org.h2.command.dml
Class NoOperation

java.lang.Object
  extended by org.h2.command.Prepared
      extended by 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
 
Constructor Summary
NoOperation(Session session)
           
 
Method Summary
 int getType()
          Get the command type as defined in CommandInterface
 boolean isQuery()
          Check if this object is a query.
 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 meta data.
 int update()
          Execute the statement.
 
Methods inherited from class org.h2.command.Prepared
checkCanceled, checkParameters, getCurrentObjectId, getCurrentRowNumber, getObjectId, getParameters, getPlanSQL, getSQL, getSQL, getSQL, isCacheable, prepare, query, setCommand, setCurrentRowNumber, setObjectId, setParameterList, setPrepareAlways, setRow, setSession, setSQL, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

NoOperation

public NoOperation(Session session)
Method Detail

update

public int update()
Description copied from class: Prepared
Execute the statement.

Overrides:
update in class Prepared
Returns:
the update count

isQuery

public boolean isQuery()
Description copied from class: Prepared
Check if this object is a query.

Overrides:
isQuery in class Prepared
Returns:
true if it is

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 meta data.

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