1 files changed, 63 insertions, 0 deletions

diff --git a/subprojects/viatra-runtime-rete/src/main/java/tools/refinery/viatra/runtime/rete/single/TimelyProductionNode.java b/subprojects/viatra-runtime-rete/src/main/java/tools/refinery/viatra/runtime/rete/single/TimelyProductionNode.java
new file mode 100644
index 00000000..82640948
--- /dev/null
+++ b/subprojects/viatra-runtime-rete/src/main/java/tools/refinery/viatra/runtime/rete/single/TimelyProductionNode.java
@@ -0,0 +1,63 @@
+/*******************************************************************************
+ * Copyright (c) 2010-2019, Tamas Szabo, 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.rete.single;
+
+import java.util.Iterator;
+import java.util.Map;
+
+import tools.refinery.viatra.runtime.matchers.tuple.Tuple;
+import tools.refinery.viatra.runtime.rete.network.ProductionNode;
+import tools.refinery.viatra.runtime.rete.network.ReteContainer;
+import tools.refinery.viatra.runtime.rete.traceability.CompiledQuery;
+import tools.refinery.viatra.runtime.rete.traceability.TraceInfo;
+/**
+ * Differential dataflow implementation of the Production node, based on {@link TimelyUniquenessEnforcerNode}.
+ *
+ * @author Tamas Szabo
+ * @noinstantiate This class is not intended to be instantiated by clients.
+ * @since 2.3
+ */
+public class TimelyProductionNode extends TimelyUniquenessEnforcerNode implements ProductionNode {
+
+    protected final Map<String, Integer> posMapping;
+
+    public TimelyProductionNode(final ReteContainer reteContainer, final Map<String, Integer> posMapping) {
+        super(reteContainer, posMapping.size());
+        this.posMapping = posMapping;
+    }
+
+    @Override
+    public Map<String, Integer> getPosMapping() {
+        return this.posMapping;
+    }
+
+    @Override
+    public Iterator<Tuple> iterator() {
+        return this.memory.keySet().iterator();
+    }
+
+    @Override
+    public void acceptPropagatedTraceInfo(final TraceInfo traceInfo) {
+        if (traceInfo.propagateToProductionNodeParentAlso()) {
+            super.acceptPropagatedTraceInfo(traceInfo);
+        }
+    }
+
+    @Override
+    public String toString() {
+        for (final TraceInfo traceInfo : this.traceInfos) {
+            if (traceInfo instanceof CompiledQuery) {
+                final String patternName = ((CompiledQuery) traceInfo).getPatternName();
+                return String.format(this.getClass().getName() + "<%s>=%s", patternName, super.toString());
+            }
+        }
+        return super.toString();
+    }
+
+}