Class SimpleQueryExecutor


  • public class SimpleQueryExecutor
    extends java.lang.Object
    A class to execute simple SQL queries generated from OQL. If the query only returns dependant values, or the results of SQL Functions or operations, then we don't need to use the whole persistence framework, and this class will execute the query, and return results.
    Version:
    $Revision: 7130 $ $Date: 2006-03-14 06:22:05 -0700 (Tue, 14 Mar 2006) $
    Author:
    Nissim Karpenstein
    • Constructor Detail

      • SimpleQueryExecutor

        public SimpleQueryExecutor​(Database database)
        Creates an instance to execute a simple query.
        Parameters:
        database - the Database Implementation, used to get the connection
    • Method Detail

      • execute

        public QueryResults execute​(java.sql.Connection conn,
                                    QueryExpression expr,
                                    java.lang.Object[] bindValues)
                             throws QueryException
        Executes a simple query and returns the results. The query must not return any complex objects, because this method can only return simple java objects.
        Parameters:
        expr - the Query Expression to be executed.
        bindValues - the values of the parameters
        Returns:
        the results of the query.
        Throws:
        QueryException - if anything goes wrong.