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HibernateEntityQuery and EJBQL restrictions

开发者 https://www.devze.com 2023-04-07 11:54 出处:网络
I\'ve just inherited some code that uses HibernateEntityQuery and EJBQL restrictions. There\'s an \"activity\" table/entity with various fields, and the existing EJBQL restrictions look like:

I've just inherited some code that uses HibernateEntityQuery and EJBQL restrictions.

There's an "activity" table/entity with various fields, and the existing EJBQL restrictions look like:

private final String[] SEARCHRESTRRICTION = { 
    "activity.startDate >= #{activityList.startMonthBeginDate}",
    "activity.startDate <= #{activityList.startMonthEndDate}",
    "activity.cost >= #{activityList.minCost}"
}

The table also has seven boolean fields representing days (sun/mon/tue...) which apply for a given activity. Now I'd like to query by days- the user will select days they are interested in, and the filtered results should include a开发者_JS百科ctivities which match any of the days chosen by the user.

For example, if the user checks mon/wed/fri, the query should return all activities for which mon = true OR wed = true OR fri = true.

The problem with EJBQL is that it applies the restrictions using AND, whereas I need to do something like:

select * from activity where
      (mon = true OR wed = true OR fri = true);

Is there a way to specify a restriction in the form of "return a result if ANY of the following are true"?


The solution was to move the initial filtering to the setEjbql() call, which is applied prior to the setRestrictionExpressionStrings().

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