X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;ds=sidebyside;f=bundles%2Forg.simantics.db.layer0%2Fsrc%2Forg%2Fsimantics%2Fdb%2Flayer0%2Futil%2FRelationContextImpl.java;fp=bundles%2Forg.simantics.db.layer0%2Fsrc%2Forg%2Fsimantics%2Fdb%2Flayer0%2Futil%2FRelationContextImpl.java;h=558365ee24a4b0e1438478774d094f440349fbb4;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/RelationContextImpl.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/RelationContextImpl.java
new file mode 100644
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--- /dev/null
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/RelationContextImpl.java
@@ -0,0 +1,57 @@
+/*******************************************************************************
+ * 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.util;
+
+import org.simantics.db.RelationContext;
+import org.simantics.db.Resource;
+import org.simantics.db.Statement;
+
+final public class RelationContextImpl implements RelationContext {
+
+    final private Resource subject;
+    final private Statement statement;
+
+    public RelationContextImpl(Resource subject, Statement statement) {
+    	assert(subject != null);
+    	assert(statement != null);
+    	this.subject = subject;
+    	this.statement = statement;
+    }
+
+    @Override
+    public int hashCode() {
+        return subject.hashCode() + 31 * statement.hashCode();
+    }
+    
+    @Override
+    public boolean equals(Object object) {
+        if (this == object)
+            return true;
+        else if (object == null)
+            return false;
+        else if (RelationContextImpl.class != object.getClass())
+            return false;
+        RelationContextImpl r = (RelationContextImpl)object;
+        return subject.equals(r.subject) && statement.equals(r.statement);
+    }
+
+	@Override
+	public Resource getSubject() {
+		return subject;
+	}
+
+	@Override
+	public Statement getStatement() {
+		return statement;
+	}
+
+}