com.mysema.query.types
Class QTuple

java.lang.Object
  com.mysema.query.types.ExpressionBase<Tuple>
      com.mysema.query.types.QTuple

All Implemented Interfaces:

Expression<Tuple>, FactoryExpression<Tuple>, Serializable

public class QTuple
extends ExpressionBase<Tuple>
implements FactoryExpression<Tuple>

QTuple represents a projection of type Tuple

Usage example:

 List<Tuple> result = query.from(employee).list(new QTuple(employee.firstName, employee.lastName));
 for (Tuple row : result) {
     System.out.println("firstName " + row.get(employee.firstName));
     System.out.println("lastName " + row.get(employee.lastName)); 
 }
  
 

Author:

tiwe

See Also:

Serialized Form

Constructor Summary

QTuple(Expression<?>... args)
Create a new QTuple instance

QTuple(Expression<?>[]... args)
Create a new QTuple instance

Method Summary

<R,C> R	accept(Visitor<R,C> v, C context) Accept the visitor with the given context
boolean	equals(Object obj)
List<Expression<?>>	getArgs() Get the invocation arguments
Tuple	newInstance(Object... a) Create a projection with the given arguments

Methods inherited from class com.mysema.query.types.ExpressionBase

getType, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.mysema.query.types.Expression

getType

Constructor Detail

QTuple

public QTuple(Expression<?>... args)

Create a new QTuple instance

Parameters:

args -

QTuple

public QTuple(Expression<?>[]... args)

Create a new QTuple instance

Parameters:

args -

Method Detail

newInstance

public Tuple newInstance(Object... a)

Description copied from interface: FactoryExpression

Create a projection with the given arguments

Specified by:

newInstance in interface FactoryExpression<Tuple>

Returns:

accept

public <R,C> R accept(Visitor<R,C> v,
                      C context)

Description copied from interface: Expression

Accept the visitor with the given context

Specified by:

accept in interface Expression<Tuple>

Type Parameters:

R - return type

C - context type

Parameters:

v - visitor

context - context of visit

Returns:

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

getArgs

public List<Expression<?>> getArgs()

Description copied from interface: FactoryExpression

Get the invocation arguments

Specified by:

getArgs in interface FactoryExpression<Tuple>

Returns: