Package org.h2.command.dml

Class NoOperation

java.lang.Object

org.h2.command.Prepared

org.h2.command.dml.NoOperation

public class NoOperation
extends Prepared

Represents an empty statement or a statement that has no effect.

Field Summary

Fields inherited from class org.h2.command.Prepared

create, parameters, prepareAlways, session, sqlStatement, sqlTokens

Constructor Summary

Constructors

Constructor	Description
NoOperation(SessionLocal session)

Method Summary

Modifier and Type	Method	Description
int	getType()	Get the command type as defined in CommandInterface
boolean	isReadOnly()	Check if this command is read only.
boolean	isTransactional()	Check if this command is transactional.
boolean	needRecompile()	Check if the statement needs to be re-compiled.
ResultInterface	queryMeta()	Get an empty result set containing the metadata.
long	update()	Execute the statement.

Methods inherited from class org.h2.command.Prepared

checkCanceled, checkParameters, collectDependencies, getCurrentRowNumber, getDatabase, getObjectId, getParameters, getPersistedObjectId, getPlanSQL, getPlanSQL, getSession, getSimpleSQL, getSQL, getSQLTokens, invalidateCachedResult, isCacheable, isQuery, isRetryable, isWithParamValues, prepare, query, setCommand, setCurrentRowNumber, setParameterList, setPersistedObjectId, setPrepareAlways, setRow, setSession, setSQL, setWithParamValues, toString

Methods inherited from class java.lang.Object

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

Constructor Details

NoOperation

public NoOperation(SessionLocal session)

Method Details

update

public long update()

Description copied from class: Prepared

Execute the statement.

Overrides:

update in class Prepared

Returns:

the update count

isTransactional

public boolean isTransactional()

Description copied from class: Prepared

Check if this command is transactional. If it is not, then it forces the current transaction to commit.

Specified by:

isTransactional in class Prepared

Returns:

true if it is

needRecompile

public boolean needRecompile()

Description copied from class: Prepared

Check if the statement needs to be re-compiled.

Overrides:

needRecompile in class Prepared

Returns:

true if it must

isReadOnly

public boolean isReadOnly()

Description copied from class: Prepared

Check if this command is read only.

Overrides:

isReadOnly in class Prepared

Returns:

true if it is

queryMeta

public ResultInterface queryMeta()

Description copied from class: Prepared

Get an empty result set containing the metadata.

Specified by:

queryMeta in class Prepared

Returns:

the result set

getType

public int getType()

Description copied from class: Prepared

Get the command type as defined in CommandInterface

Specified by:

getType in class Prepared

Returns:

the statement type