Re: Pagination by objects
You could start with the documentation...or even just your IDE code completion... :-) Look up the queryForList method signatures.. queryForList is taking start row number and end row number. For example if I have temp table with 200k rows which was build using left joins, and if I will ask return from 0, 1000 it will return 6 Objects the 6th object will not be complete because the rest of the data is in rows from 1001-1300 Example of the table ROW ID AB C D E F 11 null null 0 0 0 0 21 null null 0 0 0 1 31 null null 0 0 1 0 41 null null 0 0 1 1 51 null null 0 1 0 0 61 null null 0 1 0 1 71 null null 0 1 1 0 81 null null 1 1 0 0 92 null null 0 0 0 0 10 2 null null 0 0 0 1 11 2 null null 0 0 1 0 12 2 null null 0 0 1 1 13 2 null null 0 1 0 0 14 2 null null 0 1 0 1 15 2 null null 0 1 1 0 16 2 null null 1 1 0 0 If I will ask to get from queryForList(get, 0,10) I will get 2 Objects but second object will not be complete Clinton Begin wrote: You could start with the documentation...or even just your IDE code completion... :-) Look up the queryForList method signatures.. Clinton On Fri, Jul 24, 2009 at 4:39 PM, John Seer pulsph...@yahoo.com wrote: Hello, I am using in one of my projects ibatis and have a problem with pagination. For example I want to select 100 objects at a time and skip first 100 of them. I didn't find any good way of doing it and nothing exciting about scrolling too. Any suggestion how to achieve/solve my problem? Thanks John -- View this message in context: http://www.nabble.com/Pagination-by-objects-tp24652955p24652955.html Sent from the iBATIS - User - Java mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-java-unsubscr...@ibatis.apache.org For additional commands, e-mail: user-java-h...@ibatis.apache.org The -- View this message in context: http://www.nabble.com/Pagination-by-objects-tp24652955p24685472.html Sent from the iBATIS - User - Java mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-java-unsubscr...@ibatis.apache.org For additional commands, e-mail: user-java-h...@ibatis.apache.org
Re: Pagination by objects
I'll put this as nicely as I can: What the heck are you talking about? Larry - To unsubscribe, e-mail: user-java-unsubscr...@ibatis.apache.org For additional commands, e-mail: user-java-h...@ibatis.apache.org
Re: Pagination by objects
The heck I am talking about is that this shit doesn't work for me Larry Meadors wrote: I'll put this as nicely as I can: What the heck are you talking about? Larry - To unsubscribe, e-mail: user-java-unsubscr...@ibatis.apache.org For additional commands, e-mail: user-java-h...@ibatis.apache.org -- View this message in context: http://www.nabble.com/Pagination-by-objects-tp24652955p24685867.html Sent from the iBATIS - User - Java mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-java-unsubscr...@ibatis.apache.org For additional commands, e-mail: user-java-h...@ibatis.apache.org
Re: Pagination by objects
Ah, I know what you're talking about. There's no way to solve that, other than to load less data, or load each object up separately. If I'm not mistaken, not even a full ORM will be able to do that without first building the entire map of keyed relationships. For example, an ORM could look up all of the unique primary key values, select the first 1000 out of 200,000, then generate an IN clause and add it to the join. You could do the same with iBATIS, but you have to do it manually. Clinton On Mon, Jul 27, 2009 at 12:00 PM, John Seer pulsph...@yahoo.com wrote: You could start with the documentation...or even just your IDE code completion... :-) Look up the queryForList method signatures.. queryForList is taking start row number and end row number. For example if I have temp table with 200k rows which was build using left joins, and if I will ask return from 0, 1000 it will return 6 Objects the 6th object will not be complete because the rest of the data is in rows from 1001-1300 Example of the table ROW ID AB C D E F 11 null null 0 0 0 0 21 null null 0 0 0 1 31 null null 0 0 1 0 41 null null 0 0 1 1 51 null null 0 1 0 0 61 null null 0 1 0 1 71 null null 0 1 1 0 81 null null 1 1 0 0 92 null null 0 0 0 0 10 2 null null 0 0 0 1 11 2 null null 0 0 1 0 12 2 null null 0 0 1 1 13 2 null null 0 1 0 0 14 2 null null 0 1 0 1 15 2 null null 0 1 1 0 16 2 null null 1 1 0 0 If I will ask to get from queryForList(get, 0,10) I will get 2 Objects but second object will not be complete Clinton Begin wrote: You could start with the documentation...or even just your IDE code completion... :-) Look up the queryForList method signatures.. Clinton On Fri, Jul 24, 2009 at 4:39 PM, John Seer pulsph...