org.springframework.batch.repeat
Interface RepeatCallback

All Known Implementing Classes:

NestedRepeatCallback, StepContextRepeatCallback

public interface RepeatCallback

Callback interface for batch operations. Many simple processes will be able to use off-the-shelf implementations of this interface, enabling the application developer to concentrate on business logic.

Author:

Dave Syer

See Also:

RepeatOperations

Method Summary

RepeatStatus

doInIteration(RepeatContext context) Implementations return true if they can continue processing - e.g. there is a data source that is not yet exhausted.

Method Detail

doInIteration

RepeatStatus doInIteration(RepeatContext context)
                           throws Exception

Implementations return true if they can continue processing - e.g. there is a data source that is not yet exhausted. Exceptions are not necessarily fatal - processing might continue depending on the Exception type and the implementation of the caller.

Parameters:

context - the current context passed in by the caller.

Returns:

an RepeatStatus which is continuable if there is (or may be) more data to process.

Throws:

Exception - if there is a problem with the processing.