/**
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
*/
/*
* Created on Mar 27, 2012
*/
package com.bigdata.rdf.sparql.ast;
import java.util.Map;
import java.util.Set;
import com.bigdata.bop.BOp;
import com.bigdata.bop.IVariable;
import com.bigdata.bop.NV;
/**
* An AST node which models either {@link QuadData} or a named solution set in
* support of the INSERT clause and DELETE clause of a {@link DeleteInsertGraph}
* operations. Use {@link #isQuads()} or {@link #isSolutions()} to identify how
* this AST node should be interpreted.
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
* @version $Id: QuadsDataOrNamedSolutionSet.java 6196 2012-03-27 20:06:22Z
* thompsonbry $
*
* TODO Rather than overriding this for two very different things
* (quads data and the name of a solution set) it might be better to
* relayer the AST model or just handle this via polymorphism in the
* {@link DeleteInsertGraph} AST node.
*/
public class QuadsDataOrNamedSolutionSet extends QueryNodeBase implements
INamedSolutionSet, IProjectionDecl {
/**
*
*/
private static final long serialVersionUID = 1L;
public interface Annotations extends QueryNodeBase.Annotations,
INamedSolutionSet.Annotations, IProjectionDecl.Annotations {
/**
* The {@link QuadData} (optional; when present this is modeling QUADS
* data).
*/
String QUAD_DATA = "quadData";
}
/**
* @param op
*/
public QuadsDataOrNamedSolutionSet(final QuadsDataOrNamedSolutionSet op) {
super(op);
}
/**
* @param args
* @param annotations
*/
public QuadsDataOrNamedSolutionSet(final BOp[] args,
final Map<String, Object> annotations) {
super(args, annotations);
}
public QuadsDataOrNamedSolutionSet(final QuadData quadData) {
super(BOp.NOARGS, NV.asMap(Annotations.QUAD_DATA, quadData));
}
public QuadsDataOrNamedSolutionSet(final String namedSet) {
super(BOp.NOARGS, NV.asMap(Annotations.NAMED_SET, namedSet));
}
/**
* Return the {@link QuadData} template.
*/
public QuadData getQuadData() {
return (QuadData) getProperty(Annotations.QUAD_DATA);
}
public void setQuadData(final QuadData data) {
setProperty(Annotations.QUAD_DATA, data);
}
/**
* Return <code>true</code> iff this models QUADS data (rather than named
* solutions)
*/
public boolean isQuads() {
return getProperty(Annotations.QUAD_DATA)!=null;
}
/**
* Return <code>true</code> iff this models a reference to some named
* solutions (rather than QUADS data).
*/
public boolean isSolutions() {
return getProperty(Annotations.NAMED_SET) != null;
}
public String getName() {
return (String) getProperty(Annotations.NAMED_SET);
}
public void setName(final String name) {
setProperty(Annotations.NAMED_SET, name);
}
public void setProjection(final ProjectionNode projection) {
setProperty(Annotations.PROJECTION, projection);
}
public ProjectionNode getProjection() {
return (ProjectionNode) getProperty(Annotations.PROJECTION);
}
public Set<IVariable<?>> getProjectedVars(final Set<IVariable<?>> vars) {
final ProjectionNode tmp = getProjection();
if(tmp != null) {
tmp.getProjectionVars(vars);
}
return vars;
}
@Override
public String toString(final int indent) {
final StringBuilder sb = new StringBuilder();
final QuadData quadData = getQuadData();
final String namedSolutionSet = getName();
final ProjectionNode projection = getProjection();
if (quadData != null) {
sb.append("\n");
sb.append(quadData.toString(indent));
}
if (namedSolutionSet != null) {
sb.append("namedSet=" + namedSolutionSet);
}
if (projection != null) {
sb.append("\n");
sb.append(projection.toString(indent + 1));
}
return sb.toString();
}
}