org.apache.derby.iapi.services.context
Class SystemContext

java.lang.Object
  extended byorg.apache.derby.iapi.services.context.ContextImpl
      extended byorg.apache.derby.iapi.services.context.SystemContext
All Implemented Interfaces:
Context

final class SystemContext
extends ContextImpl

A context that shuts the system down if it gets an StandardException with a severity greater than or equal to ExceptionSeverity.SYSTEM_SEVERITY or an exception that is not a StandardException.


Field Summary
 
Fields inherited from class org.apache.derby.iapi.services.context.ContextImpl
 
Constructor Summary
(package private) SystemContext(ContextManager cm)
           
 
Method Summary
 void cleanupOnError(java.lang.Throwable t)
          Contexts will be passed errors that are caught by the outer system when they are serious enough to require corrective action.
 
Methods inherited from class org.apache.derby.iapi.services.context.ContextImpl
appendErrorInfo, getContextManager, getIdName, isLastHandler, popMe, pushMe
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SystemContext

SystemContext(ContextManager cm)
Method Detail

cleanupOnError

public void cleanupOnError(java.lang.Throwable t)
Description copied from interface: Context
Contexts will be passed errors that are caught by the outer system when they are serious enough to require corrective action. They will be told what the error is, so that they can react appropriately. Most of the time, the contexts will react by either doing nothing or by removing themselves from the context manager. If there are no other references to the context, removing itself from the manager equates to freeing it.

Contexts must release all their resources before removing themselves from their context manager.

The context manager will "unwind" the contexts during cleanup in the reverse order they were placed on its global stack.

If error is an instance of StandardException then an implementation of this method may throw a new exception if and only if the new exception is an instance of StandardException that is more severe than the original error or the new exception is a not an instance of StandardException (e.g java.lang.NullPointerException).



Apache Derby V10.0 Engine Documentation - Copyright © 1997,2004 The Apache Software Foundation or its licensors, as applicable.