@yahoo.com wrote: Hello, I am using in one of my projects ibatis and have a problem with pagination. For example I want to select 100 objects at a time and skip first 100 of them. I didn't find any good way of doing it and nothing exciting about scrolling too. Any suggestion how to achieve/solve my problem? Thanks John -- View this message in context: http://www.nabble.com/Pagination-by-objects-tp24652955p24652955.html Sent from the iBATIS - User - Java mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-java-unsubscr...@ibatis.apache.org For additional commands, e-mail: user-java-h...@ibatis.apache.org The -- View this message in context: http://www.nabble.com/Pagination-by-objects-tp24652955p24685472.html Sent from the iBATIS - User - Java mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-java-unsubscr...@ibatis.apache.org For additional commands, e-mail: user-java-h...@ibatis.apache.org
Re: Pagination by objects
Larry, He's doing a join, so each result object is made up of possibly many rows. So simply skipping arbitrary rows will create incomplete objects. Clinton On Mon, Jul 27, 2009 at 12:12 PM, Larry Meadors larry.mead...@gmail.comwrote: I'll put this as nicely as I can: What the heck are you talking about? Larry - To unsubscribe, e-mail: user-java-unsubscr...@ibatis.apache.org For additional commands, e-mail: user-java-h...@ibatis.apache.org
Re: Pagination by objects
or you could select * from (select rownum as ro, * from XXXView) where ro between 1 and 1000. If you had rownum as part of your view, I guess you could use that as the ID and Ibatis queryForList might work too. On Mon, Jul 27, 2009 at 11:30 AM, Clinton Begin clinton.be...@gmail.comwrote: Larry, He's doing a join, so each result object is made up of possibly many rows. So simply skipping arbitrary rows will create incomplete objects. Clinton On Mon, Jul 27, 2009 at 12:12 PM, Larry Meadors larry.mead...@gmail.comwrote: I'll put this as nicely as I can: What the heck are you talking about? Larry - To unsubscribe, e-mail: user-java-unsubscr...@ibatis.apache.org For additional commands, e-mail: user-java-h...@ibatis.apache.org -- Regards Sundar S.
Re: Pagination by objects
Thanks Clinton, I was thinking doing it with IN, but I thinking creating temp table with ids and doing pagination on it will work faster Clinton Begin wrote: Ah, I know what you're talking about. There's no way to solve that, other than to load less data, or load each object up separately. If I'm not mistaken, not even a full ORM will be able to do that without first building the entire map of keyed relationships. For example, an ORM could look up all of the unique primary key values, select the first 1000 out of 200,000, then generate an IN clause and add it to the join. You could do the same with iBATIS, but you have to do it manually. Clinton On Mon, Jul 27, 2009 at 12:00 PM, John Seer pulsph...@yahoo.com wrote: You could start with the documentation...or even just your IDE code completion... :-) Look up the queryForList method signatures.. queryForList is taking start row number and end row number. For example if I have temp table with 200k rows which was build using left joins, and if I will ask return from 0, 1000 it will return 6 Objects the 6th object will not be complete because the rest of the data is in rows from 1001-1300 Example of the table ROW ID AB C D E F 11 null null 0 0 0 0 21 null null 0 0 0 1 31 null null 0 0 1 0 41 null null 0 0 1 1 51 null null 0 1 0 0 61 null null 0 1 0 1 71 null null 0 1 1 0 81 null null 1 1 0 0 92 null null 0 0 0 0 10 2 null null 0 0 0 1 11 2 null null 0 0 1 0 12 2 null null 0 0 1 1 13 2 null null 0 1 0 0 14 2 null null 0 1 0 1 15 2 null null 0 1 1 0 16 2 null null 1 1 0 0 If I will ask to get from queryForList(get, 0,10) I will get 2 Objects but second object will not be complete Clinton Begin wrote: You could start with the documentation...or even just your IDE code completion... :-) Look up the queryForList method signatures.. Clinton On Fri, Jul 24, 2009 at 4:39 PM, John Seer pulsph...@yahoo.com wrote: Hello, I am using in one of my projects ibatis and have a problem with pagination. For example I want to select 100 objects at a time and skip first 100 of them. I didn't find any good way of doing it and nothing exciting about scrolling too. Any suggestion how to achieve/solve my problem? Thanks John -- View this message in context: http://www.nabble.com/Pagination-by-objects-tp24652955p24652955.html Sent from the iBATIS - User - Java mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-java-unsubscr...@ibatis.apache.org For additional commands, e-mail: user-java-h...@ibatis.apache.org The -- View this message in context: http://www.nabble.com/Pagination-by-objects-tp24652955p24685472.html Sent from the iBATIS - User - Java mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-java-unsubscr...@ibatis.apache.org For additional commands, e-mail: user-java-h...@ibatis.apache.org -- View this message in context: http://www.nabble.com/Pagination-by-objects-tp24652955p24686185.html Sent from the iBATIS - User - Java mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-java-unsubscr...@ibatis.apache.org For additional commands, e-mail: user-java-h...@ibatis.apache.org
