Package org.h2.command.dml

Class Delete

java.lang.Object

org.h2.command.Prepared

org.h2.command.dml.DataChangeStatement

org.h2.command.dml.Delete

public final class Delete
extends DataChangeStatement

This class represents the statement DELETE

Field Summary

Fields inherited from class org.h2.command.Prepared

create, parameters, prepareAlways, session, sqlStatement, sqlTokens

Constructor Summary

Constructors

Constructor	Description
Delete(SessionLocal session)

Method Summary

Modifier and Type	Method	Description
protected final StringBuilder	appendFilterCondition(StringBuilder builder, int sqlFlags)
void	collectDependencies(HashSet<DbObject> dependencies)	Find and collect all DbObjects, this Prepared depends on.
final Expression	getCondition()
StringBuilder	getPlanSQL(StringBuilder builder, int sqlFlags)	Appends the SQL statement with the execution plan.
String	getStatementName()	Return the name of this statement.
final Table	getTable()	Return the target table.
final TableFilter	getTableFilter()
int	getType()	Get the command type as defined in CommandInterface
protected final Row	lockAndRecheckCondition()
protected final boolean	nextRow(long limitRows, long count)
final void	setCondition(Expression condition)
void	setFetch(Expression fetch)
final void	setTableFilter(TableFilter tableFilter)
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.dml.DataChangeStatement

isCacheable, isTransactional, lockAndRecheckCondition, prepare, queryMeta, update

Methods inherited from class org.h2.command.Prepared

checkCanceled, checkParameters, getCurrentRowNumber, getDatabase, getObjectId, getParameters, getPersistedObjectId, getPlanSQL, getSession, getSimpleSQL, getSQL, getSQLTokens, 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

Delete

public Delete(SessionLocal session)

Method Details

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

getPlanSQL

public StringBuilder getPlanSQL(StringBuilder builder,
 int sqlFlags)

Description copied from class: Prepared

Appends the SQL statement with the execution plan.

Overrides:

getPlanSQL in class Prepared

Parameters:

builder - string builder

sqlFlags - formatting flags

Returns:

the execution plan

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

getTable

public final Table getTable()

Description copied from class: DataChangeStatement

Return the target table.

Specified by:

getTable in class DataChangeStatement

Returns:

the target table

setTableFilter

public final void setTableFilter(TableFilter tableFilter)

getTableFilter

public final TableFilter getTableFilter()

setCondition

public final void setCondition(Expression condition)

getCondition

public final Expression getCondition()

setFetch

public void setFetch(Expression fetch)

nextRow

protected final boolean nextRow(long limitRows,
 long count)

appendFilterCondition

protected final StringBuilder appendFilterCondition(StringBuilder builder,
 int sqlFlags)

lockAndRecheckCondition

protected final Row lockAndRecheckCondition()