DPML Notify

[mcconnell AT dpml.net]

Author: mcconnell AT dpml.net
Date: Fri Apr  1 03:13:39 2005
New Revision: 2186

Added:
   
development/main/metro/composition/api/src/main/net/dpml/composition/data/NullEntryDirective.java
Log:
Add a NullEntryDirective enabling the explicit declaration of a undefined 
entry as part of a complete profile.  This significantly simplifies the 
assumptions during build time and lets us work on the basis of a one-to-one 
mapping of request entry descriptors and their corresponding entry directives.

Added: 
development/main/metro/composition/api/src/main/net/dpml/composition/data/NullEntryDirective.java
==============================================================================
--- (empty file)
+++ 
development/main/metro/composition/api/src/main/net/dpml/composition/data/NullEntryDirective.java
   Fri Apr  1 03:13:39 2005
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2004 Stephen J. McConnell.
+ *
+ * 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 net.dpml.composition.data;
+
+import net.dpml.lang.NullArgumentException;
+
+/**
+ * A null entry directive is a diective that declares that a operational 
directive 
+ * is required.  Typically a null directive will be used when a context 
management
+ * framrework is present enabling replace of the null directive with a 
funtional 
+ * directive.
+ *
+ * @author <a href="mailto:dev-dpml AT lists.ibiblio.org";>The Digital Product 
Meta Library</a>
+ * @version $Id: EntryDirective.java 2119 2005-03-23 02:04:46Z 
mcconnell AT dpml.net $
+ */
+public class NullEntryDirective extends EntryDirective
+{
+    /**
+     * Creation of a new null entry directive for a supplied entry key.
+     * @param key the entry key
+     * @exception NullArgumentException if the key is null.
+     */
+    public NullEntryDirective( final String key, final String urn )
+        throws NullArgumentException
+    {
+        super( key );
+    }
+
+}