Re: Pagination by objects
Thanks Clinton, I was thinking doing it with IN, but I thinking creating temp table with ids and doing pagination on it will work faster Clinton Begin wrote: Ah, I know what you're talking about. There's no way to solve that, other than to load less data, or load each object up separately. If I'm not mistaken, not even a full ORM will be able to do that without first building the entire map of keyed relationships. For example, an ORM could look up all of the unique primary key values, select the first 1000 out of 200,000, then generate an IN clause and add it to the join. You could do the same with iBATIS, but you have to do it manually. Clinton On Mon, Jul 27, 2009 at 12:00 PM, John Seer pulsph...@yahoo.com wrote: You could start with the documentation...or even just your IDE code completion... :-) Look up the queryForList method signatures.. queryForList is taking start row number and end row number. For example if I have temp table with 200k rows which was build using left joins, and if I will ask return from 0, 1000 it will return 6 Objects the 6th object will not be complete because the rest of the data is in rows from 1001-1300 Example of the table ROW ID AB C D E F 11 null null 0 0 0 0 21 null null 0 0 0 1 31 null null 0 0 1 0 41 null null 0 0 1 1 51 null null 0 1 0 0 61 null null 0 1 0 1 71 null null 0 1 1 0 81 null null 1 1 0 0 92 null null 0 0 0 0 10 2 null null 0 0 0 1 11 2 null null 0 0 1 0 12 2 null null 0 0 1 1 13 2 null null 0 1 0 0 14 2 null null 0 1 0 1 15 2 null null 0 1 1 0 16 2 null null 1 1 0 0 If I will ask to get from queryForList(get, 0,10) I will get 2 Objects but second object will not be complete Clinton Begin wrote: You could start with the documentation...or even just your IDE code completion... :-) Look up the queryForList method signatures.. Clinton On Fri, Jul 24, 2009 at 4:39 PM, John Seer pulsph...@yahoo.com wrote: Hello, I am using in one of my projects ibatis and have a problem with pagination. For example I want to select 100 objects at a time and skip first 100 of them. I didn't find any good way of doing it and nothing exciting about scrolling too. Any suggestion how to achieve/solve my problem? Thanks John -- View this message in context: http://www.nabble.com/Pagination-by-objects-tp24652955p24652955.html Sent from the iBATIS - User - Java mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-java-unsubscr...@ibatis.apache.org For additional commands, e-mail: user-java-h...@ibatis.apache.org The -- View this message in context: http://www.nabble.com/Pagination-by-objects-tp24652955p24685472.html Sent from the iBATIS - User - Java mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-java-unsubscr...@ibatis.apache.org For additional commands, e-mail: user-java-h...@ibatis.apache.org -- View this message in context: http://www.nabble.com/Pagination-by-objects-tp24652955p24686187.html Sent from the iBATIS - User - Java mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-java-unsubscr...@ibatis.apache.org For additional commands, e-mail: user-java-h...@ibatis.apache.org
Pagination by objects
Hello, I am using in one of my projects ibatis and have a problem with pagination. For example I want to select 100 objects at a time and skip first 100 of them. I didn't find any good way of doing it and nothing exciting about scrolling too. Any suggestion how to achieve/solve my problem? Thanks John -- View this message in context: http://www.nabble.com/Pagination-by-objects-tp24652955p24652955.html Sent from the iBATIS - User - Java mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-java-unsubscr...@ibatis.apache.org For additional commands, e-mail: user-java-h...@ibatis.apache.org
Re: Pagination by objects
You could start with the documentation...or even just your IDE code completion... :-) Look up the queryForList method signatures.. Clinton On Fri, Jul 24, 2009 at 4:39 PM, John Seer pulsph...@yahoo.com wrote: Hello, I am using in one of my projects ibatis and have a problem with pagination. For example I want to select 100 objects at a time and skip first 100 of them. I didn't find any good way of doing it and nothing exciting about scrolling too. Any suggestion how to achieve/solve my problem? Thanks John -- View this message in context: http://www.nabble.com/Pagination-by-objects-tp24652955p24652955.html Sent from the iBATIS - User - Java mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-java-unsubscr...@ibatis.apache.org For additional commands, e-mail: user-java-h...@ibatis.apache.org
