Initial import

[jpf-core.git] / src / main / gov / nasa / jpf / util / ObjectSet.java

diff --git a/src/main/gov/nasa/jpf/util/ObjectSet.java b/src/main/gov/nasa/jpf/util/ObjectSet.java
new file mode 100644 (file)
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+++ b/src/main/gov/nasa/jpf/util/ObjectSet.java
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+/*
+ * Copyright (C) 2014, United States Government, as represented by the
+ * Administrator of the National Aeronautics and Space Administration.
+ * All rights reserved.
+ *
+ * The Java Pathfinder core (jpf-core) platform is licensed under the
+ * Apache License, Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ * 
+ *        http://www.apache.org/licenses/LICENSE-2.0. 
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and 
+ * limitations under the License.
+ */
+
+package gov.nasa.jpf.util;
+
+/**
+ * generic interface for object sets
+ * this one makes no guarantees about identity or value comparison
+ */
+public interface ObjectSet<E> extends Cloneable {
+
+  boolean add (E e);
+  boolean contains (E e);
+  boolean remove (E e);
+  
+  int size();
+  
+  ObjectSet<E> clone();
+}