org.hibernate.validator.constraints

public @Interface UniqueElements

Annotations

@Documented
@Constraint
validatedBy:
@Target:METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER, TYPE_USE
@Retention:RUNTIME
@Repeatable:List

Static Imports

java.lang.annotation.ElementType.ANNOTATION_TYPE, .ElementType.CONSTRUCTOR, .ElementType.FIELD, .ElementType.METHOD, .ElementType.PARAMETER, .ElementType.TYPE, .ElementType.TYPE_USE, .RetentionPolicy.RUNTIME

Validates that every object in the provided Collection is unique, i.e. that we can't find 2 equal elements in the collection.

For instance, this can be useful with JAX-RS, which always deserializes collections to a list. Thus, duplicates would implicitly and silently be removed when converting it to a set. This constraint allows you to check for duplicates in the list and to raise an error instead.

Author: Tadhg Pearson
Since: 6.0.5

Nested and Inner Type Summary

Modifier and Type	Class and Description
public static @interface	UniqueElements.List Defines several `@UniqueElements` annotations on the same element.

Method Summary

Modifier and Type	Method and Description
public Class<?>[]	groups()
public String	message()
public Class<? extends Payload>[]	payload()

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

Method Detail

groups	back to summary
public Class<?>[] groups()

message	back to summary
public String message()

payload	back to summary
public Class<? extends Payload>[] payload()

org.hibernate.validator.constraints back to summary

public @Interface UniqueElements.List

Annotations

extends Annotation

@Target:TYPE
@Retention:RUNTIME
@Documented

Defines several @UniqueElements annotations on the same element.

Method Summary

Modifier and Type	Method and Description
public UniqueElements[]	value()

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

Method Detail

value	back to summary
public UniqueElements[] value()