Return to MultiBinder.m CVS log

Up to [NeXTSTEP 3.3 examples] / Examples / DatabaseKit / Evaluator

Annotation of Examples/DatabaseKit/Evaluator/MultiBinder.m, revision 1.1

1.1     ! root        1: /*
        !             2:  * MultiBinder.m
        !             3:  * A Binder for fetching multiple results sets from a stored procedure.
        !             4:  * You may freely copy, distribute, and reuse the code in this example.
        !             5:  * NeXT disclaims any warranty of any kind, expressed or  implied, as to its
        !             6:  * fitness for any particular use.
        !             7:  * Written by Jack Greenfield
        !             8:  */
        !             9: 
        !            10: #import "MultiBinder.h"
        !            11: 
        !            12: @implementation MultiBinder
        !            13: 
        !            14: - initFromPropertyLists:(List *)propLists
        !            15: {
        !            16:     if ((self = [super init]) != nil)
        !            17:     {
        !            18:        currentResultSet = 0;
        !            19:        if (propLists) propListList = [propLists copyFromZone:[self zone]];
        !            20:     }
        !            21: 
        !            22:     return self;
        !            23: }
        !            24: 
        !            25: - (List *)getCurrentProperties:(List *)aList
        !            26: {
        !            27:     return [super getProperties:aList];
        !            28: }
        !            29: 
        !            30: - (unsigned int)currentResultSet
        !            31: {
        !            32:     return currentResultSet ? currentResultSet - 1 : [propListList count];
        !            33: }
        !            34: 
        !            35: - (List *)getProperties:(List *)aList
        !            36: {
        !            37:     if (currentResultSet)
        !            38:        if ([delegate respondsTo:@selector(binderWillChangeResultSet:)])
        !            39:            [delegate binderWillChangeResultSet:self];
        !            40: 
        !            41:     [aList empty];
        !            42:     [aList appendList:[propListList objectAt:currentResultSet]];
        !            43:     [self setProperties:aList];
        !            44:     currentResultSet++;
        !            45:     if ([propListList count] && currentResultSet > [propListList count])
        !            46:        currentResultSet = [propListList count];
        !            47:     else
        !            48:        if ([delegate respondsTo:@selector(binderDidChangeResultSet:)])
        !            49:            [delegate binderDidChangeResultSet:self];
        !            50: 
        !            51:     return aList;
        !            52: }
        !            53: 
        !            54: - free
        !            55: {
        !            56:     [[propListList freeObjects] free];
        !            57:     return [super free];
        !            58: }
        !            59: 
        !            60: @end
        !            61: 
        !            62: @implementation DBBinder (MultiBinderMethods)
        !            63: 
        !            64: - (List *)getCurrentProperties:(List *)aList
        !            65: {
        !            66:     return([self getProperties:aList]);
        !            67: }
        !            68: 
        !            69: @end
        !            70: 

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.