com.querydsl.sql.dml

Class SQLMergeClause

java.lang.Object

com.querydsl.sql.dml.AbstractSQLClause<SQLMergeClause>

com.querydsl.sql.dml.SQLMergeClause

All Implemented Interfaces:

DMLClause<SQLMergeClause>, StoreClause<SQLMergeClause>

public class SQLMergeClause
extends AbstractSQLClause<SQLMergeClause>
implements StoreClause<SQLMergeClause>

SQLMergeClause defines an MERGE INTO clause

Author:

tiwe

Field Summary

Fields inherited from class com.querydsl.sql.dml.AbstractSQLClause

configuration, context, listeners, useLiterals

Constructor Summary

Constructors

Constructor and Description
SQLMergeClause(Connection connection, Configuration configuration, RelationalPath<?> entity)
SQLMergeClause(Connection connection, SQLTemplates templates, RelationalPath<?> entity)

Method Summary

Methods

Modifier and Type	Method and Description
SQLMergeClause	addBatch() Add the current state of bindings as a batch item
SQLMergeClause	addFlag(QueryFlag.Position position, Expression<?> flag) Add the given Expression at the given position as a query flag
SQLMergeClause	addFlag(QueryFlag.Position position, String flag) Add the given String literal at the given position as a query flag
SQLMergeClause	columns(Path<?>... columns)
long	execute()
<T> T	executeWithKey(Class<T> type) Execute the clause and return the generated key cast to the given type.
<T> T	executeWithKey(Path<T> path) Execute the clause and return the generated key with the type of the given path.
ResultSet	executeWithKeys() Execute the clause and return the generated keys as a ResultSet
<T> List<T>	executeWithKeys(Class<T> type)
<T> List<T>	executeWithKeys(Path<T> path) Execute the clause and return the generated key with the type of the given path.
List<SQLBindings>	getSQL() Get the SQL string and bindings
boolean	isEmpty()
SQLMergeClause	keys(Path<?>... paths) Set the keys to be used in the MERGE clause
SQLMergeClause	select(SubQueryExpression<?> subQuery)
<T> SQLMergeClause	set(Path<T> path, Expression<? extends T> expression)
<T> SQLMergeClause	set(Path<T> path, T value)
<T> SQLMergeClause	setNull(Path<T> path)
String	toString()
SQLMergeClause	values(Object... v)

Methods inherited from class com.querydsl.sql.dml.AbstractSQLClause

addListener, cleanupMDC, close, close, close, createBindings, createSerializer, endContext, executeBatch, logQuery, onException, reset, setParameters, setUseLiterals, startContext

Methods inherited from class java.lang.Object

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

Constructor Detail

SQLMergeClause

public SQLMergeClause(Connection connection,
              SQLTemplates templates,
              RelationalPath<?> entity)

SQLMergeClause

public SQLMergeClause(Connection connection,
              Configuration configuration,
              RelationalPath<?> entity)

Method Detail

addFlag

public SQLMergeClause addFlag(QueryFlag.Position position,
                     String flag)

Add the given String literal at the given position as a query flag

Parameters:

position - position

flag - query flag

Returns:

the current object

addFlag

public SQLMergeClause addFlag(QueryFlag.Position position,
                     Expression<?> flag)

Add the given Expression at the given position as a query flag

Parameters:

position - position

flag - query flag

Returns:

the current object

addBatch

public SQLMergeClause addBatch()

Add the current state of bindings as a batch item

Returns:

the current object

columns

public SQLMergeClause columns(Path<?>... columns)

executeWithKey

@Nullable
public <T> T executeWithKey(Path<T> path)

Execute the clause and return the generated key with the type of the given path. If no rows were created, null is returned, otherwise the key of the first row is returned.

Type Parameters:

T -

Parameters:

path - path for key

Returns:

generated key

executeWithKey

public <T> T executeWithKey(Class<T> type)

Execute the clause and return the generated key cast to the given type. If no rows were created, null is returned, otherwise the key of the first row is returned.

Type Parameters:

T -

Parameters:

type - type of key

Returns:

generated key

executeWithKeys

public <T> List<T> executeWithKeys(Path<T> path)

Execute the clause and return the generated key with the type of the given path. If no rows were created, or the referenced column is not a generated key, null is returned. Otherwise, the key of the first row is returned.

Type Parameters:

T -

Parameters:

path - path for key

Returns:

generated keys

executeWithKeys

public <T> List<T> executeWithKeys(Class<T> type)

executeWithKeys

public ResultSet executeWithKeys()

Execute the clause and return the generated keys as a ResultSet

Returns:

result set with generated keys

execute

public long execute()

Specified by:

execute in interface DMLClause<SQLMergeClause>

getSQL

public List<SQLBindings> getSQL()

Description copied from class: AbstractSQLClause

Get the SQL string and bindings

Specified by:

getSQL in class AbstractSQLClause<SQLMergeClause>

Returns:

SQL and bindings

keys

public SQLMergeClause keys(Path<?>... paths)

Set the keys to be used in the MERGE clause

Parameters:

paths - keys

Returns:

the current object

select

public SQLMergeClause select(SubQueryExpression<?> subQuery)

set

public <T> SQLMergeClause set(Path<T> path,
                     @Nullable
                     T value)

Specified by:

set in interface StoreClause<SQLMergeClause>

set

public <T> SQLMergeClause set(Path<T> path,
                     Expression<? extends T> expression)

Specified by:

set in interface StoreClause<SQLMergeClause>

setNull

public <T> SQLMergeClause setNull(Path<T> path)

Specified by:

setNull in interface StoreClause<SQLMergeClause>

toString

public String toString()

Overrides:

toString in class Object

values

public SQLMergeClause values(Object... v)

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface StoreClause<SQLMergeClause>