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- /* QBE.h:
- * You may freely copy, distribute, and reuse the code in this example.
- * NeXT disclaims any warranty of any kind, expressed or implied, as to its
- * fitness for any particular use.
- *
- * Written by Craig Federighi
- *
- *
- * Example of a Query By Example object: Connects to an EOController for an
- * easy contruction of qualifiers from data entered into fields of an
- * existing user interface.
- */
-
- #import <appkit/appkit.h>
- #import <eointerface/eointerface.h>
- #import <apps/InterfaceBuilder.h>
-
- @interface QBE:Object
- {
- EOController *controller;
- EODatabaseDataSource *realsource;
-
- NSMutableArray *removedAssociations;
- EOController *nextController;
- id controllersDelegate;
- NSMutableArray *wereUneditableAssoc;
- NSMutableArray *wereEditableAssoc;
-
- EOQualifier *originalQualifier;
- }
-
- - enterQueryMode:sender;
- // switches controller from displaying database
- // data to displaying a blank row in which query info can be entered.
- // Sending this message when already in Query mode will add a new row to
- // the controller to allow entry of another disjoined qualifier.
-
- - toggleQueryFetch:sender;
- // if not in query mode, enters query mode. If in query mode, does
- // applyQualifier (and exits query mode)
-
- - applyQualifier:sender;
- // constructs a qualifier with ANDing within columns and ORing rows
- // Sets the qualifier in the datasource and issues a fetch on the
- // controller.
-
- - applyDisjointQualifier:sender;
- // like applyQualifier, but ORs within columns
-
- - exitQueryMode:sender;
- // reverts to original qualifier and fetches.
-
- - addQuery:sender;
- // add a line to the query controller and select it
-
- @end
-
-