Class Update

java.lang.Object

org.h2.command.Prepared

org.h2.command.dml.DataChangeStatement

org.h2.command.dml.FilteredDataChangeStatement

org.h2.command.dml.Update

public final class Update
extends FilteredDataChangeStatement

This class represents the statement UPDATE

Field Summary

Fields

Modifier and Type	Field	Description
private TableFilter	fromTableFilter
private Insert	onDuplicateKeyInsert
private SetClauseList	setClauseList

Fields inherited from class FilteredDataChangeStatement

condition, fetchExpr, targetTableFilter

Fields inherited from class Prepared

create, parameters, prepareAlways, session, sqlStatement, sqlTokens

Constructor Summary

Constructors

Constructor	Description
Update(SessionLocal session)

Method Summary

Modifier and Type	Method	Description
void	collectDependencies(HashSet<DbObject> dependencies)	Find and collect all DbObjects, this Prepared depends on.
(package private) static void	doUpdate(Prepared prepared, SessionLocal session, Table table, LocalResult rows)
Insert	getOnDuplicateKeyInsert()
String	getPlanSQL(int sqlFlags)	Get the SQL statement with the execution plan.
String	getStatementName()	Return the name of this statement.
int	getType()	Get the command type as defined in CommandInterface
void	prepare()	Prepare this statement.
void	setFromTableFilter(TableFilter tableFilter)
(package private) void	setOnDuplicateKeyInsert(Insert onDuplicateKeyInsert)
void	setSetClauseList(SetClauseList setClauseList)
long	update(ResultTarget deltaChangeCollector, DataChangeDeltaTable.ResultOption deltaChangeCollectionMode)	Execute the statement with specified delta change collector and collection mode.

Methods inherited from class FilteredDataChangeStatement

appendFilterCondition, getCondition, getTable, getTableFilter, nextRow, setCondition, setFetch, setTableFilter

Methods inherited from class DataChangeStatement

isCacheable, isTransactional, queryMeta, update

Methods inherited from class Prepared

checkCanceled, checkParameters, getCteCleanups, getCurrentRowNumber, getObjectId, getParameters, getPersistedObjectId, getSession, getSimpleSQL, getSQL, getSQLTokens, isQuery, isReadOnly, needRecompile, query, setCommand, setCteCleanups, setCurrentRowNumber, setParameterList, setPersistedObjectId, setPrepareAlways, setRow, setSession, setSQL, toString

Methods inherited from class Object

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

Field Details

setClauseList

private SetClauseList setClauseList

onDuplicateKeyInsert

private Insert onDuplicateKeyInsert

fromTableFilter

private TableFilter fromTableFilter

Constructor Details

Update

public Update(SessionLocal session)

Method Details

setSetClauseList

public void setSetClauseList(SetClauseList setClauseList)

setFromTableFilter

public void setFromTableFilter(TableFilter tableFilter)

update

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

Description copied from class: DataChangeStatement

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

Specified by:

update in class DataChangeStatement

Parameters:

deltaChangeCollector - target result

deltaChangeCollectionMode - collection mode

Returns:

the update count

doUpdate

static void doUpdate(Prepared prepared,
 SessionLocal session,
 Table table,
 LocalResult rows)

getPlanSQL

public String getPlanSQL(int sqlFlags)

Description copied from class: Prepared

Get the SQL statement with the execution plan.

Overrides:

getPlanSQL in class Prepared

Parameters:

sqlFlags - formatting flags

Returns:

the execution plan

prepare

public void prepare()

Description copied from class: Prepared

Prepare this statement.

Overrides:

prepare in class Prepared

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

getStatementName

public String getStatementName()

Description copied from class: DataChangeStatement

Return the name of this statement.

Specified by:

getStatementName in class DataChangeStatement

Returns:

the short name of this statement.

collectDependencies

public void collectDependencies(HashSet<DbObject> dependencies)

Description copied from class: Prepared

Find and collect all DbObjects, this Prepared depends on.

Overrides:

collectDependencies in class Prepared

Parameters:

dependencies - collection of dependencies to populate

getOnDuplicateKeyInsert

public Insert getOnDuplicateKeyInsert()

setOnDuplicateKeyInsert

void setOnDuplicateKeyInsert(Insert onDuplicateKeyInsert)