/*
* This is a common dao with basic CRUD operations and is not limited to any
* persistent layer implementation
*
* Copyright (C) 2008 Imran M Yousuf (imyousuf@smartitengineering.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package com.smartitengineering.version.api.impl;
import com.smartitengineering.version.api.Resource;
import com.smartitengineering.version.api.Revision;
import com.smartitengineering.version.api.spi.MutableRevision;
import org.apache.commons.lang.StringUtils;
/**
*
* @author imyousuf
*/
public class RevisionImpl
implements Revision,
MutableRevision {
private String revisionId;
private Resource resource;
/**
* Get the value of resource
*
* @return the value of resource
*/
public Resource getResource() {
if (resource == null) {
throw new IllegalStateException(
"Resource must be set before attempting to retrieve!");
}
return resource;
}
/**
* Set the value of resource
*
* @param resource new value of resource
*/
public void setResource(Resource resource) {
this.resource = resource;
}
/**
* Get the value of revisionId
*
* @return the value of revisionId
*/
public String getRevisionId() {
return revisionId;
}
/**
* Set the value of revisionId
*
* @param revisionId new value of revisionId
*/
public void setRevisionId(String revisionId) {
this.revisionId = revisionId;
}
@Override
public boolean equals(Object obj) {
if (obj instanceof Revision) {
Revision revisionObj = (Revision) obj;
if (StringUtils.isNotBlank(getRevisionId())) {
return getRevisionId().equals(revisionObj.getRevisionId());
}
else if (StringUtils.isBlank(getRevisionId()) && StringUtils.isBlank(
revisionObj.getRevisionId()) && getResource() != null) {
return getResource().equals(revisionObj.getResource());
}
}
return super.equals(obj);
}
@Override
public int hashCode() {
if (StringUtils.isNotBlank(getRevisionId())) {
return getRevisionId().hashCode();
}
else if (StringUtils.isBlank(getRevisionId()) && getResource() != null) {
return getResource().hashCode();
}
return super.hashCode();
}
}