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From adri...@apache.org
Subject svn commit: r1084211 - /ofbiz/trunk/framework/start/src/org/ofbiz/base/start/StartupLoader.java
Date Tue, 22 Mar 2011 15:20:23 GMT
Author: adrianc
Date: Tue Mar 22 15:20:23 2011
New Revision: 1084211

URL: http://svn.apache.org/viewvc?rev=1084211&view=rev
Log:
StartupLoader.java JavaDocs - no functional change.

Modified:
    ofbiz/trunk/framework/start/src/org/ofbiz/base/start/StartupLoader.java

Modified: ofbiz/trunk/framework/start/src/org/ofbiz/base/start/StartupLoader.java
URL: http://svn.apache.org/viewvc/ofbiz/trunk/framework/start/src/org/ofbiz/base/start/StartupLoader.java?rev=1084211&r1=1084210&r2=1084211&view=diff
==============================================================================
--- ofbiz/trunk/framework/start/src/org/ofbiz/base/start/StartupLoader.java (original)
+++ ofbiz/trunk/framework/start/src/org/ofbiz/base/start/StartupLoader.java Tue Mar 22 15:20:23
2011
@@ -19,30 +19,44 @@
 package org.ofbiz.base.start;
 
 /**
- * StartupLoader - Interface for loading server startup classes
- *
+ * An object that loads server startup classes.
+ * <p>
+ * When OFBiz starts, the main thread will create the <code>StartupLoader</code>
instance and
+ * then call the loader's <code>load</code> method. If the method returns without
+ * throwing an exception the loader will be added to a list of initialized loaders.
+ * After all instances have been created and initialized, the main thread will call the
+ * <code>start</code> method of each loader in the list. When OFBiz shuts down,
a
+ * separate shutdown thread will call the <code>unload</code> method of each
loader.
+ * Implementations should anticipate asynchronous calls to the methods by different
+ * threads.
+ * </p>
+ * 
  */
 public interface StartupLoader {
 
     /**
-     * Load a startup class
+     * Load a startup class.
      *
-     * @param config Startup config
-     * @param args Input arguments
-     * @throws StartupException
+     * @param config Startup config.
+     * @param args Command-line arguments.
+     * @throws StartupException If an error was encountered. Throwing this exception
+     * will halt loader loading, so it should be thrown only when OFBiz can't
+     * operate without it.
      */
     public void load(Start.Config config, String args[]) throws StartupException;
 
     /**
-     * Start the startup class
-     * @throws StartupException
+     * Start the startup class. This method must not block - implementations
+     * that require thread blocking must create a separate thread and then return.
+     * 
+     * @throws StartupException If an error was encountered.
      */
     public void start() throws StartupException;
 
     /**
-     * Stop the container
+     * Stop the startup class. This method must not block.
      *
-     * @throws StartupException
+     * @throws StartupException If an error was encountered.
      */
     public void unload() throws StartupException;
 }



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