org.h2.command.dml

Class Merge

java.lang.Object

org.h2.command.Prepared

org.h2.command.dml.Merge

public class Merge
extends Prepared

This class represents the statement MERGE

Field Summary

Fields inherited from class org.h2.command.Prepared

create, parameters, prepareAlways, session, sqlStatement

Constructor Summary

Constructors

Constructor and Description
Merge(Session session)

Method Summary

Modifier and Type	Method and Description
void	addRow(Expression[] expr) Add a row to this merge statement.
java.lang.String	getPlanSQL() Get the SQL statement with the execution plan.
Table	getTargetTable()
TableFilter	getTargetTableFilter()
int	getType() Get the command type as defined in CommandInterface
boolean	isCacheable()
boolean	isTransactional() Check if this command is transactional.
protected void	merge(Row row) Merge the given row.
void	prepare() Prepare this statement.
ResultInterface	queryMeta() Get an empty result set containing the meta data.
void	setColumns(Column[] columns)
void	setCommand(Command command) Set the command.
void	setKeys(Column[] keys)
void	setQuery(Query query)
void	setTargetTable(Table targetTable)
void	setTargetTableFilter(TableFilter targetTableFilter)
int	update() Execute the statement.

Methods inherited from class org.h2.command.Prepared

checkCanceled, checkParameters, getCteCleanups, getCurrentObjectId, getCurrentRowNumber, getObjectId, getParameters, getSession, getSQL, getSQL, getSQL, isQuery, isReadOnly, needRecompile, query, setCteCleanups, setCurrentRowNumber, setObjectId, setParameterList, setPrepareAlways, setRow, setSession, setSQL, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

Merge

public Merge(Session session)

Method Detail

setCommand

public void setCommand(Command command)

Description copied from class: Prepared

Set the command.

Overrides:

setCommand in class Prepared

Parameters:

command - the new command

setTargetTable

public void setTargetTable(Table targetTable)

setColumns

public void setColumns(Column[] columns)

setKeys

public void setKeys(Column[] keys)

setQuery

public void setQuery(Query query)

addRow

public void addRow(Expression[] expr)

Add a row to this merge statement.

Parameters:

expr - the list of values

update

public int update()

Description copied from class: Prepared

Execute the statement.

Overrides:

update in class Prepared

Returns:

the update count

merge

protected void merge(Row row)

Merge the given row.

Parameters:

row - the row

getPlanSQL

public java.lang.String getPlanSQL()

Description copied from class: Prepared

Get the SQL statement with the execution plan.

Overrides:

getPlanSQL in class Prepared

Returns:

the execution plan

prepare

public void prepare()

Description copied from class: Prepared

Prepare this statement.

Overrides:

prepare in class Prepared

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 class Prepared

Returns:

true if it is

queryMeta

public ResultInterface queryMeta()

Description copied from class: Prepared

Get an empty result set containing the meta data.

Specified by:

queryMeta in class Prepared

Returns:

the result set

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

isCacheable

public boolean isCacheable()

Overrides:

isCacheable in class Prepared

getTargetTable

public Table getTargetTable()

getTargetTableFilter

public TableFilter getTargetTableFilter()

setTargetTableFilter

public void setTargetTableFilter(TableFilter targetTableFilter)