RE: Creating Grid component at runtime
Re-reading your email Kamath I can see you have already been advised on this approach. Perhaps if the non-primitive properties used for the display class were only initialised to a value by their setters the memory issue would be not relevant, and you would already have the names of the properties for the include/exclude parameter of the grid by taking them from the query. Regards, Jim. -Original Message- From: Jim O'Callaghan [mailto:jc1000...@yahoo.co.uk] Sent: 26 September 2010 15:55 To: 'Tapestry users' Subject: RE: Creating Grid component at runtime Can you use a helper class that contains getters for all the possible fields you require, and them dynamically build a comman delimited "include" (or "exclude") string, that you pass to your grid using include/exclude via a page property? Regards, Jim. -Original Message- From: kamath_svk [mailto:kamath...@yahoo.co.in] Sent: 26 September 2010 15:40 To: users@tapestry.apache.org Subject: Re: Creating Grid component at runtime As advised in the previous reply, i can create a class which contains all the column & display only those column names which are present in the query. But i think that will be waste of memory since, I have 50 column names from col1,col2,.. col50. Consider the situation where only one column is select by query, the object created will use the storage for all 50 columns where as only 1 is actually useful. so i wanted to know, if i can use beanmodel to add the columns dynamically at runtime. -- View this message in context: http://tapestry.1045711.n5.nabble.com/Creating-Grid-component-at-runtime-tp2 847820p2854386.html Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
RE: Creating Grid component at runtime
Can you use a helper class that contains getters for all the possible fields you require, and them dynamically build a comman delimited "include" (or "exclude") string, that you pass to your grid using include/exclude via a page property? Regards, Jim. -Original Message- From: kamath_svk [mailto:kamath...@yahoo.co.in] Sent: 26 September 2010 15:40 To: users@tapestry.apache.org Subject: Re: Creating Grid component at runtime As advised in the previous reply, i can create a class which contains all the column & display only those column names which are present in the query. But i think that will be waste of memory since, I have 50 column names from col1,col2,.. col50. Consider the situation where only one column is select by query, the object created will use the storage for all 50 columns where as only 1 is actually useful. so i wanted to know, if i can use beanmodel to add the columns dynamically at runtime. -- View this message in context: http://tapestry.1045711.n5.nabble.com/Creating-Grid-component-at-runtime-tp2 847820p2854386.html Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
Re: Creating Grid component at runtime
As advised in the previous reply, i can create a class which contains all the column & display only those column names which are present in the query. But i think that will be waste of memory since, I have 50 column names from col1,col2,.. col50. Consider the situation where only one column is select by query, the object created will use the storage for all 50 columns where as only 1 is actually useful. so i wanted to know, if i can use beanmodel to add the columns dynamically at runtime. -- View this message in context: http://tapestry.1045711.n5.nabble.com/Creating-Grid-component-at-runtime-tp2847820p2854386.html Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
Re: Creating Grid component at runtime
On Tue, 21 Sep 2010 07:22:03 -0300, kamath_svk wrote: 2. I need to Use Grid component. As far as I know each row of grid is stored as objects & grid uses getters to retrieve the values. Ex. Assume a table named TableA consists of Col1, Col2, Col3, Col4, Col5, Col6, Col7, Col8, Col9 and Col10. Using query, I select say 4 columns (Col1, Col5, Col7 and Col8) Create a class that represents lines from this query. That's the easiest, cleanest solution. Using raw data from the database in the view layer is not recommended at all. -- Thiago H. de Paula Figueiredo Independent Java, Apache Tapestry 5 and Hibernate consultant, developer, and instructor Owner, Ars Machina Tecnologia da Informação Ltda. http://www.arsmachina.com.br - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
