VersionedEntity.java

/**
 * Licensed to the Austrian Association for Software Tool Integration (AASTI)
 * under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright
 * ownership. The AASTI 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.openengsb.core.edb.jpa.internal;

import java.io.Serializable;
import java.util.Date;

import javax.persistence.Column;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.MappedSuperclass;
import javax.persistence.PrePersist;
import javax.persistence.PreUpdate;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
import javax.persistence.Version;

@SuppressWarnings("serial")
@MappedSuperclass
public abstract class VersionedEntity implements Serializable {

    @Id
    //FIXME [OPENENGSB-1938] Change back, once Liquibase Synch is implemented. 
    // @TableGenerator(name = "OPENENGSB_ID", table = "OPENENGSB_ID", allocationSize = 1)
    // @GeneratedValue(generator = "OPENENGSB_ID", strategy = GenerationType.TABLE)
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "ID")
    private Long id;
    @Version
    @Column(name = "VERSION")
    private Long version;
    @Column(name = "CREATION_DATE")
    @Temporal(TemporalType.TIMESTAMP)
    private Date creationDate;
    @Column(name = "UPDATE_DATE")
    @Temporal(TemporalType.TIMESTAMP)
    private Date updateDate;

    @PrePersist
    public void prePersist() {
        if (creationDate == null) {
            creationDate = new Date();
            updateDate = new Date(creationDate.getTime());
        }
    }

    @PreUpdate
    public void preUpdate() {
        updateDate = new Date();
    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public Long getVersion() {
        return version;
    }

    public void setVersion(Long version) {
        this.version = version;
    }

    public Date getUpdateDate() {
        return updateDate;
    }

    public Date getCreationDate() {
        return creationDate;
    }
}