1 files changed, 24 insertions, 0 deletions

diff --git a/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/internal/apiimpl/EngineContextFactory.java b/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/internal/apiimpl/EngineContextFactory.java
new file mode 100644
index 00000000..bed07ebf
--- /dev/null
+++ b/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/internal/apiimpl/EngineContextFactory.java
@@ -0,0 +1,24 @@
+/*******************************************************************************
+ * Copyright (c) 2010-2014, Bergmann Gabor, 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.internal.apiimpl;
+
+import org.apache.log4j.Logger;
+import tools.refinery.viatra.runtime.api.ViatraQueryEngine;
+import tools.refinery.viatra.runtime.api.scope.IEngineContext;
+import tools.refinery.viatra.runtime.api.scope.IIndexingErrorListener;
+
+/**
+ * Internal interface for a Scope to reveal model contents to the engine.
+ * 
+ * @author Bergmann Gabor
+ *
+ */
+public abstract class EngineContextFactory {
+    protected abstract IEngineContext createEngineContext(ViatraQueryEngine engine, IIndexingErrorListener errorListener, Logger logger);
+}