AsyncDistributedSqlEngine: ConnectionArgs

The AsyncDistributedSqlEngine method executeMany() takes arguments for substitution into query strings. These arguments are specified in the following ConnectionArgs structure:

 
    struct ConnectionArgs
    {
        McoSql::Value **args;
        size_t nargs;
        ConnectionArgs(McoSql::Allocator *allocator, size_t size) : nargs(size) 
        {
            args = (McoSql::Value **)allocator->allocate(sizeof(McoSql::Value *) * nargs);
        }
        DESTROY(ConnectionArgs)
    };
 

Parameter Descriptions

args	An array or values
nargs	The number ofarguments

Example

Typically a C++ application will instantiate ConnectionArgs in the main program as illustrated below:

     
    const size_t nWorkers = 4;
     
    int main(int argc, char** argv)
    {
        try {

            McoSql::AsyncDistributedSqlEngine engine(nWorkers);            
            ...
        }
    }