javax.validation.valueextraction

注釈型 ExtractedValue

@Retention(value=RUNTIME)
 @Target(value=TYPE_USE)
 @Documented
public @interface ExtractedValue

Marks the type parameter of a generic container type to which a ValueExtractor is tied or specifies the type of the wrapped element(s) of non-generic container types.

Must be given exactly once for a value extractor type.

導入されたバージョン:

2.0

作成者:

Gunnar Morling, Guillaume Smet

関連項目:

ValueExtractor

任意要素のサマリー

任意要素

修飾子とタイプ	任意要素と説明
Class<?>	type The type of the value extracted by the ValueExtractor.

要素の詳細

type

public abstract Class<?> type

The type of the value extracted by the ValueExtractor. If not set, the type will be automatically inferred from the type argument of the parameterized type.

Used to define value extractors for non-generic wrapper types e.g. OptionalInt.

May not be used when ExtractedValue is defined on the type parameter of a generic container type. A ValueExtractorDefinitionException will be thrown in this case.

戻り値:

the type of the value extracted by the value extractor

デフォルト:

void.class