SimpleQueryExecutor (Castor JavaDoc)

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

Nested Class Summary

Nested Classes
Modifier and Type Class Description

class SimpleQueryExecutor.SimpleQueryResults

Constructor Summary

Constructors
Constructor Description

SimpleQueryExecutor(Database database)
Creates an instance to execute a simple query.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`QueryResults`	`execute(java.sql.Connection conn, QueryExpression expr, java.lang.Object[] bindValues)`	Executes a simple query and returns the results.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 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.

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