[jboss-user] [JBoss Seam] - Re: EntityQuery bug

[pete.muir@jboss.org]

For the second issue (JBSEAM-1916) you should do something like this

@Name("mdrCases")
  | public class MdrCasesQuery extends EntityQuery {
  | 
  |    private boolean allCases;
  | 
  |    public void executeSearch() {
  |       String ejbql = "from MdrCase c".concat(allCases? "": " where (c.endingTreatmentDate is null)");
  |       super.setEjbql(ejbql);
  |    }
  | }

<h:commandButton action="#{mdrCases.executeSearch}" value="Search" />

Why? Well parsing the ejbql is a reasonably expensive operation so to save some cycles you have to explicitly tell the Query that the ejbql has changed.  This reserves the refresh method for updating the result based on changed restrictions/changed data.

I'm going to document this.

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