Class SimpleQueryExecutor

java.lang.Object
org.exolab.castor.jdo.engine.SimpleQueryExecutor

public class SimpleQueryExecutor extends 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 Details

    • SimpleQueryExecutor

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

    • execute

      public QueryResults execute(Connection conn, QueryExpression expr, 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.