Class ResourcelessJobRepository
- All Implemented Interfaces:
JobRepository
JobRepository
implementation that does not use or store batch meta-data. It
is intended for use-cases where restartability is not required and where the execution
context is not involved in any way (like sharing data between steps through the
execution context, or partitioned steps where partitions meta-data is shared between
the manager and workers through the execution context, etc). This implementation holds a single job instance and a corresponding job execution that are suitable for one-time jobs executed in their own JVM. This job repository works with transactional steps as well as non-transactional steps (in which case, a
ResourcelessTransactionManager
can be used). This implementation is not thread-safe and should not be used in any concurrent environment.
- Since:
- 5.2.0
- Author:
- Mahmoud Ben Hassine
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
add
(StepExecution stepExecution) Save theStepExecution
and itsExecutionContext
.void
addAll
(Collection<StepExecution> stepExecutions) Save a collection ofStepExecution
s and eachExecutionContext
.createJobExecution
(String jobName, JobParameters jobParameters) createJobInstance
(String jobName, JobParameters jobParameters) Create a newJobInstance
with the name and job parameters provided.getLastJobExecution
(String jobName, JobParameters jobParameters) getLastStepExecution
(JobInstance jobInstance, String stepName) long
getStepExecutionCount
(JobInstance jobInstance, String stepName) boolean
isJobInstanceExists
(String jobName, JobParameters jobParameters) Check if an instance of this job already exists with the parameters provided.void
update
(JobExecution jobExecution) Update theJobExecution
(but not itsExecutionContext
).void
update
(StepExecution stepExecution) Update theStepExecution
(but not itsExecutionContext
).void
updateExecutionContext
(JobExecution jobExecution) Persist the updatedExecutionContext
of the givenJobExecution
.void
updateExecutionContext
(StepExecution stepExecution) Persist the updatedExecutionContext
s of the givenStepExecution
.Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface org.springframework.batch.core.repository.JobRepository
deleteJobExecution, deleteJobInstance, deleteStepExecution, findJobExecutions, findJobInstancesByName, getJobInstance, getJobNames
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Constructor Details
-
ResourcelessJobRepository
public ResourcelessJobRepository()
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Method Details
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isJobInstanceExists
Description copied from interface:JobRepository
Check if an instance of this job already exists with the parameters provided.- Specified by:
isJobInstanceExists
in interfaceJobRepository
- Parameters:
jobName
- the name of the jobjobParameters
- the parameters to match- Returns:
- true if a
JobInstance
already exists for this job name and job parameters
-
createJobInstance
Description copied from interface:JobRepository
Create a newJobInstance
with the name and job parameters provided.- Specified by:
createJobInstance
in interfaceJobRepository
- Parameters:
jobName
- logical name of the jobjobParameters
- parameters used to execute the job- Returns:
- the new
JobInstance
-
createJobExecution
Description copied from interface:JobRepository
Create a
JobExecution
for a givenJob
andJobParameters
. If matchingJobInstance
already exists, the job must be restartable and it's last JobExecution must *not* be completed. If matchingJobInstance
does not exist yet it will be created.If this method is run in a transaction (as it normally would be) with isolation level at
Isolation.REPEATABLE_READ
or better, then this method should block if another transaction is already executing it (for the sameJobParameters
and job name). The first transaction to complete in this scenario obtains a validJobExecution
, and others throwJobExecutionAlreadyRunningException
(or timeout). There are no such guarantees if theJobInstanceDao
andJobExecutionDao
do not respect the transaction isolation levels (e.g. if using a non-relational data-store, or if the platform does not support the higher isolation levels).- Specified by:
createJobExecution
in interfaceJobRepository
- Parameters:
jobName
- the name of the job that is to be executedjobParameters
- the runtime parameters for the job- Returns:
- a valid
JobExecution
for the arguments provided
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update
Description copied from interface:JobRepository
Update theJobExecution
(but not itsExecutionContext
).Preconditions:
JobExecution
must contain a validJobInstance
and be saved (have an id assigned).- Specified by:
update
in interfaceJobRepository
- Parameters:
jobExecution
-JobExecution
instance to be updated in the repo.
-
add
Description copied from interface:JobRepository
Save theStepExecution
and itsExecutionContext
. ID will be assigned - it is not permitted that an ID be assigned before calling this method. Instead, it should be left blank, to be assigned by aJobRepository
.Preconditions:
StepExecution
must have a validStep
.- Specified by:
add
in interfaceJobRepository
- Parameters:
stepExecution
-StepExecution
instance to be added to the repo.
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addAll
Description copied from interface:JobRepository
Save a collection ofStepExecution
s and eachExecutionContext
. The StepExecution ID will be assigned - it is not permitted that an ID be assigned before calling this method. Instead, it should be left blank, to be assigned byJobRepository
.Preconditions:
StepExecution
must have a validStep
.- Specified by:
addAll
in interfaceJobRepository
- Parameters:
stepExecutions
- collection ofStepExecution
instances to be added to the repo.
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update
Description copied from interface:JobRepository
Update theStepExecution
(but not itsExecutionContext
).Preconditions:
StepExecution
must be saved (have an id assigned).- Specified by:
update
in interfaceJobRepository
- Parameters:
stepExecution
-StepExecution
instance to be updated in the repo.
-
updateExecutionContext
Description copied from interface:JobRepository
Persist the updatedExecutionContext
s of the givenStepExecution
.- Specified by:
updateExecutionContext
in interfaceJobRepository
- Parameters:
stepExecution
-StepExecution
instance to be used to update the context.
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updateExecutionContext
Description copied from interface:JobRepository
Persist the updatedExecutionContext
of the givenJobExecution
.- Specified by:
updateExecutionContext
in interfaceJobRepository
- Parameters:
jobExecution
-JobExecution
instance to be used to update the context.
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getLastStepExecution
- Specified by:
getLastStepExecution
in interfaceJobRepository
- Parameters:
jobInstance
-JobInstance
instance containing the step executions.stepName
- the name of the step execution that might have run.- Returns:
- the last execution of step for the given job instance.
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getStepExecutionCount
- Specified by:
getStepExecutionCount
in interfaceJobRepository
- Parameters:
jobInstance
-JobInstance
instance containing the step executions.stepName
- the name of the step execution that might have run.- Returns:
- the execution count of the step within the given job instance.
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getLastJobExecution
- Specified by:
getLastJobExecution
in interfaceJobRepository
- Parameters:
jobName
- the name of the job that might have runjobParameters
- parameters identifying theJobInstance
- Returns:
- the last execution of job if exists, null otherwise
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