cn.crane4j.annotation

枚举 MappingType

java.lang.Object

java.lang.Enum<MappingType>

cn.crane4j.annotation.MappingType

所有已实现的接口:

Serializable, Comparable<MappingType>

public enum MappingType
extends Enum<MappingType>

The mapping relationship between the object returned by the method and the target object.

作者:

huangchengxing

另请参阅:

cn.crane4j.core.container.MethodInvokerContainer;, ContainerMethod.type()

枚举常量概要

枚举常量

枚举常量和说明
MAPPED The return value of the method is already a Map set grouped by the key value.
NONE Instead of mapping by key, combine key and value directly into a Map collection in sequence, such as Collections#zip.
ONE_TO_MANY One key corresponds to multiple data source objects, that is, one data source object only corresponds to the same key value in the returned data source object collection.
ONE_TO_ONE One key corresponds to one data source object, that is, in the returned data source object collection, multiple data source objects correspond to the same key value.

方法概要

限定符和类型	方法和说明
static MappingType	valueOf(String name) 返回带有指定名称的该类型的枚举常量。
static MappingType[]	values() 按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。

从类继承的方法 java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

从类继承的方法 java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

枚举常量详细资料

NONE

public static final MappingType NONE

Instead of mapping by key, combine key and value directly into a Map collection in sequence, such as Collections#zip.

When using this type, the return ContainerMethod.resultKey() and ContainerMethod.resultType() are ignored.

另请参阅:

2.4.0

MAPPED

public static final MappingType MAPPED

The return value of the method is already a Map set grouped by the key value. No further conversion is required according to the key value.

When using this type, the return ContainerMethod.resultKey() and ContainerMethod.resultType() are ignored.

ONE_TO_ONE

public static final MappingType ONE_TO_ONE

One key corresponds to one data source object, that is, in the returned data source object collection, multiple data source objects correspond to the same key value.

When using this type, the type which specified by ContainerMethod.resultType() must be Map or java bean.

ONE_TO_MANY

public static final MappingType ONE_TO_MANY

One key corresponds to multiple data source objects, that is, one data source object only corresponds to the same key value in the returned data source object collection.

When using this type, the type which specified by ContainerMethod.resultType() must be Map or java bean.

方法详细资料

values

public static MappingType[] values()

按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。该方法可用于迭代 常量, 如下所示:

for (MappingType c : MappingType.values())
    System.out.println(c);

返回:

按照声明该枚举类型的常量的顺序返回的包含这些常量的数组

valueOf

public static MappingType valueOf(String name)

返回带有指定名称的该类型的枚举常量。 字符串必须与用于声明该类型的枚举常量的 标识符完全匹配。(不允许有多余 的空格字符。)

参数:

name - 要返回的枚举常量的名称。

返回:

返回带有指定名称的枚举常量

抛出:

IllegalArgumentException - 如果该枚举类型没有带有指定名称的常量

NullPointerException - 如果参数为空值