[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-408) Implementation of E-QBE (Enhanced-QueryByExample) (CONTRIBUTION)

[tareq alhashash (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-408?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=33513#action_33513 ] 

tareq alhashash commented on HHH-408:
-------------------------------------

great feature thank you,

i`v already tested it and its great, but i guess there is a problem in composite keys entities.

looking forward for its release.

> Implementation of E-QBE (Enhanced-QueryByExample) (CONTRIBUTION)
> ----------------------------------------------------------------
>
>                 Key: HHH-408
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-408
>             Project: Hibernate Core
>          Issue Type: New Feature
>          Components: core
>            Reporter: Marc Piparo
>            Assignee: Gavin King
>         Attachments: hibernate-eqbe.zip, hibernate-eqbe.zip, overview-summary.html
>
>
> Adds E-QBE (Enhanced-QueryByExample) functionality that dynamically builds criteria objects based on an example object graph, by traversing the entire object graph, building query criteria for the object's properties, as well as, properties of associated objects.
> Also adds the ability to apply an Evaluation group of "Evaluators" to properties using object dot notation to provide "where" restrictions on property values.
> Example usage:
> Given a typical Person and Address class relationship...
> >> Person person = new Person();
> >> person.setName("Marc");
> >> Address address = new Address();
> >> address.setCity("Orlando%");
> >> person.setAddress(address);
> >>
> >> Evaluation eval = new Evaluation();
> >> eval.addEvaluator("address.city", Evaluator.LIKE);
> >> // query for persons with name="Marc" that live in city starting
> >> // with "Orlando".
> >> List results = session.createEQBECriteria(people, eval).list()
> also....to apply "OR" condition on property value:
> >> a.setCity("Orlando||New York");
> package: org.hibernate.eqbe

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