X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.db.layer0%2Fsrc%2Forg%2Fsimantics%2Fdb%2Flayer0%2Fgenericrelation%2Fcombinators%2FIntersection.java;h=f9218764bc8e316db281cf601b6d9a0d14c3f5ba;hb=bb019453a50630910de8e5f0b2992b1234dbd415;hp=24e085dceeb15780269775ee0dcbc3e26b59cab3;hpb=969bd23cab98a79ca9101af33334000879fb60c5;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/genericrelation/combinators/Intersection.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/genericrelation/combinators/Intersection.java
index 24e085dce..f9218764b 100644
--- a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/genericrelation/combinators/Intersection.java
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/genericrelation/combinators/Intersection.java
@@ -1,96 +1,96 @@
-/*******************************************************************************
- * 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.db.layer0.genericrelation.combinators;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.List;
-
-import org.simantics.db.ReadGraph;
-import org.simantics.db.exception.DatabaseException;
-import org.simantics.db.layer0.adapter.GenericRelation;
-import org.simantics.db.layer0.genericrelation.AbstractRelation;
-import org.simantics.utils.datastructures.Pair;
-
-/**
- * Takes the intersection of multiple relations.
- */
-public class Intersection extends AbstractRelation {
-
-	GenericRelation realizable = null;
-	Collection<GenericRelation> constraints;
-	
-	public Intersection(Collection<GenericRelation> relations) {
-		for(GenericRelation relation : relations)
-			if(realizable == null && relation.isRealizable()) {
-				realizable = relation;
-			}
-			else
-				constraints.add(relation);
-	}
-	
-	public Intersection(GenericRelation realizable, Collection<GenericRelation> constraints) {
-		assert(realizable.isRealizable());
-		this.realizable = realizable;
-		this.constraints = constraints;
-	}
-
-	@Override
-	public boolean contains(ReadGraph g, Object[] tuple) throws DatabaseException {
-		if(!realizable.contains(g, tuple))
-			return false;
-		for(GenericRelation relation : constraints)
-			if(!relation.contains(g, tuple))
-				return false;
-		return true;
-	}
-
-	@Override
-	public boolean isRealizable() {
-		return realizable != null;
-	}
-
-	@Override
-	public List<Object[]> realize(ReadGraph g) throws DatabaseException {
-		ArrayList<Object[]> result = new ArrayList<Object[]>();
-		loop:
-		for(Object[] tuple : realizable.realize(g)) {
-			for(GenericRelation constraint : constraints)
-				if(!constraint.contains(g, tuple))
-					continue loop;
-			result.add(tuple);
-		}
-		return result;
-	}	
-
-	// TODO optimize select
-	
-	@Override
-	public GenericRelation selectByRelation(String bindingPattern,
-			GenericRelation constraint) {
-		if(realizable != null)
-			return new Intersection(realizable.selectByRelation(bindingPattern, constraint),
-					constraints);
-		else
-			return super.selectByRelation(bindingPattern, constraint);
-	}
-	
-	@Override
-	public Pair<String, String>[] getFields() {
-		if(realizable != null)
-			return realizable.getFields();
-		for(GenericRelation relation : constraints)
-			return relation.getFields();
-		return null;
-	}
-
-}
+/*******************************************************************************
+ * 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.db.layer0.genericrelation.combinators;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.layer0.adapter.GenericRelation;
+import org.simantics.db.layer0.genericrelation.AbstractRelation;
+import org.simantics.utils.datastructures.Pair;
+
+/**
+ * Takes the intersection of multiple relations.
+ */
+public class Intersection extends AbstractRelation {
+
+	GenericRelation realizable = null;
+	Collection<GenericRelation> constraints;
+	
+	public Intersection(Collection<GenericRelation> relations) {
+		for(GenericRelation relation : relations)
+			if(realizable == null && relation.isRealizable()) {
+				realizable = relation;
+			}
+			else
+				constraints.add(relation);
+	}
+	
+	public Intersection(GenericRelation realizable, Collection<GenericRelation> constraints) {
+		assert(realizable.isRealizable());
+		this.realizable = realizable;
+		this.constraints = constraints;
+	}
+
+	@Override
+	public boolean contains(ReadGraph g, Object[] tuple) throws DatabaseException {
+		if(!realizable.contains(g, tuple))
+			return false;
+		for(GenericRelation relation : constraints)
+			if(!relation.contains(g, tuple))
+				return false;
+		return true;
+	}
+
+	@Override
+	public boolean isRealizable() {
+		return realizable != null;
+	}
+
+	@Override
+	public List<Object[]> realize(ReadGraph g) throws DatabaseException {
+		ArrayList<Object[]> result = new ArrayList<Object[]>();
+		loop:
+		for(Object[] tuple : realizable.realize(g)) {
+			for(GenericRelation constraint : constraints)
+				if(!constraint.contains(g, tuple))
+					continue loop;
+			result.add(tuple);
+		}
+		return result;
+	}	
+
+	// TODO optimize select
+	
+	@Override
+	public GenericRelation selectByRelation(String bindingPattern,
+			GenericRelation constraint) {
+		if(realizable != null)
+			return new Intersection(realizable.selectByRelation(bindingPattern, constraint),
+					constraints);
+		else
+			return super.selectByRelation(bindingPattern, constraint);
+	}
+	
+	@Override
+	public Pair<String, String>[] getFields() {
+		if(realizable != null)
+			return realizable.getFields();
+		for(GenericRelation relation : constraints)
+			return relation.getFields();
+		return null;
+	}
+
+}