javax.validation.valueextraction

public @Interface ExtractedValue

Annotations

@Retention:RUNTIME
@Target:TYPE_USE
@Documented

Imports

java.lang.annotation.Documented, .ElementType, .Retention, .RetentionPolicy, .Target, java.util.OptionalInt

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.

Authors: Gunnar Morling, Guillaume Smet
Since: 2.0
See Also: ValueExtractor

Method Summary

Modifier and Type	Method and Description
public Class<?>	Returns: the type of the value extracted by the value extractor type() The type of the value extracted by the `ValueExtractor`.

Inherited from java.lang.annotation.Annotation:: annotationType equals hashCode toString

Method Detail

type back to summary

type	back to summary
public 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. Returns:Class<?> the type of the value extracted by the value extractor

public 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.

Returns:Class<?>: the type of the value extracted by the value extractor