1 files changed, 83 insertions, 0 deletions
diff --git a/qpid/java/client/src/main/java/org/apache/qpid/collections/keyvalue/AbstractKeyValue.java b/qpid/java/client/src/main/java/org/apache/qpid/collections/keyvalue/AbstractKeyValue.java
new file mode 100644
index 0000000000..a7ca67ad15
--- /dev/null
+++ b/qpid/java/client/src/main/java/org/apache/qpid/collections/keyvalue/AbstractKeyValue.java
@@ -0,0 +1,83 @@
+/*
+ *  Copyright 2003-2006 The Apache Software Foundation
+ *
+ *  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 org.apache.qpid.collections.keyvalue;
+
+import org.apache.qpid.collections.KeyValue;
+
+
+/**
+ * Abstract pair class to assist with creating <code>KeyValue</code>
+ * and {@link java.util.Map.Entry Map.Entry} implementations.
+ *
+ * @since Commons Collections 3.0
+ * @version $Revision$ $Date$
+ * 
+ * @author James Strachan
+ * @author Michael A. Smith
+ * @author Neil O'Toole
+ * @author Stephen Colebourne
+ */
+public abstract class AbstractKeyValue implements KeyValue {
+
+    /** The key */
+    protected Object key;
+    /** The value */
+    protected Object value;
+
+    /**
+     * Constructs a new pair with the specified key and given value.
+     *
+     * @param key  the key for the entry, may be null
+     * @param value  the value for the entry, may be null
+     */
+    protected AbstractKeyValue(Object key, Object value) {
+        super();
+        this.key = key;
+        this.value = value;
+    }
+
+    /**
+     * Gets the key from the pair.
+     *
+     * @return the key 
+     */
+    public Object getKey() {
+        return key;
+    }
+
+    /**
+     * Gets the value from the pair.
+     *
+     * @return the value
+     */
+    public Object getValue() {
+        return value;
+    }
+
+    /**
+     * Gets a debugging String view of the pair.
+     * 
+     * @return a String view of the entry
+     */
+    public String toString() {
+        return new StringBuffer()
+            .append(getKey())
+            .append('=')
+            .append(getValue())
+            .toString();
+    }
+
+}