1 files changed, 41 insertions, 0 deletions

diff --git a/subprojects/viatra-runtime-localsearch/src/main/java/tools/refinery/viatra/runtime/localsearch/planner/PConstraintCategory.java b/subprojects/viatra-runtime-localsearch/src/main/java/tools/refinery/viatra/runtime/localsearch/planner/PConstraintCategory.java
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index 00000000..b98dd12e
--- /dev/null
+++ b/subprojects/viatra-runtime-localsearch/src/main/java/tools/refinery/viatra/runtime/localsearch/planner/PConstraintCategory.java
@@ -0,0 +1,41 @@
+/*******************************************************************************
+ * Copyright (c) 2010-2015, Marton Bur, Zoltan Ujhelyi, Akos Horvath, 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.localsearch.planner;
+
+
+/**
+ * Expresses the state of a PConstraint application 
+ * condition with respect to a given adornment.
+ * 
+ * @author Marton Bur
+ * @noreference This enum is not intended to be referenced by clients.
+ */
+public enum PConstraintCategory {
+    /*
+     * During plan creation an operation is considered a past 
+     * operation, if an already bound variable is free in the
+     * mask of the operation.
+     * (Mask of the operation: the required binding state of 
+     * the affected variables)
+     */
+    PAST, 
+    /*
+     * The binding states of the variables in the operation 
+     * mask correspond to the current binding states of the 
+     * variables in the search plan
+     */
+    PRESENT, 
+    /*
+     * There is at least one bound variable in the mask of 
+     * a future operation that is still free at the current 
+     * state of the plan. Also, a future operation can't be 
+     * PAST.
+     */
+    FUTURE;
+}