hibernate - JPA Validation of Email String Collection -


i have list of string in bean. these strings email , validate them.

@email @elementcollection(fetch = fetchtype.lazy) @ordercolumn private list<string> emails = new arraylist<string>();

at execution, got error:

caused by: javax.validation.unexpectedtypeexception: hv000030: no validator found type: java.util.list<java.lang.string>.     @ org.hibernate.validator.internal.engine.constraintvalidation.constraintvalidatormanager.verifyresolvewasunique(constraintvalidatormanager.java:218)     @ org.hibernate.validator.internal.engine.constraintvalidation.constraintvalidatormanager.findmatchingvalidatorclass(constraintvalidatormanager.java:193)     @ org.hibernate.validator.internal.engine.constraintvalidation.constraintvalidatormanager.getinitializedvalidator(constraintvalidatormanager.java:97)     @ org.hibernate.validator.internal.engine.constraintvalidation.constrainttree.validateconstraints(constrainttree.java:125)     @ org.hibernate.validator.internal.engine.constraintvalidation.constrainttree.validatecomposingconstraints(constrainttree.java:233)     @ org.hibernate.validator.internal.engine.constraintvalidation.constrainttree.validateconstraints(constrainttree.java:102)     @ org.hibernate.validator.internal.engine.constraintvalidation.constrainttree.validateconstraints(constrainttree.java:91)     @ org.hibernate.validator.internal.metadata.core.metaconstraint.validateconstraint(metaconstraint.java:83)     @ org.hibernate.validator.internal.engine.validatorimpl.validateconstraint(validatorimpl.java:547)     ...

what correct way of doing this? or there other ways this?

implementing additional constraint validator @email validating collections suggested here 1 way of doing it. note, might have problems generating right property paths in case constraint violation. see hv-264.

if using java 8, use latest hibernate validator release (5.2.x) supports java 8 type level annotations. can write list<@email string>. in case, however, need create own @email constraint annotation , make sure @target contains elementtype.type_use. see hibernate validator docs.

the next version of bean validation (2.0) align java 8. provided constraints have elementtype.type_use , can used out of box. see bval-202.


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