com.metamatrix.connector.text
Class TextSynchExecution

java.lang.Object
  org.teiid.connector.basic.BasicExecution
      com.metamatrix.connector.text.TextSynchExecution

All Implemented Interfaces:

Execution, ResultSetExecution

public class TextSynchExecution
extends BasicExecution
implements ResultSetExecution

The essential part that executes the query. It keeps all the execution states.

Constructor Summary

TextSynchExecution(IQuery query, Connection txtConn, RuntimeMetadata metadata)
Constructor.

Method Summary

void	cancel() Cancels the execution abnormally.
void	close() Terminates the execution normally.
void	execute() Execute the associated command.
java.util.List	next()
protected java.lang.Object	submitRequest(java.lang.Object req) Submit request and get back the metadata necessary for accessing the text file.
protected java.lang.Object	translateRequest(ICommand request) Translate command.
protected void	translateResults(java.lang.Object response, ICommand cmd) Translate results.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TextSynchExecution

public TextSynchExecution(IQuery query,
                          Connection txtConn,
                          RuntimeMetadata metadata)

Constructor.

Parameters:

cmd -

txtConn -

Method Detail

execute

public void execute()
             throws ConnectorException

Description copied from interface: Execution

Execute the associated command. Results will be retrieved through a specific sub-interface call.

Specified by:

execute in interface Execution

Throws:

ConnectorException

next

public java.util.List next()
                    throws ConnectorException,
                           DataNotAvailableException

Specified by:

next in interface ResultSetExecution

Throws:

ConnectorException

DataNotAvailableException

close

public void close()

Description copied from interface: Execution

Terminates the execution normally.

Specified by:

close in interface Execution

cancel

public void cancel()

Description copied from interface: Execution

Cancels the execution abnormally. This will happen via a different thread from the one performing the execution, so should be expected to happen in a multi-threaded scenario.

Specified by:

cancel in interface Execution

translateRequest

protected java.lang.Object translateRequest(ICommand request)
                                     throws ConnectorException

Translate command.

Parameters:

request - ICommand as request

Returns:

Object translated request

Throws:

ConnectorException - if error occurs

submitRequest

protected java.lang.Object submitRequest(java.lang.Object req)

Submit request and get back the metadata necessary for accessing the text file.

Parameters:

req -

Returns:

Object

translateResults

protected void translateResults(java.lang.Object response,
                                ICommand cmd)
                         throws ConnectorException,
                                ConnectorException

Translate results.

Parameters:

response -

cmd -

Throws:

ConnectorException

ConnectorException