com.mybatisflex.core.relation

类 ToManyRelation<SelfEntity>

java.lang.Object

com.mybatisflex.core.relation.AbstractRelation<SelfEntity>

com.mybatisflex.core.relation.ToManyRelation<SelfEntity>

直接已知子类:

ManyToMany, OneToMany

public class ToManyRelation<SelfEntity>
extends AbstractRelation<SelfEntity>

字段概要

字段

限定符和类型	字段和说明
protected long	limit
protected String	mapKeyField
protected FieldWrapper	mapKeyFieldWrapper
protected String	orderBy
protected String	selfValueSplitBy

从类继承的字段 com.mybatisflex.core.relation.AbstractRelation

conditionColumn, dataSource, extraConditionParamKeys, extraConditionSql, joinSelfColumn, joinTable, joinTargetColumn, name, onlyQueryValueField, relationField, relationFieldWrapper, selectColumns, selfEntityClass, selfField, selfFieldWrapper, simpleName, targetEntityClass, targetField, targetFieldWrapper, targetSchema, targetTable, targetTableInfo, valueField

构造器概要

构造器

构造器和说明
ToManyRelation(String selfField, String targetSchema, String targetTable, String targetField, String valueField, String joinTable, String joinSelfColumn, String joinTargetColumn, String dataSource, Class<SelfEntity> selfEntityClass, Field relationField, String extraCondition, String[] selectColumns)

方法概要

限定符和类型	方法和说明
QueryWrapper	buildQueryWrapper(Set<Object> targetValues) 构建查询目标对象的 QueryWrapper
void	customizeQueryWrapper(QueryWrapper queryWrapper) 方便子类追加自定义的条件
static Class<? extends Map>	getMapWrapType(Class<?> type)
void	join(List<SelfEntity> selfEntities, List<?> targetObjectList, List<Row> mappingRows)
void	setMapKeyField(String mapKeyField)

从类继承的方法 com.mybatisflex.core.relation.AbstractRelation

getDataSource, getDefaultPrimaryProperty, getJoinSelfColumn, getJoinTable, getJoinTargetColumn, getMappingType, getName, getRelationField, getRelationFieldWrapper, getSelfEntityClass, getSelfField, getSelfFieldValues, getSelfFieldWrapper, getSimpleName, getTargetEntityClass, getTargetEntityClass, getTargetField, getTargetFieldWrapper, getTargetSchema, getTargetTable, getTargetTableInfo, getTargetTableWithSchema, getValueField, initExtraCondition, isOnlyQueryValueField, isRelationByMiddleTable, setDataSource, setJoinSelfColumn, setJoinTable, setJoinTargetColumn, setOnlyQueryValueField, setRelationField, setRelationFieldWrapper, setSelfEntityClass, setSelfField, setSelfFieldWrapper, setTargetEntityClass, setTargetField, setTargetFieldWrapper, setTargetSchema, setTargetTable, setTargetTableInfo, setValueField

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

mapKeyField

protected String mapKeyField

mapKeyFieldWrapper

protected FieldWrapper mapKeyFieldWrapper

orderBy

protected String orderBy

limit

protected long limit

selfValueSplitBy

protected String selfValueSplitBy

构造器详细资料

ToManyRelation

public ToManyRelation(String selfField,
                      String targetSchema,
                      String targetTable,
                      String targetField,
                      String valueField,
                      String joinTable,
                      String joinSelfColumn,
                      String joinTargetColumn,
                      String dataSource,
                      Class<SelfEntity> selfEntityClass,
                      Field relationField,
                      String extraCondition,
                      String[] selectColumns)

方法详细资料

getMapWrapType

public static Class<? extends Map> getMapWrapType(Class<?> type)

buildQueryWrapper

public QueryWrapper buildQueryWrapper(Set<Object> targetValues)

构建查询目标对象的 QueryWrapper

覆盖:

buildQueryWrapper 在类中 AbstractRelation<SelfEntity>

参数:

targetValues - 条件的值

返回:

QueryWrapper

customizeQueryWrapper

public void customizeQueryWrapper(QueryWrapper queryWrapper)

从类复制的说明: AbstractRelation

方便子类追加自定义的条件

覆盖:

customizeQueryWrapper 在类中 AbstractRelation<SelfEntity>

参数:

queryWrapper - 查询条件

join

public void join(List<SelfEntity> selfEntities,
                 List<?> targetObjectList,
                 List<Row> mappingRows)

指定者:

join 在类中 AbstractRelation<SelfEntity>

参数:

selfEntities - 当前的实体类列表

targetObjectList - 查询到的结果

mappingRows - 中间表的映射数据，非中间表查询的场景下，mappingRows 永远为 null

setMapKeyField

public void setMapKeyField(String mapKeyField)