com.dynamic.sql.model

Class DefaultKeyMapping<T,C>

java.lang.Object

com.dynamic.sql.model.DefaultKeyMapping<T,C>

Type Parameters:

T - 主表类型，例如 Category

C - 子表类型，例如 Product

All Implemented Interfaces:

KeyMapping<T,C>

public class DefaultKeyMapping<T,C>
extends Object
implements KeyMapping<T,C>

KeyMapping 的默认实现，用于表示主表与子表的键映射关系。

Constructor Summary

Constructors

Constructor and Description
DefaultKeyMapping(FieldFn<T,?> parentKey, FieldFn<C,?> childKey)

Method Summary

Modifier and Type	Method and Description
FieldFn<C,?>	childKey() 获取子表用于关联的键（通常是外键字段）。
FieldFn<T,?>	parentKey() 获取主表用于关联的键（通常是主键字段）。

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.dynamic.sql.model.KeyMapping

of

Constructor Detail

DefaultKeyMapping

public DefaultKeyMapping(FieldFn<T,?> parentKey,
                         FieldFn<C,?> childKey)

Method Detail

parentKey

public FieldFn<T,?> parentKey()

Description copied from interface: KeyMapping

获取主表用于关联的键（通常是主键字段）。

Specified by:

parentKey in interface KeyMapping<T,C>

Returns:

主表字段的方法引用，例如 Category::getCategoryId

childKey

public FieldFn<C,?> childKey()

Description copied from interface: KeyMapping

获取子表用于关联的键（通常是外键字段）。

Specified by:

childKey in interface KeyMapping<T,C>

Returns:

子表字段的方法引用，例如 Product::getCategoryId