/*
Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016. All rights reserved.
Contact:
SYSTAP, LLC DBA Blazegraph
2501 Calvert ST NW #106
Washington, DC 20008
licenses@blazegraph.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.bigdata.rdf.store;
import org.openrdf.model.Resource;
import org.openrdf.model.URI;
import org.openrdf.model.Value;
/**
* A simple class that represents a triple (or quad) pattern.
*
* @see <a href="http://trac.blazegraph.com/ticket/866" > Efficient batch remove of
* a collection of triple patterns </a>
*/
public class BigdataTriplePattern {
// private static final long serialVersionUID = 1L;
private final Resource s;
private final URI p;
private final Value o;
private final Resource c;
public BigdataTriplePattern(final Resource subject,
final URI predicate, final Value object) {
this(subject, predicate, object, (Resource) null);
}
public BigdataTriplePattern(final Resource subject,
final URI predicate, final Value object,
final Resource context) {
this.s = subject;
this.p = predicate;
this.o = object;
this.c = context;
}
final public Resource getSubject() {
return s;
}
final public URI getPredicate() {
return p;
}
final public Value getObject() {
return o;
}
final public Resource getContext() {
return c;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((c == null) ? 0 : c.hashCode());
result = prime * result + ((o == null) ? 0 : o.hashCode());
result = prime * result + ((p == null) ? 0 : p.hashCode());
result = prime * result + ((s == null) ? 0 : s.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
BigdataTriplePattern other = (BigdataTriplePattern) obj;
if (c == null) {
if (other.c != null)
return false;
} else if (!c.equals(other.c))
return false;
if (o == null) {
if (other.o != null)
return false;
} else if (!o.equals(other.o))
return false;
if (p == null) {
if (other.p != null)
return false;
} else if (!p.equals(other.p))
return false;
if (s == null) {
if (other.s != null)
return false;
} else if (!s.equals(other.s))
return false;
return true;
}
}