org.springframework.batch.admin.service
Interface JobService

All Known Implementing Classes:

SimpleJobService

public interface JobService

Interface for general purpose monitoring and management of Batch jobs. The features here can generally be composed from existing Spring Batch interfaces (although for performance reasons, implementations might choose special-purpose optimisations via a relation database, for instance).

Author:

Dave Syer

Method Summary

JobExecution	abandon(Long jobExecutionId) Mark the JobExecution as ABANDONED.
int	countJobExecutions() Count the maximum number of executions that could be returned by listJobExecutions(int, int).
int	countJobExecutionsForJob(String jobName) Count the job executions in the repository for a job.
int	countJobInstances(String jobName) Count the number of job instances in the repository for a given job name.
int	countJobs() Count the total number of jobs that can be returned by listJobs(int, int).
int	countStepExecutionsForStep(String jobName, String stepName) Count the step executions in the repository for a given step name (or pattern).
JobExecution	getJobExecution(Long jobExecutionId) Get a JobExecution by id.
Collection<JobExecution>	getJobExecutionsForJobInstance(String jobName, Long jobInstanceId) Get all the job executions for a given job instance.
JobInstance	getJobInstance(long jobInstanceId) Get a job instance by id.
JobParameters	getLastJobParameters(String jobName) Get the last JobParameters used to execute a job successfully.
StepExecution	getStepExecution(Long jobExecutionId, Long stepExecutionId) Locate a StepExecution from its id and that of its parent JobExecution.
Collection<StepExecution>	getStepExecutions(Long jobExecutionId) Get the step executions for a given job execution (by id).
Collection<String>	getStepNamesForJob(String jobName) Get the names of the steps in a job (or a historical list of recent execution names if the Job is not launchable).
boolean	isIncrementable(String jobName) Check if a job has a JobParametersIncrementer.
boolean	isLaunchable(String jobName) Convenience method to determine if a job is available for launching.
JobExecution	launch(String jobName, JobParameters params) Launch a job with the parameters provided.
Collection<JobExecution>	listJobExecutions(int start, int count) List the job executions in descending order of creation (usually close to execution order).
Collection<JobExecution>	listJobExecutionsForJob(String jobName, int start, int count) List the job executions for a job in descending order of creation (usually close to execution order).
Collection<JobInstance>	listJobInstances(String jobName, int start, int count) List the job instances in descending order of creation (usually close to order of execution).
Collection<String>	listJobs(int start, int count) Query the job names in the system, either launchable or not.
Collection<StepExecution>	listStepExecutionsForStep(String jobName, String stepName, int start, int count) List the step executions for a step in descending order of creation (usually close to execution order).
JobExecution	restart(Long jobExecutionId) Launch a job with the parameters provided.
JobExecution	stop(Long jobExecutionId) Send a signal to a job execution to stop processing.
int	stopAll() Send a stop signal to all running job executions.

Method Detail

isLaunchable

boolean isLaunchable(String jobName)

Convenience method to determine if a job is available for launching. Job names returned from listJobs(int, int) might be in the repository, but not be launchable if the host application has no configuration for them.

Parameters:

jobName - the name of the job

Returns:

true if the job is available for launching

launch

JobExecution launch(String jobName,
                    JobParameters params)
                    throws NoSuchJobException,
                           JobExecutionAlreadyRunningException,
                           JobRestartException,
                           JobInstanceAlreadyCompleteException,
                           JobParametersInvalidException

Launch a job with the parameters provided. If an instance with the parameters provided has already failed (and is not abandoned) it will be restarted.

Parameters:

jobName - the job name

params - the JobParameters

Returns:

the resulting JobExecution if successful

Throws:

NoSuchJobException

JobExecutionAlreadyRunningException

JobRestartException

JobInstanceAlreadyCompleteException

JobParametersInvalidException

getLastJobParameters

JobParameters getLastJobParameters(String jobName)
                                   throws NoSuchJobException

Get the last JobParameters used to execute a job successfully.

Parameters:

jobName - the name of the job

Returns:

the last parameters used to execute this job or empty if there are none

Throws:

NoSuchJobException

restart

JobExecution restart(Long jobExecutionId)
                     throws NoSuchJobExecutionException,
                            JobExecutionAlreadyRunningException,
                            JobRestartException,
                            JobInstanceAlreadyCompleteException,
                            NoSuchJobException,
                            JobParametersInvalidException

Launch a job with the parameters provided.

Parameters:

jobExecutionId - the job execution to restart

Returns:

the resulting JobExecution if successful

Throws:

NoSuchJobExecutionException

JobExecutionAlreadyRunningException

JobRestartException

JobInstanceAlreadyCompleteException

NoSuchJobException

JobParametersInvalidException

stop

JobExecution stop(Long jobExecutionId)
                  throws NoSuchJobExecutionException,
                         JobExecutionNotRunningException

Send a signal to a job execution to stop processing. This method does not guarantee that the processing will stop, only that the signal will be delivered. It is up to the individual Job and Step implementations to ensure that the signal is obeyed. In particular, if users provide a custom Tasklet to a Step it must check the signal in the JobExecution itself.

Parameters:

jobExecutionId - the job execution id to stop

Returns:

the JobExecution that was stopped

Throws:

NoSuchJobExecutionException

JobExecutionNotRunningException

abandon

JobExecution abandon(Long jobExecutionId)
                     throws NoSuchJobExecutionException,
                            JobExecutionAlreadyRunningException

Mark the JobExecution as ABANDONED. If a stop signal is ignored because the process died this is the best way to mark a job as finished with (as opposed to STOPPED). An abandoned job execution can be restarted, but a stopping one cannot.

