Re: How to strip off selected columns from a criteria object
Hi Thomas, Thanks a lot, just tried this, worked like a charm. BTW, Criteria object returned by criteria.clone() gets affected if the original criteria object is modified. Is this a bug? For examples, if I have an existing criteria, then I do: Criteria criteriaClone = criteria.clone(); criteria.getSelectColumns().clean(); both criteria and criteriaClone have empty selectcolumn list. Thanks, David On Mon, May 10, 2010 at 1:02 PM, Thomas Vandahl t...@apache.org wrote: Hi Dave, wzhao6...@gmail.com schrieb: Thanks for your reply. But what I need to deal with is that: I have a criteria object, with joins, and where clauses and a list of columns to select, and I need to remove all the selected columns in the criteria, both selected column, and as columns, so I can use OMPeer class to select a list of OM objects; What happens if you do criteria.getSelectColumns().clear() or criteria.getAsColumns().clear(), respectively? Would that help? (This is what is basically done in criteria.clear(), among other things) Bye, Thomas. - To unsubscribe, e-mail: torque-user-unsubscr...@db.apache.org For additional commands, e-mail: torque-user-h...@db.apache.org
Re: How to strip off selected columns from a criteria object
Hi Thomas, Thanks for your reply. But what I need to deal with is that: I have a criteria object, with joins, and where clauses and a list of columns to select, and I need to remove all the selected columns in the criteria, both selected column, and as columns, so I can use OMPeer class to select a list of OM objects; Thanks again! David On Thu, May 6, 2010 at 8:39 AM, Thomas Vandahl t...@apache.org wrote: On 05.05.10 23:28, wzhao6...@gmail.com wrote: Hi there, I need to strip off all the selected columns (getSelectedColumns(), and getAsColumns()) from a criteria object, is there a way for me to do that? For examples: Criteria criteria = new Criteria(); criteria.addJoin(PermissionPeer.PERMISSION_ID,RolePermissionPeer.PERMISSION_ID); criteria.addJoin(RolePermissionPeer.ROLE_ID, RolePeer.ROLE_ID); criteria.add(PermissionPeer.PERMISSION_ID, 1, Criteria.EQUAL) criteria.addSelectColumn(PermissionPeer.PERMISSION_ID); criteria.addAsColumn(permission, PermissionPeer.PERMISSION_ID); criteria.setDistinct(); where, I'd like to remove the selected columns: PermissionPeer.PERMISSION_ID,, but criteria.remove(PermissionPeer.PERMISSION_ID); doesn't do it for me. Several databases require all columns used in the where-clause to be in the list of selected columns, too. Furthermore, the Peer classes expect all columns needed for the construction of the OM object to be present in the result set. If you use BasePeer.doSelect, however, you can build any criteria you want. You will get back Village records, though. Bye, Thomas. - To unsubscribe, e-mail: torque-user-unsubscr...@db.apache.org For additional commands, e-mail: torque-user-h...@db.apache.org
Re: How to strip off selected columns from a criteria object
Hi Dave, wzhao6...@gmail.com schrieb: Thanks for your reply. But what I need to deal with is that: I have a criteria object, with joins, and where clauses and a list of columns to select, and I need to remove all the selected columns in the criteria, both selected column, and as columns, so I can use OMPeer class to select a list of OM objects; What happens if you do criteria.getSelectColumns().clear() or criteria.getAsColumns().clear(), respectively? Would that help? (This is what is basically done in criteria.clear(), among other things) Bye, Thomas. - To unsubscribe, e-mail: torque-user-unsubscr...@db.apache.org For additional commands, e-mail: torque-user-h...@db.apache.org
Re: How to strip off selected columns from a criteria object
U can use following command.. Whatever column's value u want to get u have to mention that's column name . crit.addGroupByColumn(TurbineUserPeer.USER_LANG); 2010/5/6 wzhao6...@gmail.com wzhao6...@gmail.com Hi there, I need to strip off all the selected columns (getSelectedColumns(), and getAsColumns()) from a criteria object, is there a way for me to do that? For examples: Criteria criteria = new Criteria(); criteria.addJoin(PermissionPeer.PERMISSION_ID,RolePermissionPeer.PERMISSION_ID); criteria.addJoin(RolePermissionPeer.ROLE_ID, RolePeer.ROLE_ID); criteria.add(PermissionPeer.PERMISSION_ID, 1, Criteria.EQUAL) criteria.addSelectColumn(PermissionPeer.PERMISSION_ID); criteria.addAsColumn(permission, PermissionPeer.PERMISSION_ID); criteria.setDistinct(); where, I'd like to remove the selected columns: PermissionPeer.PERMISSION_ID,, but criteria.remove(PermissionPeer.PERMISSION_ID); doesn't do it for me. I understand that criteria is essentially a HashTable, but only WHERE clause (through criteria.add(...) ) has a key in criteria, I can't find join and column key information from the criteria.keySet()? BTW, how do I re-construct a criteria by putting all the pieces in criteria together? I don't want to use criteria.clone() in this case. Thanks in advance! David
Re: How to strip off selected columns from a criteria object
On 05.05.10 23:28, wzhao6...@gmail.com wrote: Hi there, I need to strip off all the selected columns (getSelectedColumns(), and getAsColumns()) from a criteria object, is there a way for me to do that? For examples: Criteria criteria = new Criteria(); criteria.addJoin(PermissionPeer.PERMISSION_ID,RolePermissionPeer.PERMISSION_ID); criteria.addJoin(RolePermissionPeer.ROLE_ID, RolePeer.ROLE_ID); criteria.add(PermissionPeer.PERMISSION_ID, 1, Criteria.EQUAL) criteria.addSelectColumn(PermissionPeer.PERMISSION_ID); criteria.addAsColumn(permission, PermissionPeer.PERMISSION_ID); criteria.setDistinct(); where, I'd like to remove the selected columns: PermissionPeer.PERMISSION_ID,, but criteria.remove(PermissionPeer.PERMISSION_ID); doesn't do it for me. Several databases require all columns used in the where-clause to be in the list of selected columns, too. Furthermore, the Peer classes expect all columns needed for the construction of the OM object to be present in the result set. If you use BasePeer.doSelect, however, you can build any criteria you want. You will get back Village records, though. Bye, Thomas. - To unsubscribe, e-mail: torque-user-unsubscr...@db.apache.org For additional commands, e-mail: torque-user-h...@db.apache.org
