org.h2.command
Interface CommandInterface

All Known Implementing Classes:

Command, CommandContainer, CommandList, CommandRemote

public interface CommandInterface

Represents a SQL statement.

Method Summary

void	cancel() Cancel the statement if it is still processing.
void	close() Close the statement.
ResultInterface	executeQuery(int maxRows, boolean scrollable) Execute the query.
int	executeUpdate() Execute the statement
ResultInterface	getMetaData() Get an empty result set containing the meta data of the result.
ObjectArray<? extends ParameterInterface>	getParameters() Get the parameters (if any).
boolean	isQuery() Check if this is a query.

Method Detail

isQuery

boolean isQuery()

Check if this is a query.

Returns:

true if it is a query

getParameters

ObjectArray<? extends ParameterInterface> getParameters()

Get the parameters (if any).

Returns:

the parameters

executeQuery

ResultInterface executeQuery(int maxRows,
                             boolean scrollable)
                             throws java.sql.SQLException

Execute the query.

Parameters:

maxRows - the maximum number of rows returned

scrollable - if the result set must be scrollable

Returns:

the result

Throws:

java.sql.SQLException

executeUpdate

int executeUpdate()
                  throws java.sql.SQLException

Execute the statement

Returns:

the update count

Throws:

java.sql.SQLException

close

void close()

Close the statement.

cancel

void cancel()

Cancel the statement if it is still processing.

getMetaData

ResultInterface getMetaData()
                            throws java.sql.SQLException

Get an empty result set containing the meta data of the result.

Returns:

the empty result

Throws:

java.sql.SQLException