org.springframework.batch.repeat.support
Class RepeatSynchronizationManager

java.lang.Object
  org.springframework.batch.repeat.support.RepeatSynchronizationManager

public final class RepeatSynchronizationManager
extends Object

Global variable support for repeat clients. Normally it is not necessary for clients to be aware of the surrounding environment because a RepeatCallback can always use the context it is passed by the enclosing RepeatOperations. But occasionally it might be helpful to have lower level access to the ongoing RepeatContext so we provide a global accessor here. The mutator methods (clear() and register(RepeatContext) should not be used except internally by RepeatOperations implementations.

Author:

Dave Syer

Method Summary

static RepeatContext	clear() Clear the current context at the end of a batch - should only be used by RepeatOperations implementations.
static RepeatContext	getContext() Getter for the current context.
static RepeatContext	register(RepeatContext context) Method for registering a context - should only be used by RepeatOperations implementations to ensure that getContext() always returns the correct value.
static void	setAncestorsCompleteOnly() Set current session and all ancestors (via parent) to complete
static void	setCompleteOnly() Convenience method to set the current repeat operation to complete if it exists.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getContext

public static RepeatContext getContext()

Getter for the current context. A context is shared by all items in the batch, so this method is intended to return the same context object independent of whether the callback is running synchronously or asynchronously with the surrounding RepeatOperations.

Returns:

the current RepeatContext or null if there is none (if we are not in a batch).

setCompleteOnly

public static void setCompleteOnly()

Convenience method to set the current repeat operation to complete if it exists.

register

public static RepeatContext register(RepeatContext context)

Method for registering a context - should only be used by RepeatOperations implementations to ensure that getContext() always returns the correct value.

Parameters:

context - a new context at the start of a batch.

Returns:

the old value if there was one.

clear

public static RepeatContext clear()

Clear the current context at the end of a batch - should only be used by RepeatOperations implementations.

Returns:

the old value if there was one.

setAncestorsCompleteOnly

public static void setAncestorsCompleteOnly()

Set current session and all ancestors (via parent) to complete.,