Package org.mybatis.spring.batch

Class MyBatisBatchItemWriter<T>

java.lang.Object

org.mybatis.spring.batch.MyBatisBatchItemWriter<T>

All Implemented Interfaces:

org.springframework.batch.item.ItemWriter<T>, org.springframework.beans.factory.InitializingBean

public class MyBatisBatchItemWriter<T>
extends Object
implements org.springframework.batch.item.ItemWriter<T>, org.springframework.beans.factory.InitializingBean

ItemWriter that uses the batching features from SqlSessionTemplate to execute a batch of statements for all items provided.

Provided to facilitate the migration from Spring-Batch iBATIS 2 writers to MyBatis 3.

The user must provide a MyBatis statement id that points to the SQL statement defined in the MyBatis.

It is expected that write(Chunk) is called inside a transaction. If it is not each statement call will be autocommitted and flushStatements will return no results.

The writer is thread safe after its properties are set (normal singleton behavior), so it can be used to write in multiple concurrent transactions.

Since:

1.1.0

Author:

Eduardo Macarron

Constructor Summary

Constructors

Constructor	Description
MyBatisBatchItemWriter()

Method Summary

Modifier and Type	Method	Description
void	afterPropertiesSet()	Check mandatory properties - there must be an SqlSession and a statementId.
void	setAssertUpdates(boolean assertUpdates)	Public setter for the flag that determines whether an assertion is made that number of BatchResult objects returned is one and all items cause at least one row to be updated.
void	setItemToParameterConverter(org.springframework.core.convert.converter.Converter<T,?> itemToParameterConverter)	Public setter for a converter that converting item to parameter object.
void	setSqlSessionFactory(org.apache.ibatis.session.SqlSessionFactory sqlSessionFactory)	Public setter for SqlSessionFactory for injection purposes.
void	setSqlSessionTemplate(SqlSessionTemplate sqlSessionTemplate)	Public setter for the SqlSessionTemplate.
void	setStatementId(String statementId)	Public setter for the statement id identifying the statement in the SqlMap configuration file.
void	write(org.springframework.batch.item.Chunk<? extends T> items)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

MyBatisBatchItemWriter

public MyBatisBatchItemWriter()

Method Details

setAssertUpdates

public void setAssertUpdates(boolean assertUpdates)

Public setter for the flag that determines whether an assertion is made that number of BatchResult objects returned is one and all items cause at least one row to be updated.

Parameters:

assertUpdates - the flag to set. Defaults to true;

setSqlSessionFactory

public void setSqlSessionFactory(org.apache.ibatis.session.SqlSessionFactory sqlSessionFactory)

Public setter for SqlSessionFactory for injection purposes.

Parameters:

sqlSessionFactory - a factory object for the SqlSession.

setSqlSessionTemplate

public void setSqlSessionTemplate(SqlSessionTemplate sqlSessionTemplate)

Public setter for the SqlSessionTemplate.

Parameters:

sqlSessionTemplate - a template object for use the SqlSession on the Spring managed transaction

setStatementId

public void setStatementId(String statementId)

Public setter for the statement id identifying the statement in the SqlMap configuration file.

Parameters:

statementId - the id for the statement

setItemToParameterConverter

public void setItemToParameterConverter(org.springframework.core.convert.converter.Converter<T,?> itemToParameterConverter)

Public setter for a converter that converting item to parameter object.

By default implementation, an item does not convert.

Parameters:

itemToParameterConverter - a converter that converting item to parameter object

Since:

2.0.0

afterPropertiesSet

public void afterPropertiesSet()

Check mandatory properties - there must be an SqlSession and a statementId.

Specified by:

afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean

write

public void write(org.springframework.batch.item.Chunk<? extends T> items)

Specified by:

write in interface org.springframework.batch.item.ItemWriter<T>