org.springframework.batch.core.step.job
Class DefaultJobParametersExtractor

java.lang.Object
  org.springframework.batch.core.step.job.DefaultJobParametersExtractor

All Implemented Interfaces:

JobParametersExtractor

public class DefaultJobParametersExtractor
extends java.lang.Object
implements JobParametersExtractor

Simple implementation of JobParametersExtractor which pulls parameters with named keys out of the step execution context and the job parameters of the surrounding job.

Author:

Dave Syer

Constructor Summary

DefaultJobParametersExtractor()

Method Summary

JobParameters	getJobParameters(Job job, StepExecution stepExecution) Extract job parameters from the step execution, for example from the execution context or other properties.
void	setKeys(java.lang.String[] keys) The key names to pull out of the execution context or job parameters, if they exist.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultJobParametersExtractor

public DefaultJobParametersExtractor()

Method Detail

setKeys

public void setKeys(java.lang.String[] keys)

The key names to pull out of the execution context or job parameters, if they exist. If a key doesn't exist in the execution context then the job parameters from the enclosing job execution are tried, and if there is nothing there either then no parameter is extracted. Key names ending with (long), (int), (double), (date) or (string) will be assumed to refer to values of the respective type and assigned to job parameters accordingly (there will be an error if they are not of the right type). Without a special suffix in that form a parameter is assumed to be of type String.

Parameters:

keys - the keys to set

getJobParameters

public JobParameters getJobParameters(Job job,
                                      StepExecution stepExecution)

Description copied from interface: JobParametersExtractor

Extract job parameters from the step execution, for example from the execution context or other properties.

Specified by:

getJobParameters in interface JobParametersExtractor

Parameters:

job - a Job

stepExecution - a StepExecution

Returns:

some JobParameters

See Also:

JobParametersExtractor#getJobParameters(StepExecution)