HibernateEntityQuery and EJBQL restrictions
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()
.
精彩评论