persistable {

	private static final long serialVersionUID = 1411870563218649869L;

	@Id
	@GeneratedValue(generator = "system-uuid")
	@GenericGenerator(name = "system-uuid", strategy = "enhanced-sequence", parameters={
		@Parameter(name="sequence_name", value="hibernate_unique_key"),
		@Parameter(name="force_table_use", value="true"),
		@Parameter(name="optimizer", value="legacy-hilo"),
		@Parameter(name="value_column", value="next_hi"),
		@Parameter(name="increment_size", value="32767"),
		@Parameter(name="initial_value", value="32767")
	})
	@Column(name="id", nullable=false, unique=true, insertable=true, updatable=false)
	private Long key;
	@Version
	private int version = 0;
	
	@Temporal(TemporalType.TIMESTAMP)
	@Column(name="creationdate", nullable=false, insertable=true, updatable=false)
	private Date creationDate;

	@ManyToOne(targetEntity=IdentityImpl.class,fetch=FetchType.LAZY,optional=true)
	@JoinColumn(name="identity_id", nullable=true, insertable=true, updatable=false)
	private Identity identity;
	
	@ManyToOne(targetEntity=MessageLightImpl.class,fetch=FetchType.LAZY,optional=true)
	@JoinColumn(name="message_id", nullable=true, insertable=true, updatable=false)
	private MessageLight message;
	
	@ManyToOne(targetEntity=ForumImpl.class,fetch=FetchType.LAZY,optional=true)
	@JoinColumn(name="forum_id", nullable=true, insertable=true, updatable=false)
	private Forum forum;

	@Override
	public Long getKey() {
		return key;
	}

	public void setKey(Long key) {
		this.key = key;
	}

	@Override
	public Date getCreationDate() {
		return creationDate;
	}

	public void setCreationDate(Date creationDate) {
		this.creationDate = creationDate;
	}

	public Forum getForum() {
		return forum;
	}

	public void setForum(Forum forum) {
		this.forum = forum;
	}

	public Identity getIdentity() {
		return identity;
	}

	public void setIdentity(Identity identity) {
		this.identity = identity;
	}

	public MessageLight getMessage() {
		return message;
	}

	public void setMessage(MessageLight message) {
		this.message = message;
	}
	
	@Override
	public int hashCode() {
		return key == null ? 835245 : key.hashCode();
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj) {
			return true;
		}
		if (obj instanceof ReadMessageImpl) {
			ReadMessageImpl other = (ReadMessageImpl) obj;
			return getKey().equals(other.getKey());
		}
		return false;
	}

	@Override
	public boolean equalsByPersistableKey(Persistable persistable) {
		return equals(persistable);
	}
}