1 files changed, 97 insertions, 0 deletions

diff --git a/subprojects/viatra-runtime-localsearch/src/main/java/tools/refinery/viatra/runtime/localsearch/matcher/MatcherReference.java b/subprojects/viatra-runtime-localsearch/src/main/java/tools/refinery/viatra/runtime/localsearch/matcher/MatcherReference.java
new file mode 100644
index 00000000..6bf25192
--- /dev/null
+++ b/subprojects/viatra-runtime-localsearch/src/main/java/tools/refinery/viatra/runtime/localsearch/matcher/MatcherReference.java
@@ -0,0 +1,97 @@
+/*******************************************************************************
+ * Copyright (c) 2010-2015, Zoltan Ujhelyi, Marton Bur, 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.matcher;
+
+import java.util.Set;
+
+import tools.refinery.viatra.runtime.matchers.backend.QueryEvaluationHint;
+import tools.refinery.viatra.runtime.matchers.psystem.queries.PParameter;
+import tools.refinery.viatra.runtime.matchers.psystem.queries.PQuery;
+
+public class MatcherReference {
+    final PQuery query;
+    final Set<PParameter> adornment;
+    
+    /**
+     * Hints that can override the callee's own hints. This field is intentionally left out from hashCode and equals
+     */
+    final QueryEvaluationHint hints;
+        
+    /**
+     * @since 1.4
+     */
+    public MatcherReference(PQuery query, Set<PParameter> adornment, QueryEvaluationHint hints) {
+        super();
+        this.query = query;
+        this.adornment = adornment;
+        this.hints = hints;
+    }
+    
+    public MatcherReference(PQuery query, Set<PParameter> adornment){
+        this(query, adornment, null);
+    }
+    
+    public PQuery getQuery() {
+        return query;
+    }
+    public Set<PParameter> getAdornment() {
+        return adornment;
+    }
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        
+        result = prime * result + ((adornment == null) ? 0 : adornment.hashCode());
+        result = prime * result + ((query == null) ? 0 : query.hashCode());
+        return result;
+    }
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (getClass() != obj.getClass())
+            return false;
+        MatcherReference other = (MatcherReference) obj;
+        if (adornment == null) {
+            if (other.adornment != null)
+                return false;
+        } else if (!adornment.equals(other.adornment))
+            return false;
+        if (query == null) {
+            if (other.query != null)
+                return false;
+        } else if (!query.equals(other.query))
+            return false;
+        return true;
+    }
+    
+    /**
+     * @return the hints to override the called reference's own hints with. Can be null.
+     * @since 1.4
+     */
+    public QueryEvaluationHint getHints() {
+        return hints;
+    }
+    
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append(query.getFullyQualifiedName());
+        sb.append("(");
+        for(PParameter p : query.getParameters()){
+            sb.append(adornment.contains(p) ? "b" : "f");
+        }
+        sb.append(")");
+        return sb.toString();
+    }
+    
+}
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