com.springinpractice.ch11.model.AbstractCI.java Source code

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Here is the source code for com.springinpractice.ch11.model.AbstractCI.java

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/* 
 * Copyright 2011-2013 the original author or authors.
 * 
 * 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 com.springinpractice.ch11.model;

import java.util.Date;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;

import org.springframework.data.neo4j.annotation.GraphId;
import org.springframework.data.neo4j.annotation.NodeEntity;

/**
 * @author Willie Wheeler (willie.wheeler@gmail.com)
 */
@NodeEntity
@XmlAccessorType(XmlAccessType.NONE)
public abstract class AbstractCI<T extends CI<T>> implements CI<T> {
    @GraphId
    private Long id;
    private Date dateCreated;
    private Date dateModified;

    /* (non-Javadoc)
     * @see com.springinpractice.ch11.model.Entity#getId()
     */
    @Override
    @XmlAttribute
    public Long getId() {
        return id;
    }

    /* (non-Javadoc)
     * @see com.springinpractice.ch11.model.Entity#setId(java.lang.Long)
     */
    @Override
    public void setId(Long id) {
        this.id = id;
    }

    /* (non-Javadoc)
     * @see com.springinpractice.ch11.model.CI#getDateCreated()
     */
    @Override
    public Date getDateCreated() {
        return dateCreated;
    }

    /* (non-Javadoc)
     * @see com.springinpractice.ch11.model.CI#setDateCreated(java.util.Date)
     */
    @Override
    public void setDateCreated(Date dateCreated) {
        this.dateCreated = dateCreated;
    }

    /* (non-Javadoc)
     * @see com.springinpractice.ch11.model.CI#getDateModified()
     */
    @Override
    public Date getDateModified() {
        return dateModified;
    }

    /* (non-Javadoc)
     * @see com.springinpractice.ch11.model.CI#setDateModified(java.util.Date)
     */
    @Override
    public void setDateModified(Date dateModified) {
        this.dateModified = dateModified;
    }

    /* (non-Javadoc)
     * @see java.lang.Object#equals(java.lang.Object)
     */
    @SuppressWarnings("unchecked")
    @Override
    public boolean equals(Object o) {
        if (o == this) {
            return true;
        } else if (o == null || !o.getClass().equals(getClass())) {
            return false;
        } else {
            T that = (T) o;
            Long thisId = this.getId();
            Long thatId = that.getId();
            if (thisId == null || thatId == null) {
                return super.equals(that);
            } else {
                return thatId.equals(thisId);
            }
        }
    }

    /* (non-Javadoc)
     * @see java.lang.Object#hashCode()
     */
    @Override
    public int hashCode() {
        Long id = getId();
        return (id == null ? 0 : id.hashCode());
    }

    /* (non-Javadoc)
     * @see java.lang.Comparable#compareTo(java.lang.Object)
     */
    @Override
    public int compareTo(T that) {
        String thisDisplayName = getDisplayName();
        String thatDisplayName = that.getDisplayName();
        if (thisDisplayName == null) {
            return (thatDisplayName == null ? 0 : 1);
        } else if (thatDisplayName == null) {
            return -1;
        } else {
            return thisDisplayName.compareTo(thatDisplayName);
        }
    }

    // NO! Don't do this. When the display name is null, it makes it look like the whole dang entity is null. UGH.
    //   @Override
    //   public String toString() { return getDisplayName(); }

}