Parameters:

jobExecutionId - the job execution id to abort

Returns:

the JobExecution that was aborted

Throws:

NoSuchJobExecutionException

JobExecutionAlreadyRunningException - if the job is running (it should be stopped first)

listJobs

Collection<String> listJobs(int start,
                            int count)

Query the job names in the system, either launchable or not. If not launchable, then there must be a history of the job having been launched previously in the JobRepository.

Parameters:

start - the start index of the job names to return

count - the maximum number of job names to return

Returns:

a collection of job names

countJobs

int countJobs()

Count the total number of jobs that can be returned by listJobs(int, int).

Returns:

the total number of jobs

getJobInstance

JobInstance getJobInstance(long jobInstanceId)
                           throws NoSuchJobInstanceException

Get a job instance by id.

Parameters:

jobInstanceId - the id of the instance

Returns:

a job instance

Throws:

NoSuchJobException

NoSuchJobInstanceException

listJobInstances

Collection<JobInstance> listJobInstances(String jobName,
                                         int start,
                                         int count)
                                         throws NoSuchJobException

List the job instances in descending order of creation (usually close to order of execution).

Parameters:

jobName - the name of the job

start - the index of the first to return

count - the maximum number of instances to return

Returns:

a collection of job instances

Throws:

NoSuchJobException

countJobInstances

int countJobInstances(String jobName)
                      throws NoSuchJobException

Count the number of job instances in the repository for a given job name.

Parameters:

jobName - the name of the job

Returns:

the number of job instances available

Throws:

NoSuchJobException

listJobExecutionsForJob

Collection<JobExecution> listJobExecutionsForJob(String jobName,
                                                 int start,
                                                 int count)
                                                 throws NoSuchJobException

List the job executions for a job in descending order of creation (usually close to execution order).

Parameters:

jobName - the job name

start - the start index of the first job execution

count - the maximum number of executions to return

Returns:

a collection of JobExecution

Throws:

NoSuchJobException

countJobExecutionsForJob

int countJobExecutionsForJob(String jobName)
                             throws NoSuchJobException

Count the job executions in the repository for a job.

Parameters:

jobName - the job name

Returns:

the number of executions

Throws:

NoSuchJobException

getJobExecutionsForJobInstance

Collection<JobExecution> getJobExecutionsForJobInstance(String jobName,
                                                        Long jobInstanceId)
                                                        throws NoSuchJobException

Get all the job executions for a given job instance. On a sunny day there would be only one. If there have been failures and restarts there may be many, and they will be listed in reverse order of primary key.

Parameters:

jobName - the name of the job

jobInstanceId - the id of the job instance

Returns:

all the job executions

Throws:

NoSuchJobException

listJobExecutions

Collection<JobExecution> listJobExecutions(int start,
                                           int count)

List the job executions in descending order of creation (usually close to execution order).

Parameters:

start - the index of the first execution to return

count - the maximum number of executions

Returns:

a collection of JobExecution

countJobExecutions

int countJobExecutions()

Count the maximum number of executions that could be returned by listJobExecutions(int, int).

Returns:

the number of job executions in the job repository

getJobExecution

JobExecution getJobExecution(Long jobExecutionId)
                             throws NoSuchJobExecutionException

Get a JobExecution by id.

Parameters:

jobExecutionId - the job execution id

Returns:

the JobExecution

Throws:

NoSuchJobExecutionException

getStepExecutions

Collection<StepExecution> getStepExecutions(Long jobExecutionId)
                                            throws NoSuchJobExecutionException

Get the step executions for a given job execution (by id).

Parameters:

jobExecutionId - the parent job execution id

Returns:

the step executions for the job execution

Throws:

NoSuchJobExecutionException

listStepExecutionsForStep

Collection<StepExecution> listStepExecutionsForStep(String jobName,
                                                    String stepName,
                                                    int start,
                                                    int count)
                                                    throws NoSuchStepException

List the step executions for a step in descending order of creation (usually close to execution order).

Parameters:

jobName - the name of the job associated with the step (or a pattern with wildcards)

stepName - the step name (or a pattern with wildcards)

start - the start index of the first execution

count - the maximum number of executions to return

Returns:

a collection of StepExecution

Throws:

NoSuchStepException

countStepExecutionsForStep

int countStepExecutionsForStep(String jobName,
                               String stepName)
                               throws NoSuchStepException

Count the step executions in the repository for a given step name (or pattern).

Parameters:

jobName - the job name (or a pattern with wildcards)

stepName - the step name (or a pattern with wildcards)

Returns:

the number of executions

Throws:

NoSuchStepException

getStepExecution

StepExecution getStepExecution(Long jobExecutionId,
                               Long stepExecutionId)
                               throws NoSuchStepExecutionException,
                                      NoSuchJobExecutionException

Locate a StepExecution from its id and that of its parent JobExecution.

Parameters:

jobExecutionId - the job execution id

stepExecutionId - the step execution id

Returns:

the StepExecution

Throws:

NoSuchStepExecutionException

NoSuchJobExecutionException

stopAll

int stopAll()

Send a stop signal to all running job executions.

Returns:

the number of executions affected

isIncrementable

boolean isIncrementable(String jobName)

Check if a job has a JobParametersIncrementer.

Parameters:

jobName - the job name

Returns:

true if the job exists and has an incrementer

getStepNamesForJob

Collection<String> getStepNamesForJob(String jobName)
                                      throws NoSuchJobException

Get the names of the steps in a job (or a historical list of recent execution names if the Job is not launchable).

Parameters:

jobName - the name of the job

Throws:

NoSuchJobException - if the job name cannot be located