Package org.h2.command.dml

Class DataChangeStatement

java.lang.Object

org.h2.command.Prepared

org.h2.command.dml.DataChangeStatement

Direct Known Subclasses:

CommandWithValues, Delete, MergeUsing, Update

public abstract class DataChangeStatement
extends Prepared

Data change statement.

Field Summary

Fields inherited from class org.h2.command.Prepared

create, parameters, prepareAlways, session, sqlStatement, sqlTokens

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	DataChangeStatement(SessionLocal session)	Creates new instance of DataChangeStatement.

Method Summary

Modifier and Type	Method	Description
abstract String	getStatementName()	Return the name of this statement.
abstract Table	getTable()	Return the target table.
boolean	isCacheable()
final boolean	isTransactional()	Check if this command is transactional.
protected final Row	lockAndRecheckCondition(TableFilter targetTableFilter, Expression condition)
final void	prepare()	Prepare this statement.
final ResultInterface	queryMeta()	Get an empty result set containing the metadata.
final long	update()	Execute the statement.
abstract long	update(ResultTarget deltaChangeCollector, DataChangeDeltaTable.ResultOption deltaChangeCollectionMode)	Execute the statement with specified delta change collector and collection mode.

Methods inherited from class org.h2.command.Prepared

checkCanceled, checkParameters, collectDependencies, getCurrentRowNumber, getDatabase, getObjectId, getParameters, getPersistedObjectId, getPlanSQL, getPlanSQL, getSession, getSimpleSQL, getSQL, getSQLTokens, getType, invalidateCachedResult, isQuery, isReadOnly, isRetryable, isWithParamValues, needRecompile, 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

DataChangeStatement

protected DataChangeStatement(SessionLocal session)

Creates new instance of DataChangeStatement.

Parameters:

session - the session

Method Details

prepare

public final void prepare()

Description copied from class: Prepared

Prepare this statement.

Overrides:

prepare in class Prepared

getStatementName

public abstract String getStatementName()

Return the name of this statement.

Returns:

the short name of this statement.

getTable

public abstract Table getTable()

Return the target table.

Returns:

the target table

isTransactional

public final 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

queryMeta

public final 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

isCacheable

public boolean isCacheable()

Overrides:

isCacheable in class Prepared

update

public final long update()

Description copied from class: Prepared

Execute the statement.

Overrides:

update in class Prepared

Returns:

the update count

update

public abstract long update(ResultTarget deltaChangeCollector,
 DataChangeDeltaTable.ResultOption deltaChangeCollectionMode)

Execute the statement with specified delta change collector and collection mode.

Parameters:

deltaChangeCollector - target result

deltaChangeCollectionMode - collection mode

Returns:

the update count

lockAndRecheckCondition

protected final Row lockAndRecheckCondition(TableFilter targetTableFilter,
 Expression condition)