/**
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.internal.constraints;
import java.util.Map;
import com.bigdata.bop.BOp;
import com.bigdata.bop.IConstant;
import com.bigdata.bop.IConstraint;
import com.bigdata.bop.IValueExpression;
import com.bigdata.bop.NV;
import com.bigdata.rdf.internal.IV;
import com.bigdata.rdf.sparql.ast.GlobalAnnotations;
/**
* Abstract base class for "IN" {@link IConstraint} implementations.
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
* @version $Id: INConstraint.java 4286 2011-03-09 17:36:10Z mrpersonick $
*/
abstract public class InBOp extends XSDBooleanIVValueExpression {
private static final long serialVersionUID = -774833617971700165L;
public interface Annotations extends
XSDBooleanIVValueExpression.Annotations {
/**
* <code>true</code> iff this is "NOT IN" rather than "IN".
*/
String NOT = InBOp.class.getName() + ".not";
}
@SuppressWarnings("rawtypes")
private static BOp[] mergeArguments(//
final IValueExpression<? extends IV> var,
final IConstant<? extends IV>... set) {
final BOp args[] = new BOp[1 + (set != null ? set.length : 0)];
args[0] = var;
for (int i = 0; i < set.length; i++) {
args[i + 1] = set[i];
}
return args;
}
@SuppressWarnings("rawtypes")
public InBOp(//
final boolean not, //
final IValueExpression<? extends IV> var,//
final IConstant<? extends IV>... set//
) {
this(mergeArguments(var, set),
NV.asMap(Annotations.NOT, Boolean.valueOf(not)));
}
/**
* @param op
*/
public InBOp(final InBOp op) {
super(op);
}
/**
* @param args
* @param annotations
*/
public InBOp(final BOp[] args, final Map<String, Object> annotations) {
super(args, annotations);
if (getProperty(Annotations.NOT) == null)
throw new IllegalArgumentException();
@SuppressWarnings("rawtypes")
final IValueExpression<? extends IV> var = get(0);
if (var == null)
throw new IllegalArgumentException();
if (arity() < 2) {
throw new IllegalArgumentException();
}
}
/**
* The value expression to be tested.
*/
@SuppressWarnings({ "unchecked", "rawtypes" })
public IValueExpression<IV> getValueExpression() {
return (IValueExpression<IV>) get(0);
}
/**
* The remaining arguments to the IN/NOT IN function, which must be a set of
* constants.
*/
@SuppressWarnings({ "unchecked", "rawtypes" })
public IConstant<IV>[] getSet() {
final IConstant<IV>[] set = new IConstant[arity() - 1];
for (int i = 1; i < arity(); i++) {
set[i - 1] = (IConstant<IV>) get(i);
}
return set;
}
}