de.kaiserpfalzEdv.infopir.backend.db.BaseEntity.java Source code

Introduction

Here is the source code for de.kaiserpfalzEdv.infopir.backend.db.BaseEntity.java

Source

/*
 * Copyright 2015 Kaiserpfalz EDV-Service, Roland T. Lichti
 *
 * Licensed 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 de.kaiserpfalzEdv.infopir.backend.db;

import de.kaiserpfalzEdv.infopir.backend.HasId;
import org.apache.commons.lang3.builder.EqualsBuilder;
import org.apache.commons.lang3.builder.HashCodeBuilder;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.joda.time.DateTime;
import org.springframework.data.annotation.CreatedDate;
import org.springframework.data.annotation.LastModifiedDate;
import org.springframework.data.jpa.domain.support.AuditingEntityListener;

import javax.persistence.Column;
import javax.persistence.EntityListeners;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.MappedSuperclass;
import javax.persistence.Transient;
import java.sql.Timestamp;

import static javax.persistence.GenerationType.IDENTITY;

/**
 * The central base entity superclass. Contains the id.
 *
 * @author klenkes
 * @version 2015Q1
 * @since 06.09.15 07:49
 */
@MappedSuperclass
@EntityListeners(AuditingEntityListener.class)
public abstract class BaseEntity implements HasId {
    private static final long serialVersionUID = 6878676245717735227L;

    private Long id;

    private Timestamp created;
    private Timestamp lastModified;

    @Id
    @GeneratedValue(strategy = IDENTITY)
    @Column(name = "id_", nullable = false, updatable = false)
    @Override
    public Long getId() {
        return id;
    }

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

    @Column(name = "created_at_", nullable = false, updatable = false)
    public Timestamp getCreated() {
        return created;
    }

    public void setCreated(final Timestamp timestamp) {
        created = timestamp;
    }

    @Column(name = "last_modified_at_")
    public Timestamp getLastModified() {
        return lastModified;
    }

    public void setLastModified(final Timestamp timestamp) {
        lastModified = timestamp;
    }

    @Transient
    public boolean isNew() {
        return getId() == null;
    }

    @Transient
    @CreatedDate
    public DateTime getCreatedDate() {
        return new DateTime(created);
    }

    public void setCreatedDate(final DateTime timestamp) {
        created = new Timestamp(timestamp.getMillis());
    }

    @Transient
    @LastModifiedDate
    public DateTime getLastModifiedDate() {
        return new DateTime(lastModified);
    }

    public void setLastModifiedDate(final DateTime timestamp) {
        lastModified = new Timestamp(timestamp.getMillis());
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }
        if (obj == this) {
            return true;
        }
        if (obj.getClass() != getClass()) {
            return false;
        }
        BaseEntity rhs = (BaseEntity) obj;
        return new EqualsBuilder().append(this.id, rhs.getId()).isEquals();
    }

    @Override
    public int hashCode() {
        return new HashCodeBuilder().append(id).toHashCode();
    }

    @Override
    public String toString() {
        return new ToStringBuilder(this).append("id", id).append("created", created)
                .append("lastModified", lastModified).toString();
    }
}