cvs commit: jakarta-avalon-excalibur/assembly/src/java/org/apache/excalibur/merlin/kernel Selector.java

[mcconnell]

mcconnell    2002/07/07 18:13:01

  Added:       assembly/src/java/org/apache/excalibur/merlin/kernel
                        Selector.java
  Log:
  moved from registry package to container package
  
  Revision  Changes    Path
  1.1                  
jakarta-avalon-excalibur/assembly/src/java/org/apache/excalibur/merlin/kernel/Selector.java
  
  Index: Selector.java
  ===================================================================
  /*
   * Copyright (C) The Apache Software Foundation. All rights reserved.
   *
   * This software is published under the terms of the Apache Software License
   * version 1.1, a copy of which has been included with this distribution in
   * the LICENSE.txt file.
   */
  
  package org.apache.excalibur.merlin.kernel;
  
  import org.apache.excalibur.meta.data.Profile;
  
  
  /**
   * Interface implemented by a service selection implementation mechanism.  Classes 
   * implementing the selector interface may be activated during the selection of 
   * candidate service providers in an autom assembly process.  A selector my be
   * declared via inclusion a implemetation class nameed 
<code>&lt;service-type&gt;Selector</code>.  
   * Alternatively, a component author may declare a selection class explicitly via a
   * service dependecy attribute with the attribute name of 
<code>avalon.service.selector</code>.
   *
   * @author <a href="mailto:[EMAIL PROTECTED]";>Stephen McConnell</a>
   * @version $Revision: 1.1 $ $Date: 2002/07/08 01:13:01 $
   */
  public interface Selector
  {
     /**
      * Returns the preferred profile form an available selection of candidate 
provider profiles.
      * @param facilities the set of profiles of potential service providers available 
in the 
      *   container hierachy
      * @param profiles the set of profiles of potential service providers contained 
with the 
      *   local container
      * @return the preferred provider or null if no satisfactory provider can be 
established 
      *    from the supplied profiles.
      */
      Profile select( Profile[] facilities, Profile[] profiles );
  }
  
  
  

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