java.lang.Object
- org.springframework.dao.support.DaoSupport
- - org.springframework.jdbc.core.support.JdbcDaoSupport
  - - org.springframework.batch.sample.common.StagingItemWriter<T>

所有已实现的接口:
StepExecutionListener, StepListener, ItemWriter<T>, org.springframework.beans.factory.InitializingBean
```
public class StagingItemWriter<T>
extends org.springframework.jdbc.core.support.JdbcDaoSupport
implements StepExecutionListener, ItemWriter<T>
```
Database ItemWriter implementing the process indicator pattern.

字段概要
字段
修饰符和类型字段说明
protected static java.lang.String DONE
protected static java.lang.String NEW
- 从类继承的字段 org.springframework.dao.support.DaoSupport
  logger

构造器概要
构造器
构造器说明
StagingItemWriter()

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`ExitStatus`	`afterStep(StepExecution stepExecution)`	Give a listener a chance to modify the exit status from a step.
`void`	`beforeStep(StepExecution stepExecution)`	Initialize the state of the listener with the `StepExecution` from the current scope.
`protected void`	`initDao()`	Check mandatory properties.
`void`	`setIncrementer(org.springframework.jdbc.support.incrementer.DataFieldMaxValueIncrementer incrementer)`	Setter for the key generator for the staging table.
`void`	`write(java.util.List<? extends T> items)`	Serialize the item to the staging table, and add a NEW processed flag.

从类继承的方法 org.springframework.jdbc.core.support.JdbcDaoSupport
checkDaoConfig, createJdbcTemplate, getConnection, getDataSource, getExceptionTranslator, getJdbcTemplate, initTemplateConfig, releaseConnection, setDataSource, setJdbcTemplate

从类继承的方法 org.springframework.dao.support.DaoSupport
afterPropertiesSet

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 字段详细资料
  - NEW
```
protected static final java.lang.String NEW
```
    另请参阅:
    常量字段值
  - DONE
```
protected static final java.lang.String DONE
```
    另请参阅:
    常量字段值
- 构造器详细资料
  - StagingItemWriter
```
public StagingItemWriter()
```
- 方法详细资料
  - initDao
```
protected void initDao()
                throws java.lang.Exception
```
    Check mandatory properties.
    覆盖:
    initDao 在类中 org.springframework.dao.support.DaoSupport
    抛出:
    java.lang.Exception
    另请参阅:
    DaoSupport.initDao()
  - setIncrementer
```
public void setIncrementer(org.springframework.jdbc.support.incrementer.DataFieldMaxValueIncrementer incrementer)
```
    Setter for the key generator for the staging table.
    参数:
    incrementer - the DataFieldMaxValueIncrementer to set
  - write
```
public void write(java.util.List<? extends T> items)
```
    Serialize the item to the staging table, and add a NEW processed flag.
    指定者:
    write 在接口中 ItemWriter<T>
    参数:
    items - items to be written
    另请参阅:
    ItemWriter.write(java.util.List)
  - afterStep
```
public ExitStatus afterStep(StepExecution stepExecution)
```
    从接口复制的说明: StepExecutionListener
    Give a listener a chance to modify the exit status from a step. The value returned will be combined with the normal exit status using ExitStatus.and(ExitStatus). Called after execution of step's processing logic (both successful or failed). Throwing exception in this method has no effect, it will only be logged.
    指定者:
    afterStep 在接口中 StepExecutionListener
    参数:
    stepExecution - StepExecution instance.
    返回:
    an ExitStatus to combine with the normal value. Return null to leave the old value unchanged.
  - beforeStep
```
public void beforeStep(StepExecution stepExecution)
```
    从接口复制的说明: StepExecutionListener
    Initialize the state of the listener with the StepExecution from the current scope.
    指定者:
    beforeStep 在接口中 StepExecutionListener
    参数:
    stepExecution - instance of StepExecution.

修饰符和类型	字段	说明
`protected static java.lang.String`	`DONE`
`protected static java.lang.String`	`NEW`

类 StagingItemWriter<T>

字段概要

从类继承的字段 org.springframework.dao.support.DaoSupport

构造器概要

方法概要

从类继承的方法 org.springframework.jdbc.core.support.JdbcDaoSupport

从类继承的方法 org.springframework.dao.support.DaoSupport

从类继承的方法 java.lang.Object

字段详细资料

NEW

DONE

构造器详细资料

StagingItemWriter

方法详细资料

initDao

setIncrementer

write

afterStep

beforeStep