java.lang.Object
- org.springframework.batch.item.database.JdbcBatchItemWriter<T>

所有已实现的接口:
ItemWriter<T>, org.springframework.beans.factory.InitializingBean
```
public class JdbcBatchItemWriter<T>
extends java.lang.Object
implements ItemWriter<T>, org.springframework.beans.factory.InitializingBean
```
ItemWriter that uses the batching features from NamedParameterJdbcTemplate to execute a batch of statements for all items provided.
The user must provide an SQL query and a special callback for either of ItemPreparedStatementSetter or ItemSqlParameterSourceProvider. You can use either named parameters or the traditional '?' placeholders. If you use the named parameter support then you should provide a ItemSqlParameterSourceProvider, otherwise you should provide a ItemPreparedStatementSetter. This callback would be responsible for mapping the item to the parameters needed to execute the SQL statement.
It is expected that write(List) is called inside a transaction.
The writer is thread-safe after its properties are set (normal singleton behavior), so it can be used to write in multiple concurrent transactions.
从以下版本开始:
2.0
作者:
Dave Syer, Thomas Risberg, Michael Minella

字段概要
字段
修饰符和类型字段说明
protected static org.apache.commons.logging.Log logger

构造器概要
构造器
构造器说明
JdbcBatchItemWriter()

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
`void`	`afterPropertiesSet()`	Check mandatory properties - there must be a SimpleJdbcTemplate and an SQL statement plus a parameter source.
`void`	`setAssertUpdates(boolean assertUpdates)`	Public setter for the flag that determines whether an assertion is made that all items cause at least one row to be updated.
`void`	`setDataSource(javax.sql.DataSource dataSource)`	Public setter for the data source for injection purposes.
`void`	`setItemPreparedStatementSetter(ItemPreparedStatementSetter<T> preparedStatementSetter)`	Public setter for the `ItemPreparedStatementSetter`.
`void`	`setItemSqlParameterSourceProvider(ItemSqlParameterSourceProvider<T> itemSqlParameterSourceProvider)`	Public setter for the `ItemSqlParameterSourceProvider`.
`void`	`setJdbcTemplate(org.springframework.jdbc.core.namedparam.NamedParameterJdbcOperations namedParameterJdbcTemplate)`	Public setter for the `NamedParameterJdbcOperations`.
`void`	`setSql(java.lang.String sql)`	Public setter for the query string to execute on write.
`void`	`write(java.util.List<? extends T> items)`	Process the supplied data element.

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
  - logger
```
protected static final org.apache.commons.logging.Log logger
```
- 构造器详细资料
  - JdbcBatchItemWriter
```
public JdbcBatchItemWriter()
```
- 方法详细资料
  - setAssertUpdates
```
public void setAssertUpdates(boolean assertUpdates)
```
    Public setter for the flag that determines whether an assertion is made that all items cause at least one row to be updated.
    参数:
    assertUpdates - the flag to set. Defaults to true;
  - setSql
```
public void setSql(java.lang.String sql)
```
    Public setter for the query string to execute on write. The parameters should correspond to those known to the ItemPreparedStatementSetter.
    参数:
    sql - the query to set
  - setItemPreparedStatementSetter
```
public void setItemPreparedStatementSetter(ItemPreparedStatementSetter<T> preparedStatementSetter)
```
    Public setter for the ItemPreparedStatementSetter.
    参数:
    preparedStatementSetter - the ItemPreparedStatementSetter to set. This is required when using traditional '?' placeholders for the SQL statement.
  - setItemSqlParameterSourceProvider
```
public void setItemSqlParameterSourceProvider(ItemSqlParameterSourceProvider<T> itemSqlParameterSourceProvider)
```
    Public setter for the ItemSqlParameterSourceProvider.
    参数:
    itemSqlParameterSourceProvider - the ItemSqlParameterSourceProvider to set. This is required when using named parameters for the SQL statement and the type to be written does not implement Map.
  - setDataSource
```
public void setDataSource(javax.sql.DataSource dataSource)
```
    Public setter for the data source for injection purposes.
    参数:
    dataSource - DataSource to use for querying against
  - setJdbcTemplate
```
public void setJdbcTemplate(org.springframework.jdbc.core.namedparam.NamedParameterJdbcOperations namedParameterJdbcTemplate)
```
    Public setter for the NamedParameterJdbcOperations.
    参数:
    namedParameterJdbcTemplate - the NamedParameterJdbcOperations to set
  - afterPropertiesSet
```
public void afterPropertiesSet()
```
    Check mandatory properties - there must be a SimpleJdbcTemplate and an SQL statement plus a parameter source.
    指定者:
    afterPropertiesSet 在接口中 org.springframework.beans.factory.InitializingBean
  - write
```
public void write(java.util.List<? extends T> items)
           throws java.lang.Exception
```
    从接口复制的说明: ItemWriter
    Process the supplied data element. Will not be called with any null items in normal operation.
    指定者:
    write 在接口中 ItemWriter<T>
    参数:
    items - items to be written
    抛出:
    java.lang.Exception - if there are errors. The framework will catch the exception and convert or rethrow it as appropriate.

类 JdbcBatchItemWriter<T>

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

logger

构造器详细资料

JdbcBatchItemWriter

方法详细资料

setAssertUpdates

setSql

setItemPreparedStatementSetter

setItemSqlParameterSourceProvider

setDataSource

setJdbcTemplate

afterPropertiesSet

write