/*
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.IBindingSet;
import com.bigdata.bop.IVariable;
import com.bigdata.bop.NV;
import com.bigdata.bop.PipelineOp;
import com.bigdata.rdf.error.SparqlTypeErrorException;
import com.bigdata.rdf.internal.IV;
/**
* Imposes the constraint <code>isInline(x)</code>.
*/
public class IsInlineBOp extends XSDBooleanIVValueExpression {
/**
*
*/
private static final long serialVersionUID = 3125106876006900339L;
// private static final transient Logger log = Logger
// .getLogger(IsInlineBOp.class);
public interface Annotations extends PipelineOp.Annotations {
/**
* If true, only accept variable bindings for {@link #x} that have an
* inline internal value {@link IV}. Otherwise only accept variable bindings
* that are not inline in the statement indices.
* <p>
* @see IV#isInline()
*/
String INLINE = IsInlineBOp.class.getName() + ".inline";
}
public IsInlineBOp(final IVariable<IV> x, final boolean inline) {
this(new BOp[] { x }, NV.asMap(Annotations.INLINE, inline));
}
/**
* Required shallow copy constructor.
*/
public IsInlineBOp(final BOp[] args, final Map<String, Object> anns) {
super(args, anns);
if (args.length != 1 || args[0] == null)
throw new IllegalArgumentException();
if (getProperty(Annotations.INLINE) == null)
throw new IllegalArgumentException();
}
/**
* Constructor required for {@link com.bigdata.bop.BOpUtility#deepCopy(FilterNode)}.
*/
public IsInlineBOp(final IsInlineBOp op) {
super(op);
}
public boolean accept(final IBindingSet bs) {
final boolean inline =
(Boolean) getRequiredProperty(Annotations.INLINE);
final IV<?,?> iv = get(0).get(bs);
// if (log.isDebugEnabled()) {
// log.debug(iv);
// if (iv != null)
// log.debug("inline?: " + iv.isInline());
// }
// not yet bound
if (iv == null)
throw new SparqlTypeErrorException();
return iv.isInline() == inline;
}
}