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%2FSelection.java;h=d515d3449fbafeb2b154b10ebe57b4bc85ed084f;hb=48bb50bb6640506d1f150ca8e4fa5a6e878464be;hp=af9ad3ab75c5885ad9373c695434e9d553b1057b;hpb=969bd23cab98a79ca9101af33334000879fb60c5;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/genericrelation/combinators/Selection.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/genericrelation/combinators/Selection.java
index af9ad3ab7..d515d3449 100644
--- a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/genericrelation/combinators/Selection.java
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/genericrelation/combinators/Selection.java
@@ -1,117 +1,117 @@
-/*******************************************************************************
- * 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 gnu.trove.list.array.TIntArrayList;
-
-import java.util.ArrayList;
-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;
-
-/**
- * Selects tuples from the relation by fixing certain fields.
- * Also projects the relation to unfixed fields. 
- * 
- * Do not use this class directly, because relations have often
- * optimized selection methods, but use IRelation.select method.
- */
-public class Selection extends AbstractRelation {
-	
-	AbstractRelation base;
-	int baseLength;
-	int[] constantPositions;
-	int[] variablePositions;
-	Object[] constants;
-	
-	public Selection(AbstractRelation base, String bindingPattern,
-			Object[] constants) {
-		this.base = base;
-		TIntArrayList constantPositionArray = new TIntArrayList();
-		TIntArrayList variablePositionsArray = new TIntArrayList();
-		baseLength = bindingPattern.length();
-		for(int i=0;i<baseLength;++i)
-			switch(bindingPattern.charAt(i)) {
-			case 'b': constantPositionArray.add(i); break;
-			case 'v': variablePositionsArray.add(i); break;
-			}
-		constantPositions = constantPositionArray.toArray();
-		variablePositions = variablePositionsArray.toArray();
-		this.constants = constants;
-	}
-
-	@Override
-	public boolean contains(ReadGraph g, Object[] tuple) throws DatabaseException {
-		assert(tuple.length == variablePositions.length);
-		Object[] temp = new Object[baseLength];
-		for(int i=0;i<constantPositions.length;++i)
-			temp[constantPositions[i]] = constants[i];
-		for(int i=0;i<variablePositions.length;++i)
-			temp[variablePositions[i]] = tuple[i];
-		return base.contains(g, temp);
-	}
-
-	@Override
-	public boolean isRealizable() {
-		return base.isRealizable();
-	}
-
-	@Override
-	public List<Object[]> realize(ReadGraph g) throws DatabaseException {
-		ArrayList<Object[]> result = new ArrayList<Object[]>(); 
-		loop:
-		for(Object[] tuple : base.realize(g)) {
-			for(int i=0;i<constantPositions.length;++i)
-				if(!constants[i].equals(tuple[constantPositions[i]]))
-					continue loop;
-			Object[] temp = new Object[variablePositions.length];
-			for(int i=0;i<variablePositions.length;++i)
-				temp[i] = tuple[variablePositions[i]];
-			result.add(temp);
-		}
-		return result;
-	}
-
-	@Override
-	public GenericRelation select(String bindingPattern, Object[] givenConstants) {
-		assert(bindingPattern.length() == variablePositions.length);
-		char[] baseBindingPattern = new char[baseLength];
-		Object[] baseConstants = new Object[baseLength];
-		for(int i=0;i<constantPositions.length;++i) {
-			baseBindingPattern[constantPositions[i]] = 'b';
-			baseConstants[constantPositions[i]] = constants[i];
-		}
-		int j = 0;
-		for(int i=0;i<variablePositions.length;++i) {
-			char c = baseBindingPattern[variablePositions[i]] = bindingPattern.charAt(i);
-			if(c == 'b')
-				baseConstants[constantPositions[i]] = givenConstants[j++];
-		}
-		assert(j == givenConstants.length);
-		return base.select(new String(baseBindingPattern), constants);
-	}
-
-	@SuppressWarnings("unchecked")
-    @Override
-	public Pair<String, String>[] getFields() {
-		Pair<String, String>[] baseFields = base.getFields();
-		Pair<String, String>[] result = new Pair[variablePositions.length];
-		for(int i=0;i<variablePositions.length;++i)
-			result[i] = baseFields[variablePositions[i]];
-		return result;
-	}	
-	
-}
+/*******************************************************************************
+ * 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 gnu.trove.list.array.TIntArrayList;
+
+import java.util.ArrayList;
+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;
+
+/**
+ * Selects tuples from the relation by fixing certain fields.
