Job (Spring Batch 4.1.4.RELEASE API)

所有已知实现类:
AbstractJob, FlowJob, GroupAwareJob, JsrFlowJob, SimpleJob
```
public interface Job
```
Batch domain object representing a job. Job is an explicit abstraction representing the configuration of a job specified by a developer. It should be noted that restart policy is applied to the job as a whole and not to a step.
作者:
Dave Syer, Mahmoud Ben Hassine

方法概要

所有方法实例方法抽象方法
修饰符和类型	方法	说明
`void`	`execute(JobExecution execution)`	Run the `JobExecution` and update the meta information like status and statistics as necessary.
`JobParametersIncrementer`	`getJobParametersIncrementer()`	If clients need to generate new parameters for the next execution in a sequence they can use this incrementer.
`JobParametersValidator`	`getJobParametersValidator()`	A validator for the job parameters of a `JobExecution`.
`java.lang.String`	`getName()`
`boolean`	`isRestartable()`	Flag to indicate if this job can be restarted, at least in principle.

- 方法详细资料
  - getName
```
java.lang.String getName()
```
  - isRestartable
```
boolean isRestartable()
```
    Flag to indicate if this job can be restarted, at least in principle.
    返回:
    true if this job can be restarted after a failure
  - execute
```
void execute(JobExecution execution)
```
    Run the JobExecution and update the meta information like status and statistics as necessary. This method should not throw any exceptions for failed execution. Clients should be careful to inspect the JobExecution status to determine success or failure.
    参数:
    execution - a JobExecution
  - getJobParametersIncrementer
```
@Nullable
JobParametersIncrementer getJobParametersIncrementer()
```
    If clients need to generate new parameters for the next execution in a sequence they can use this incrementer. The return value may be null, in the case that this job does not have a natural sequence.
    返回:
    in incrementer to be used for creating new parameters
  - getJobParametersValidator
```
JobParametersValidator getJobParametersValidator()
```
    A validator for the job parameters of a JobExecution. Clients of a Job may need to validate the parameters for a launch, before or during the execution.
    返回:
    a validator that can be used to check parameter values (never null)