Package org.h2.command.dml
Class NoOperation
- java.lang.Object
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- org.h2.command.Prepared
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- org.h2.command.dml.NoOperation
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public class NoOperation extends Prepared
Represents an empty statement or a statement that has no effect.
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Field Summary
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Fields inherited from class org.h2.command.Prepared
create, parameters, prepareAlways, session, sqlStatement, sqlTokens
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Constructor Summary
Constructors Constructor Description NoOperation(SessionLocal session)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
getType()
Get the command type as defined in CommandInterfaceboolean
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.long
update()
Execute the statement.-
Methods inherited from class org.h2.command.Prepared
checkCanceled, checkParameters, collectDependencies, getCteCleanups, getCurrentRowNumber, getObjectId, getParameters, getPersistedObjectId, getPlanSQL, getSession, getSimpleSQL, getSQL, getSQLTokens, isCacheable, isQuery, prepare, query, setCommand, setCteCleanups, setCurrentRowNumber, setParameterList, setPersistedObjectId, setPrepareAlways, setRow, setSession, setSQL, toString
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Constructor Detail
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NoOperation
public NoOperation(SessionLocal session)
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Method Detail
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update
public long update()
Description copied from class:Prepared
Execute the statement.
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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 classPrepared
- Returns:
- true if it is
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needRecompile
public boolean needRecompile()
Description copied from class:Prepared
Check if the statement needs to be re-compiled.- Overrides:
needRecompile
in classPrepared
- Returns:
- true if it must
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isReadOnly
public boolean isReadOnly()
Description copied from class:Prepared
Check if this command is read only.- Overrides:
isReadOnly
in classPrepared
- Returns:
- true if it is
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queryMeta
public ResultInterface queryMeta()
Description copied from class:Prepared
Get an empty result set containing the meta data.
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