+1 >-----Original Message----- >From: Jakob Braeuchi [mailto:[EMAIL PROTECTED] >Sent: 27 March 2003 21:25 >To: OJB Users List >Subject: [Vote] Can QueryCustomizer be used to suppress foreign key >queries > > >hi all, > >does everyone agree ? > >jakob > >Lance Eason wrote: > >>I'd think an empty collection so the client doesn't have to >make any special concessions for null. >> >>-----Original Message----- >>From: Jakob Braeuchi [mailto:[EMAIL PROTECTED] >>Sent: Thursday, March 27, 2003 1:12 PM >>To: OJB Users List >>Subject: Re: Can QueryCustomizer be used to suppress foreign >key queries >> >> >>hi lance, >> >>you'e the query cannot be suppressed. >>btw. what should be returned for a suppressed query, null or an empty >>collection ? >> >>jakob >> >>Lance Eason wrote: >> >> >> >>>I have a table that may have child records in two other >tables. This easy enough to map, I just create the >collection-descriptors mapping to the two child tables and OJB >issues queries to populate these collections. The wrinkle is >that these relationships are only applicable to a small subset >of the rows in the table and I can tell from the other data in >the row whether they are applicable or not. There's no >functional issue here, but I'd rather not be doing unnecessary >database queries on all the rows I can clearly tell there is >no need to pursue these two relationships. Is there any way >to enable or suppress relationships on a row by row basis? >>> >>>QueryCustomizer looks promising as it takes the instance for >the row and gets to decide the specific query that's executed >to populate the collection for that instance. I don't see a >way to entirely suppress a query though. Is there one? >>> >>> >>> >>> >>> >> >> >>--------------------------------------------------------------------- >>To unsubscribe, e-mail: [EMAIL PROTECTED] >>For additional commands, e-mail: [EMAIL PROTECTED] >> >> >>--------------------------------------------------------------------- >>To unsubscribe, e-mail: [EMAIL PROTECTED] >>For additional commands, e-mail: [EMAIL PROTECTED] >> >> >> >> > > >--------------------------------------------------------------------- >To unsubscribe, e-mail: [EMAIL PROTECTED] >For additional commands, e-mail: [EMAIL PROTECTED] >
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