public interface PartitionHandler
StepExecution. Implementations will need to create a partition with the
StepExecutionSplitter, and then use an execution fabric (grid, etc.), to execute the partitioned step. The results of the executions can be returned raw from remote workers to be aggregated by the caller.
|Modifier and Type||Method and Description|
Main entry point for
java.util.Collection<StepExecution> handle(StepExecutionSplitter stepSplitter, StepExecution stepExecution) throws java.lang.Exception
PartitionHandlerinterface. The splitter creates all the executions that need to be farmed out, along with their input parameters (in the form of their
ExecutionContext). The master step execution is used to identify the partition and group together the results logically.
stepSplitter- a strategy for generating a collection of
stepExecution- the master step execution for the whole partition
java.lang.Exception- if anything goes wrong. This allows implementations to be liberal and rely on the caller to translate an exception into a step failure as necessary.