X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.mapping%2Fsrc%2Forg%2Fsimantics%2Fmapping%2Fconstraint%2Finstructions%2FTripletPredicateQuery.java;h=9af10589b7ed3c0ab823a5ef4631b0889c439206;hp=fbab43f928faa16446558e9fc4722bddd7b6c481;hb=refs%2Fchanges%2F38%2F238%2F2;hpb=24e2b34260f219f0d1644ca7a138894980e25b14

diff --git a/bundles/org.simantics.mapping/src/org/simantics/mapping/constraint/instructions/TripletPredicateQuery.java b/bundles/org.simantics.mapping/src/org/simantics/mapping/constraint/instructions/TripletPredicateQuery.java
index fbab43f92..9af10589b 100644
--- a/bundles/org.simantics.mapping/src/org/simantics/mapping/constraint/instructions/TripletPredicateQuery.java
+++ b/bundles/org.simantics.mapping/src/org/simantics/mapping/constraint/instructions/TripletPredicateQuery.java
@@ -1,82 +1,82 @@
-/*******************************************************************************
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management
- * in Industry THTH ry.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- *     VTT Technical Research Centre of Finland - initial API and implementation
- *******************************************************************************/
-package org.simantics.mapping.constraint.instructions;
-
-import gnu.trove.set.hash.TIntHashSet;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Iterator;
-
-import org.simantics.db.ReadGraph;
-import org.simantics.db.Resource;
-import org.simantics.db.Statement;
-import org.simantics.db.exception.DatabaseException;
-import org.simantics.layer0.Layer0;
-
-public class TripletPredicateQuery extends TripletInstruction {
-
-	Resource predicate;
-	
-	public TripletPredicateQuery(int variable0, int variable1, int variable2,
-			Resource predicate) {
-		super(variable0, variable1, variable2);
-		this.predicate = predicate;
-	}
-	
-	public TripletPredicateQuery(int variable0, int variable1, int variable2) {
-		super(variable0, variable1, variable2);	
-	}
-	
-	@Override
-	public Object query(ReadGraph g, Object[] bindings) throws DatabaseException {
-		Resource r0 = (Resource)bindings[variable0];
-		Resource r2 = (Resource)bindings[variable2];
-		Collection<Resource> result = new ArrayList<Resource>();
-		for(Statement stat : 
-			predicate == null ? 
-				g.getStatements(r0, Layer0.getInstance(g).IsWeaklyRelatedTo) : 
-				g.getStatements(r0, predicate))
-			if(stat.getObject().equals(r2))
-				result.add(stat.getPredicate());
-		if(result.isEmpty())
-			return IInstruction.FAILURE;
-		Iterator<Resource> it = result.iterator();
-		bindings[variable1] = it.next();
-		if(it.hasNext())
-			return it;
-		else
-			return null;
-	}
-	
-	@SuppressWarnings("unchecked")
-	@Override
-	public Object next(ReadGraph g, Object[] bindings, Object continuation) {
-		Iterator<Resource> it = (Iterator<Resource>)continuation;
-		if(it.hasNext()) {
-			bindings[variable1] = it.next();
-			if(it.hasNext())
-				return it;
-			else
-				return null;
-		}
-		else
-			return IInstruction.FAILURE;
-	}	
-	
-	@Override
-	public void collectVariables(TIntHashSet reads, TIntHashSet writes) {		
-		super.collectVariables(reads, writes);
-		writes.add(variable1);
-	}
-
-}
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.mapping.constraint.instructions;
+
+import gnu.trove.set.hash.TIntHashSet;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Iterator;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.Statement;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.layer0.Layer0;
+
+public class TripletPredicateQuery extends TripletInstruction {
+
+	Resource predicate;
+	
+	public TripletPredicateQuery(int variable0, int variable1, int variable2,
+			Resource predicate) {
+		super(variable0, variable1, variable2);
+		this.predicate = predicate;
+	}
+	
+	public TripletPredicateQuery(int variable0, int variable1, int variable2) {
+		super(variable0, variable1, variable2);	
+	}
+	
+	@Override
+	public Object query(ReadGraph g, Object[] bindings) throws DatabaseException {
+		Resource r0 = (Resource)bindings[variable0];
+		Resource r2 = (Resource)bindings[variable2];
+		Collection<Resource> result = new ArrayList<Resource>();
+		for(Statement stat : 
+			predicate == null ? 
+				g.getStatements(r0, Layer0.getInstance(g).IsWeaklyRelatedTo) : 
+				g.getStatements(r0, predicate))
+			if(stat.getObject().equals(r2))
+				result.add(stat.getPredicate());
+		if(result.isEmpty())
+			return IInstruction.FAILURE;
+		Iterator<Resource> it = result.iterator();
+		bindings[variable1] = it.next();
+		if(it.hasNext())
+			return it;
+		else
+			return null;
+	}
+	
+	@SuppressWarnings("unchecked")
+	@Override
+	public Object next(ReadGraph g, Object[] bindings, Object continuation) {
+		Iterator<Resource> it = (Iterator<Resource>)continuation;
+		if(it.hasNext()) {
+			bindings[variable1] = it.next();
+			if(it.hasNext())
+				return it;
+			else
+				return null;
+		}
+		else
+			return IInstruction.FAILURE;
+	}	
+	
+	@Override
+	public void collectVariables(TIntHashSet reads, TIntHashSet writes) {		
+		super.collectVariables(reads, writes);
+		writes.add(variable1);
+	}
+
+}