/**
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.sparql.ast;
import java.util.Map;
import com.bigdata.bop.BOp;
import com.bigdata.bop.NV;
import com.bigdata.rdf.internal.constraints.Range;
import com.bigdata.rdf.internal.constraints.RangeBOp;
/**
* It's a value expression because it does eventually evaluate to a value -
* a {@link Range} value.
*/
public class RangeNode extends ASTBase {
/**
*
*/
private static final long serialVersionUID = 1954230684539505857L;
public interface Annotations extends ASTBase.Annotations {
/**
* The variable whose range is restricted by the associated
* {@link #FROM} and/or {@link #TO} filters.
*/
String VAR = RangeNode.class.getName() + ".var";
/**
* The inclusive lower bound.
*/
String FROM = RangeNode.class.getName() + ".from";
/**
* The exclusive upper bound.
*/
String TO = RangeNode.class.getName() + ".to";
/**
* The physical bop to be executed.
*/
String RANGE_BOP = RangeNode.class.getName() + ".bop";
}
/**
* Set the bounds later.
*/
public RangeNode(final VarNode var) {
this(BOp.NOARGS, NV.asMap(
new NV(Annotations.VAR, var)
));
}
/**
* Set the bounds now.
*/
public RangeNode(final VarNode var, final IValueExpressionNode from,
final IValueExpressionNode to) {
this(BOp.NOARGS, NV.asMap(
new NV(Annotations.VAR, var),
new NV(Annotations.FROM, from),
new NV(Annotations.TO, to)
));
}
public RangeNode(final BOp[] args, final Map<String, Object> anns) {
super(args, anns);
}
public RangeNode(final RangeNode bop) {
super(bop);
}
public void setFrom(final ValueExpressionNode ve) {
setProperty(Annotations.FROM, ve);
}
public void setTo(final ValueExpressionNode ve) {
setProperty(Annotations.TO, ve);
}
public ValueExpressionNode from() {
return (ValueExpressionNode) getProperty(Annotations.FROM);
}
public ValueExpressionNode to() {
return (ValueExpressionNode) getProperty(Annotations.TO);
}
public VarNode var() {
return (VarNode) getProperty(Annotations.VAR);
}
public RangeBOp getRangeBOp() {
return (RangeBOp) getProperty(Annotations.RANGE_BOP);
}
public void setRangeBOp(final RangeBOp bop) {
setProperty(Annotations.RANGE_BOP, bop);
}
}