1 files changed, 33 insertions, 0 deletions

diff --git a/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/api/impl/BaseQueryGroup.java b/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/api/impl/BaseQueryGroup.java
new file mode 100644
index 00000000..b92727e7
--- /dev/null
+++ b/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/api/impl/BaseQueryGroup.java
@@ -0,0 +1,33 @@
+/*******************************************************************************
+ * Copyright (c) 2010-2012, Mark Czotter, Istvan Rath and Daniel Varro
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-v20.html.
+ * 
+ * SPDX-License-Identifier: EPL-2.0
+ *******************************************************************************/
+package tools.refinery.viatra.runtime.api.impl;
+
+import tools.refinery.viatra.runtime.api.AdvancedViatraQueryEngine;
+import tools.refinery.viatra.runtime.api.IQueryGroup;
+import tools.refinery.viatra.runtime.api.ViatraQueryEngine;
+
+/**
+ * Base implementation of {@link IQueryGroup}.
+ *
+ * @author Mark Czotter
+ *
+ */
+public abstract class BaseQueryGroup implements IQueryGroup {
+
+    @Override
+    public void prepare(ViatraQueryEngine engine) {
+        prepare(AdvancedViatraQueryEngine.from(engine));
+    }
+    
+    protected void prepare(AdvancedViatraQueryEngine engine) {
+        engine.prepareGroup(this, null /* default options */);
+    }
+    
+
+}