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PlantUML is a component that allows to quickly write : * sequence diagram, * use case diagram, * class diagram, * activity diagram, * component diagram, * state diagram * object diagram

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         This extension point is used to register an Ecore resource against a namespace URI (Uniform Resource Identifier) in EMF's global package registry, <samp>EPackage.Registry.INSTANCE</samp>. The location URI may contain a fragment that specifies the location of a particlar package within the resource; if the fragment is absent, "#/" is assumed. When a model instance is loaded from its serialized form, this registry may be consulted in order to obtain the correct metamodel that is to be instantiated.
      
   

   
      
         
            
         
         
            
               
                  A fully qualified identifier of the target extension point.
               
            
         
         
            
               
                  An optional identifier of the extension instance.
               
            
         
         
            
               
                  An optional name of the extension instance.
               
            
         
      
   

   
      
         
            
               
                  A URI that uniquely identifies an Ecore package.
               
            
         
         
            
               
                  An absolute or plugin relative URI of the Ecore resource for the package.
               
            
         
      
   

   
      
         
      
      
         2.4.0
      
   

   
      
         
      
      
         Following is an example of how a dynamic package can be registered: 
<pre>
  <extension point="org.eclipse.emf.ecore.dynamic_package" >
     <resource uri="http://www.example.org/Example" location="model/Example.ecore#/"/> 
  </extension>
</pre>
      
   

   
      
         
      
      
         The value of the location attribute must represent an Ecore Resource.
<p>
An EMF package can also be registered from the source code with the <samp>EPackage.Registry.INSTANCE</samp> as follows:
</p>
<pre>
  EPackage.Registry.INSTANCE.put(companyPackage.getNsURI(), companyPackage); 
</pre>
      
   


   
      
         
      
      
         Copyright (c) 2008 IBM Corporation and others.<br>
All rights reserved. This program and the accompanying materials are made available under the terms of the Eclipse Public License v1.0 which accompanies this distribution, and is available at <a 
href="http://www.eclipse.org/legal/epl-v10.html">http://www.eclipse.org/legal/epl-v10.html</a>