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From "Pinaki Poddar (JIRA)" <>
Subject [jira] Resolved: (OPENJPA-1276) Support CQL for Criteria Query
Date Thu, 12 Nov 2009 04:45:39 GMT


Pinaki Poddar resolved OPENJPA-1276.

    Resolution: Fixed

> Support CQL for Criteria Query
> ------------------------------
>                 Key: OPENJPA-1276
>                 URL:
>             Project: OpenJPA
>          Issue Type: New Feature
>          Components: jpa, query, tooling
>    Affects Versions: 2.0.0-M3, 2.0.0-M4, 2.0.0
>            Reporter: Pinaki Poddar
>            Assignee: Pinaki Poddar
>             Fix For: 2.0.0-M4, 2.0.0
>   Original Estimate: 336h
>  Remaining Estimate: 336h
> Support a mechanism to translate a Criteria Query instance into a String.
> The string syntax should be *almost* JPQL but not exactly. Because some Criteria Query
expressions do not have a direct JPQL representation.
> I will refer this almost JPQL-like syntax as Criteria Query Language or CQL -- which
will provide ample scope of confusion being homophonic with SQL.
> From a technical perspectives, conversion to a string format should address the following
> 1. the string should look more like JPQL than a mere translation of internal expressions
(say BETWEEN in two EQUAL nodes ANDed together internally)
> 2. the criteria query may be incomplete. This will be useful for the IDE tools to display
the string as an user constructs the query.

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