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hernansaab edited this page Aug 28, 2012 · 28 revisions

Welcome to the absrd wiki! This tool takes advantage of parallel gcd and allows for for concurrent running sql queries. It also offers a lean object oriented wrapper to sql.

    1. Sample Show Off Code







Here we are creating 5 different query blocks. 1 of them query db called default and 4 of them query db called web1

Code as follows:

AbsrdQueryBlock block1 = ^(){ DbConnector *default_conn = [DbManager getConnector:@"default"];; NSMutableArray *res = [default_conn query:@"select * from courses limit 1"]; return res; };
    AbsrdQueryBlock block2 = ^(){
        DbConnector *web1_conn    = [DbManager getConnector:@"web1"];;
        NSMutableArray *res = [web1_conn query:@"select * from t_contents limit 1"];
        return res;
    };
    AbsrdQueryBlock block3 = ^(){
        DbConnector *web1_conn    = [DbManager getConnector:@"web1"];;
        NSMutableArray *res = [web1_conn query:@"select * from t_resources limit 1"];
        return res;
    AbsrdQueryBlock block4 = ^(){
        DbConnector *web1_conn    = [DbManager getConnector:@"web1"];;
        NSMutableArray *res = [web1_conn query:@"select * from t_activities limit 1"];
        return res;
   AbsrdQueryBlock block5 = ^(){
        DbConnector *web1_conn    = [DbManager getConnector:@"web1"];;
        NSMutableArray *res = [web1_conn query:@"select * from t_content_thumbnails limit 1"];
        return res;
    };

// Now we add these query blocks to the query blaster

    QueryBlockBuster *bb = [[QueryBlockBuster alloc] init];
    [bb addQueryBlock:block1];
    [bb addQueryBlock:block2];
    [bb addQueryBlock:block3];
    [bb addQueryBlock:block4];
    [bb addQueryBlock:block5];

// And now we execute all queries in 5 concurrent queries saving you a fracion of a time compared to // querying them sequentially

    NSMutableArray *result = [bb multiQueryParallel];







              

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