org.h2.command.dml

类 MergeUsing

java.lang.Object

org.h2.command.Prepared

org.h2.command.dml.DataChangeStatement

org.h2.command.dml.MergeUsing

public final class MergeUsing
extends DataChangeStatement

This class represents the statement syntax MERGE INTO table alias USING... It does not replace the MERGE INTO... KEYS... form.

嵌套类概要

嵌套类

限定符和类型	类和说明
class	MergeUsing.When Abstract WHEN command of the MERGE statement.
class	MergeUsing.WhenMatchedThenDelete
class	MergeUsing.WhenMatchedThenUpdate
class	MergeUsing.WhenNotMatched

字段概要

从类继承的字段 org.h2.command.Prepared

create, parameters, prepareAlways, session, sqlStatement, sqlTokens

构造器概要

构造器

构造器和说明
MergeUsing(SessionLocal session, TableFilter targetTableFilter)

方法概要

限定符和类型	方法和说明
void	addWhen(MergeUsing.When w) Adds WHEN command.
void	collectDependencies(HashSet<DbObject> dependencies) Find and collect all DbObjects, this Prepared depends on.
Expression	getOnCondition()
String	getPlanSQL(int sqlFlags) Get the SQL statement with the execution plan.
TableFilter	getSourceTableFilter()
String	getStatementName() Return the name of this statement.
Table	getTable() Return the target table.
TableFilter	getTargetTableFilter()
int	getType() Get the command type as defined in CommandInterface
ArrayList<MergeUsing.When>	getWhen()
void	setOnCondition(Expression condition)
void	setSourceTableFilter(TableFilter sourceTableFilter)
void	setTargetTableFilter(TableFilter targetTableFilter)
long	update(ResultTarget deltaChangeCollector, DataChangeDeltaTable.ResultOption deltaChangeCollectionMode) Execute the statement with specified delta change collector and collection mode.

从类继承的方法 org.h2.command.dml.DataChangeStatement

isCacheable, isTransactional, prepare, queryMeta, update

从类继承的方法 org.h2.command.Prepared

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

从类继承的方法 java.lang.Object

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

构造器详细资料

MergeUsing

public MergeUsing(SessionLocal session,
                  TableFilter targetTableFilter)

方法详细资料

update

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

从类复制的说明: DataChangeStatement

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

指定者:

update 在类中 DataChangeStatement

参数:

deltaChangeCollector - target result

deltaChangeCollectionMode - collection mode

返回:

the update count

getPlanSQL

public String getPlanSQL(int sqlFlags)

从类复制的说明: Prepared

Get the SQL statement with the execution plan.

覆盖:

getPlanSQL 在类中 Prepared

参数:

sqlFlags - formatting flags

返回:

the execution plan

setSourceTableFilter

public void setSourceTableFilter(TableFilter sourceTableFilter)

getSourceTableFilter

public TableFilter getSourceTableFilter()

setOnCondition

public void setOnCondition(Expression condition)

getOnCondition

public Expression getOnCondition()

getWhen

public ArrayList<MergeUsing.When> getWhen()

addWhen

public void addWhen(MergeUsing.When w)

Adds WHEN command.

参数:

w - new WHEN command to add (update, delete or insert).

getTable

public Table getTable()

从类复制的说明: DataChangeStatement

Return the target table.

指定者:

getTable 在类中 DataChangeStatement

返回:

the target table

setTargetTableFilter

public void setTargetTableFilter(TableFilter targetTableFilter)

getTargetTableFilter

public TableFilter getTargetTableFilter()

getType

public int getType()

从类复制的说明: Prepared

Get the command type as defined in CommandInterface

指定者:

getType 在类中 Prepared

返回:

the statement type

getStatementName

public String getStatementName()

从类复制的说明: DataChangeStatement

Return the name of this statement.

指定者:

getStatementName 在类中 DataChangeStatement

返回:

the short name of this statement.

collectDependencies

public void collectDependencies(HashSet<DbObject> dependencies)

从类复制的说明: Prepared

Find and collect all DbObjects, this Prepared depends on.

覆盖:

collectDependencies 在类中 Prepared

参数:

dependencies - collection of dependencies to populate