X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.structural2%2Fsrc%2Forg%2Fsimantics%2Fstructural2%2Fqueries%2FConnectionSet.java;fp=bundles%2Forg.simantics.structural2%2Fsrc%2Forg%2Fsimantics%2Fstructural2%2Fqueries%2FConnectionSet.java;h=9591d8d30dfd4ed283941a9b0244222d1596ab23;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.structural2/src/org/simantics/structural2/queries/ConnectionSet.java b/bundles/org.simantics.structural2/src/org/simantics/structural2/queries/ConnectionSet.java
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index 000000000..9591d8d30
--- /dev/null
+++ b/bundles/org.simantics.structural2/src/org/simantics/structural2/queries/ConnectionSet.java
@@ -0,0 +1,102 @@
+/*******************************************************************************
+ * 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.structural2.queries;
+
+import gnu.trove.set.hash.THashSet;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Set;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.service.CollectionSupport;
+import org.simantics.structural.stubs.StructuralResource2;
+
+public class ConnectionSet {
+	
+    final Set<Resource> connections;
+    THashSet<Resource> joins;
+    THashSet<Resource> excluded;
+    THashSet<Resource> excludedJoins;
+    
+    StructuralResource2 sr;
+    
+//    public ConnectionSet() {
+//    	
+//    }
+    
+    public ConnectionSet(ReadGraph graph) {
+    	sr = StructuralResource2.getInstance(graph);
+    	connections = graph.getService(CollectionSupport.class).createSet();
+    }
+
+    public boolean excludeConnection(Resource connection) {
+        if (excluded == null)
+            excluded = new THashSet<Resource>();
+        return excluded.add(connection);
+    }
+
+    public boolean excludeJoin(Resource join) {
+        if (excludedJoins == null)
+        	excludedJoins = new THashSet<Resource>();
+        return excludedJoins.add(join);
+    }
+    
+    public boolean excludeConnections(Collection<Resource> connections) {
+        if (connections.isEmpty())
+            return false;
+        if (excluded == null)
+            excluded = new THashSet<Resource>();
+        return excluded.addAll(connections);
+    }
+
+    public boolean isExcluded(Resource connection) {
+        return excluded != null && excluded.contains(connection);
+    }
+
+    public boolean isJoinExcluded(Resource join) {
+        return excludedJoins != null && excludedJoins.contains(join);
+    }
+
+    public void addConnection(ReadGraph g, Resource connection) throws DatabaseException {
+        if(isExcluded(connection))
+            return;
+        if(connections.add(connection)) {
+        	if(sr == null) sr = StructuralResource2.getInstance(g);
+            for(Resource join : g.getObjects(connection, sr.IsJoinedBy))
+                addJoin(g, join);
+        }
+    }
+
+    public void addJoin(ReadGraph g, Resource join) throws DatabaseException {
+        if(isJoinExcluded(join))
+            return;
+        if (joins == null)
+        	joins = new THashSet<Resource>();
+        if(joins.add(join)) {
+        	if(sr == null) sr = StructuralResource2.getInstance(g);
+            for(Resource connection : g.getObjects(join, sr.Joins))
+                addConnection(g, connection);
+        }
+    }
+
+    public Set<Resource> getConnections() {
+        return connections;
+    }
+
+    public Set<Resource> getJoins() {
+    	if(joins == null) return Collections.emptySet();
+        return joins;
+    }
+}