com.mysema.query.sql.dml

Class SQLMergeClause

java.lang.Object

com.mysema.query.sql.dml.AbstractSQLClause<SQLMergeClause>

com.mysema.query.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.mysema.query.sql.dml.AbstractSQLClause

configuration

Constructor Summary

Constructors

Constructor and Description
SQLMergeClause(java.sql.Connection connection, Configuration configuration, RelationalPath<?> entity)
SQLMergeClause(java.sql.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, java.lang.String flag) Add the given String literal at the given position as a query flag
SQLMergeClause	columns(Path<?>... columns)
long	execute() Execute the clause and return the amount of affected rows
<T> T	executeWithKey(java.lang.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.
java.sql.ResultSet	executeWithKeys() Execute the clause and return the generated keys as a ResultSet
<T> java.util.List<T>	executeWithKeys(java.lang.Class<T> type)
<T> java.util.List<T>	executeWithKeys(Path<T> path) Execute the clause and return the generated key with the type of the given path.
boolean	isEmpty() Returns true, if no bindings have been set, otherwise false.
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) Add an expression binding
<T> SQLMergeClause	set(Path<T> path, T value) Add a value binding
<T> SQLMergeClause	setNull(Path<T> path) Bind the given path to null
java.lang.String	toString()
SQLMergeClause	values(java.lang.Object... v)

Methods inherited from class com.mysema.query.sql.dml.AbstractSQLClause

close, close, executeBatch, setParameters

Methods inherited from class java.lang.Object

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

Constructor Detail

SQLMergeClause

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

SQLMergeClause

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

Method Detail

addFlag

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

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

Parameters:

position -

flag -

Returns:

addFlag

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

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

Parameters:

position -

flag -

Returns:

addBatch

public SQLMergeClause addBatch()

Add the current state of bindings as a batch item

Returns:

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 -

Returns:

executeWithKey

public <T> T executeWithKey(java.lang.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 -

Returns:

executeWithKeys

public <T> java.util.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 -

Returns:

executeWithKeys

public <T> java.util.List<T> executeWithKeys(java.lang.Class<T> type)

executeWithKeys

public java.sql.ResultSet executeWithKeys()

Execute the clause and return the generated keys as a ResultSet

Returns:

execute

public long execute()

Description copied from interface: DMLClause

Execute the clause and return the amount of affected rows

Specified by:

execute in interface DMLClause<SQLMergeClause>

Returns:

keys

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

Set the keys to be used in the MERGE clause

Parameters:

paths -

Returns:

select

public SQLMergeClause select(SubQueryExpression<?> subQuery)

set

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

Description copied from interface: StoreClause

Add a value binding

Specified by:

set in interface StoreClause<SQLMergeClause>

Parameters:

path - path to be updated

value - value to set

Returns:

set

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

Description copied from interface: StoreClause

Add an expression binding

Specified by:

set in interface StoreClause<SQLMergeClause>

Returns:

setNull

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

Description copied from interface: StoreClause

Bind the given path to null

Specified by:

setNull in interface StoreClause<SQLMergeClause>

Returns:

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

values

public SQLMergeClause values(java.lang.Object... v)

isEmpty

public boolean isEmpty()

Description copied from interface: StoreClause

Returns true, if no bindings have been set, otherwise false.

Specified by:

isEmpty in interface StoreClause<SQLMergeClause>

Returns: