1 files changed, 55 insertions, 0 deletions

diff --git a/subprojects/viatra-runtime-matchers/src/main/java/tools/refinery/viatra/runtime/matchers/context/common/BaseInputKeyWrapper.java b/subprojects/viatra-runtime-matchers/src/main/java/tools/refinery/viatra/runtime/matchers/context/common/BaseInputKeyWrapper.java
new file mode 100644
index 00000000..f9b05e5b
--- /dev/null
+++ b/subprojects/viatra-runtime-matchers/src/main/java/tools/refinery/viatra/runtime/matchers/context/common/BaseInputKeyWrapper.java
@@ -0,0 +1,55 @@
+/*******************************************************************************
+ * Copyright (c) 2010-2015, 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.matchers.context.common;
+
+import tools.refinery.viatra.runtime.matchers.context.IInputKey;
+
+
+/**
+ * An input key that is identified by a single wrapped object and the class of the wrapper. 
+ * @author Bergmann Gabor
+ *
+ */
+public abstract class BaseInputKeyWrapper<Wrapped> implements IInputKey {
+    protected Wrapped wrappedKey;
+
+    public BaseInputKeyWrapper(Wrapped wrappedKey) {
+        super();
+        this.wrappedKey = wrappedKey;
+    }
+
+    public Wrapped getWrappedKey() {
+        return wrappedKey;
+    }
+    
+    
+    @Override
+    public int hashCode() {
+        return ((wrappedKey == null) ? 0 : wrappedKey.hashCode());
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (!(this.getClass().equals(obj.getClass())))
+            return false;
+        BaseInputKeyWrapper other = (BaseInputKeyWrapper) obj;
+        if (wrappedKey == null) {
+            if (other.wrappedKey != null)
+                return false;
+        } else if (!wrappedKey.equals(other.wrappedKey))
+            return false;
+        return true;
+    }
+
+
+}