#70 Force initialization of default Viatra query backends

viatra · Mar 26, 2021 · c2bd11f · c2bd11f
1 parent d16dae1
commit c2bd11f
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/com.incquerylabs.v4md/src/main/com/incquerylabs/v4md/ViatraQueryAdapter.java b/com.incquerylabs.v4md/src/main/com/incquerylabs/v4md/ViatraQueryAdapter.java
@@ -18,6 +18,8 @@
 import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
 import org.eclipse.viatra.query.runtime.api.ViatraQueryEngineOptions;
 import org.eclipse.viatra.query.runtime.exception.ViatraQueryException;
+import org.eclipse.viatra.query.runtime.localsearch.matcher.integration.LocalSearchEMFBackendFactory;
+import org.eclipse.viatra.query.runtime.rete.matcher.ReteBackendFactory;
 
 import com.incquerylabs.v4md.internal.MagicDrawProjectScope;
 import com.incquerylabs.v4md.internal.NopQueryBackend;
@@ -37,6 +39,16 @@ public class ViatraQueryAdapter extends AdapterImpl {
 			"Cannot initialize VIATRA Query Engine until the project is loaded.";
 	private static final Logger LOGGER = Logger.getLogger(ViatraQueryAdapter.class);
 
+
+	static {
+		ViatraQueryEngineOptions.setSystemDefaultBackends(
+				ReteBackendFactory.INSTANCE, 
+				ReteBackendFactory.INSTANCE, 
+				LocalSearchEMFBackendFactory.INSTANCE
+		);
+	}
+
+
 	private Optional<AdvancedViatraQueryEngine> engine = Optional.empty();
 	private Project project;
 	private boolean engineDisposable = true;