Package cn.lm.mybatis.mapper.additional.update.differ

Class UpdateByDifferProvider

java.lang.Object

cn.lm.mybatis.mapper.mapperhelper.MapperTemplate

cn.lm.mybatis.mapper.additional.update.differ.UpdateByDifferProvider

public class UpdateByDifferProvider
extends MapperTemplate

Author:

liuzh

Field Summary

Fields

Modifier and Type	Field	Description
static final String	NEWER
static final String	OLD

Fields inherited from class cn.lm.mybatis.mapper.mapperhelper.MapperTemplate

entityClassMap, mapperClass, mapperHelper, methodMap

Constructor Summary

Constructors

Constructor	Description
UpdateByDifferProvider(Class<?> mapperClass, MapperHelper mapperHelper)

Method Summary

Modifier and Type	Method	Description
String	getIfNotEqual(EntityColumn column, String contents)	判断自动!
String	updateByDiffer(org.apache.ibatis.mapping.MappedStatement ms)	差异更新
String	updateSetColumnsByDiffer(Class<?> entityClass)	update set列
String	wherePKColumns(Class<?> entityClass, boolean useVersion)	where主键条件
String	whereVersion(Class<?> entityClass)	乐观锁字段条件

Methods inherited from class cn.lm.mybatis.mapper.mapperhelper.MapperTemplate

addMethodMap, createSqlSource, dynamicSQL, getConfig, getEntityClass, getIDENTITY, getIDENTITY, isBEFORE, isCheckExampleEntityClass, isNotEmpty, setResultType, setSqlSource, setSqlSource, supportMethod, tableName

Methods inherited from class java.lang.Object

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

Field Details

OLD

public static final String OLD

See Also:

• Constant Field Values

NEWER

public static final String NEWER

See Also:

• Constant Field Values

Constructor Details

UpdateByDifferProvider

public UpdateByDifferProvider(Class<?> mapperClass,
 MapperHelper mapperHelper)

Method Details

updateByDiffer

public String updateByDiffer(org.apache.ibatis.mapping.MappedStatement ms)

差异更新

Parameters:

ms -

wherePKColumns

public String wherePKColumns(Class<?> entityClass,
 boolean useVersion)

where主键条件

Parameters:

entityClass -

Returns:

whereVersion

public String whereVersion(Class<?> entityClass)

乐观锁字段条件

Parameters:

entityClass -

Returns:

updateSetColumnsByDiffer

public String updateSetColumnsByDiffer(Class<?> entityClass)

update set列

Parameters:

entityClass -

Returns:

getIfNotEqual

public String getIfNotEqual(EntityColumn column,
 String contents)

判断自动!=null的条件结构

Parameters:

column -

contents -

Returns: