com.holonplatform.core.query

Interface BeanProjection<T>

Type Parameters:

T - Bean result type

All Superinterfaces:

Expression, QueryProjection<T>

public interface BeanProjection<T>
extends QueryProjection<T>

A QueryProjection which uses a BeanPropertySet to define the projection selection and returns BeanPropertySet.getBeanClass() type results.

Since:

5.0.0

Nested Class Summary

Nested classes/interfaces inherited from interface com.holonplatform.core.Expression

Expression.ExpressionResolverFunction<E extends Expression,R extends Expression>, Expression.InvalidExpressionException

Method Summary

Modifier and Type	Method and Description
Class<T>	getBeanClass() Get the projection bean class.
Optional<Path[]>	getSelection() Get the optional projection selection bean Paths.
default Class<? extends T>	getType() Get projection result type
static <T> BeanProjection<T>	of(Class<T> beanClass, Path... selection) Create a BeanProjection using given bean class.

Methods inherited from interface com.holonplatform.core.Expression

validate

Method Detail

getBeanClass

Class<T> getBeanClass()

Get the projection bean class.

Returns:

Projection bean class (not null)

getSelection

Optional<Path[]> getSelection()

Get the optional projection selection bean Paths. If not provided, all valid bean property paths will be used as selection.

Returns:

Optional projection selection paths

getType

default Class<? extends T> getType()

Description copied from interface: QueryProjection

Get projection result type

Specified by:

getType in interface QueryProjection<T>

Returns:

Type class

of

static <T> BeanProjection<T> of(Class<T> beanClass,
                                Path... selection)

Create a BeanProjection using given bean class.

Type Parameters:

T - Bean and result type

Parameters:

beanClass - Bean class (not null)

selection - Optional selection paths. If not provided, all valid bean property paths will be used.

Returns:

BeanProjection using given bean class