+ * Also projects the relation to unfixed fields. 
+ * 
+ * Do not use this class directly, because relations have often
+ * optimized selection methods, but use IRelation.select method.
+ */
+public class Selection extends AbstractRelation {
+	
+	AbstractRelation base;
+	int baseLength;
+	int[] constantPositions;
+	int[] variablePositions;
+	Object[] constants;
+	
+	public Selection(AbstractRelation base, String bindingPattern,
+			Object[] constants) {
+		this.base = base;
+		TIntArrayList constantPositionArray = new TIntArrayList();
+		TIntArrayList variablePositionsArray = new TIntArrayList();
+		baseLength = bindingPattern.length();
+		for(int i=0;i<baseLength;++i)
+			switch(bindingPattern.charAt(i)) {
+			case 'b': constantPositionArray.add(i); break;
+			case 'v': variablePositionsArray.add(i); break;
+			}
+		constantPositions = constantPositionArray.toArray();
+		variablePositions = variablePositionsArray.toArray();
+		this.constants = constants;
+	}
+
+	@Override
+	public boolean contains(ReadGraph g, Object[] tuple) throws DatabaseException {
+		assert(tuple.length == variablePositions.length);
+		Object[] temp = new Object[baseLength];
+		for(int i=0;i<constantPositions.length;++i)
+			temp[constantPositions[i]] = constants[i];
+		for(int i=0;i<variablePositions.length;++i)
+			temp[variablePositions[i]] = tuple[i];
+		return base.contains(g, temp);
+	}
+
+	@Override
+	public boolean isRealizable() {
+		return base.isRealizable();
+	}
+
+	@Override
+	public List<Object[]> realize(ReadGraph g) throws DatabaseException {
+		ArrayList<Object[]> result = new ArrayList<Object[]>(); 
+		loop:
+		for(Object[] tuple : base.realize(g)) {
+			for(int i=0;i<constantPositions.length;++i)
+				if(!constants[i].equals(tuple[constantPositions[i]]))
+					continue loop;
+			Object[] temp = new Object[variablePositions.length];
+			for(int i=0;i<variablePositions.length;++i)
+				temp[i] = tuple[variablePositions[i]];
+			result.add(temp);
+		}
+		return result;
+	}
+
+	@Override
+	public GenericRelation select(String bindingPattern, Object[] givenConstants) {
+		assert(bindingPattern.length() == variablePositions.length);
+		char[] baseBindingPattern = new char[baseLength];
+		Object[] baseConstants = new Object[baseLength];
+		for(int i=0;i<constantPositions.length;++i) {
+			baseBindingPattern[constantPositions[i]] = 'b';
+			baseConstants[constantPositions[i]] = constants[i];
+		}
+		int j = 0;
+		for(int i=0;i<variablePositions.length;++i) {
+			char c = baseBindingPattern[variablePositions[i]] = bindingPattern.charAt(i);
+			if(c == 'b')
+				baseConstants[constantPositions[i]] = givenConstants[j++];
+		}
+		assert(j == givenConstants.length);
+		return base.select(new String(baseBindingPattern), constants);
+	}
+
+	@SuppressWarnings("unchecked")
+    @Override
+	public Pair<String, String>[] getFields() {
+		Pair<String, String>[] baseFields = base.getFields();
+		Pair<String, String>[] result = new Pair[variablePositions.length];
+		for(int i=0;i<variablePositions.length;++i)
+			result[i] = baseFields[variablePositions[i]];
+		return result;
+	}	
+	
+}