org.teiid.translator.olap

Class OlapQueryExecution

java.lang.Object

org.teiid.translator.olap.OlapQueryExecution

All Implemented Interfaces:

Execution, ProcedureExecution, ResultSetExecution

public class OlapQueryExecution
extends Object
implements ProcedureExecution

Executes the given MDX and packs the results into an array

Field Summary

Fields

Modifier and Type	Field and Description
protected Command	command
protected org.olap4j.OlapConnection	connection
protected ExecutionContext	context
protected OlapExecutionFactory	executionFactory

Constructor Summary

Constructors

Constructor and Description
OlapQueryExecution(List<Argument> arguments, Command command, org.olap4j.OlapConnection connection, ExecutionContext context, OlapExecutionFactory executionFactory, String mdxQuery, boolean returnsArray)

Method Summary

Modifier and Type	Method and Description
void	cancel() Cancels the execution abnormally.
void	close() Terminates the execution normally.
void	execute() Execute the associated command.
List<?>	getOutputParameterValues() Get the output parameter values.
List<?>	next() Retrieves the next row of the resultset.

Methods inherited from class java.lang.Object

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

Field Detail

command

protected Command command

connection

protected org.olap4j.OlapConnection connection

context

protected ExecutionContext context

executionFactory

protected OlapExecutionFactory executionFactory

Constructor Detail

OlapQueryExecution

public OlapQueryExecution(List<Argument> arguments,
                          Command command,
                          org.olap4j.OlapConnection connection,
                          ExecutionContext context,
                          OlapExecutionFactory executionFactory,
                          String mdxQuery,
                          boolean returnsArray)

Method Detail

execute

public void execute()
             throws TranslatorException

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:

TranslatorException

cancel

public void cancel()
            throws TranslatorException

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

Throws:

TranslatorException

close

public void close()

Description copied from interface: Execution

Terminates the execution normally.

Specified by:

close in interface Execution

next

public List<?> next()
             throws TranslatorException

Description copied from interface: ResultSetExecution

Retrieves the next row of the resultset.

Specified by:

next in interface ResultSetExecution

Returns:

the next row or null indicating that there are no more results

Throws:

TranslatorException

getOutputParameterValues

public List<?> getOutputParameterValues()
                                 throws TranslatorException

Description copied from interface: ProcedureExecution

Get the output parameter values. Results should place the return parameter first if it is present, then the IN/OUT and OUT parameters should follow in the order they appeared in the command.

Specified by:

getOutputParameterValues in interface ProcedureExecution

Throws:

TranslatorException - If an error occurs while retrieving the output value