com.holonplatform.core

Interface TypedExpression<T>

Type Parameters:

T - Expression type

All Superinterfaces:

Expression

All Known Subinterfaces:

Aliasable.AliasablePath<T,C>, BeanDataTarget<T>, BeanProjection<T>, BeanProperty<T>, BeanProperty.Builder<T>, BooleanBeanProperty, BooleanProperty, BooleanProperty.BooleanPropertyBuilder, CloneableProperty<T,P,B>, CloneableProperty.CloneablePathProperty<T,P>, CollectionConstantExpression<T>, CollectionExpression<E,C>, CollectionPathProperty<E,C>, CollectionProperty<E,C>, CollectionProperty.ListProperty<T>, CollectionProperty.SetProperty<T>, ConstantConverterExpression<T,E>, ConstantExpression<T>, ConverterExpression<T>, CountAllProjection, DataTarget<T>, Join<T>, ListPathProperty<T>, ListPathProperty.ListPathPropertyBuilder<T>, ListVirtualProperty<T>, ListVirtualProperty.ListVirtualPropertyBuilder<T>, NullExpression<T>, NumericBeanProperty<N>, NumericProperty<N>, NumericProperty.NumericPropertyBuilder<N>, NumericQueryExpression<N>, Path<T>, Path.FinalPath<T>, Path.FinalPath.FinalPathBuilder<T>, Path.PathBuilder<T>, PathExpression<T>, PathProperty<T>, PathProperty.PathPropertyBuilder<T>, Property<T>, PropertyBoxProperty, PropertyBoxProperty.PropertyBoxPropertyBuilder, PropertySetProjection, QueryExpression<T>, QueryFunction<T,A>, QueryFunction.Avg, QueryFunction.Count, QueryFunction.Max<T>, QueryFunction.Min<T>, QueryFunction.NoArgQueryFunction<T>, QueryFunction.PropertyQueryFunction<T,A>, QueryFunction.Sum<T>, QueryOperation<C,R>, QueryProjection<T>, RelationalTarget<T>, SelectAllProjection, SetPathProperty<T>, SetPathProperty.SetPathPropertyBuilder<T>, SetVirtualProperty<T>, SetVirtualProperty.SetVirtualPropertyBuilder<T>, StringBeanProperty, StringFunction, StringFunction.Lower, StringFunction.Upper, StringProperty, StringProperty.StringPropertyBuilder, StringQueryExpression, SubQuery<T>, TemporalBeanProperty<T>, TemporalFunction<T>, TemporalFunction.CurrentDate, TemporalFunction.CurrentLocalDate, TemporalFunction.CurrentLocalDateTime, TemporalFunction.CurrentTimestamp, TemporalFunction.Day, TemporalFunction.Hour, TemporalFunction.Month, TemporalFunction.Year, TemporalProperty<T>, TemporalProperty.TemporalPropertyBuilder<T>, TemporalQueryExpression<T>, VirtualProperty<T>, VirtualProperty.Builder<T,P,B>, VirtualProperty.VirtualPropertyBuilder<T>

All Known Implementing Classes:

AbstractConverterExpression, DefaultCollectionConstantExpression, DefaultConstantConverterExpression, DefaultFinalPath, DefaultNullExpression, DefaultPath

public interface TypedExpression<T>
extends Expression

An Expression with a declared type.

Since:

5.1.0

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
default Optional<TemporalType>	getTemporalType() If the expression type represents a temporal type, get the actual TemporalType of the type.
Class<? extends T>	getType() Get the expression type.
default Optional<CollectionExpression<?,?>>	isCollectionExpression() Checks if this expression is a CollectionExpression.
default Optional<ConverterExpression<T>>	isConverterExpression() Checks if this expression is a ConverterExpression.

Methods inherited from interface com.holonplatform.core.Expression

validate

Method Detail

getType

Class<? extends T> getType()

Get the expression type.

Returns:

Expression type

getTemporalType

default Optional<TemporalType> getTemporalType()

If the expression type represents a temporal type, get the actual TemporalType of the type.

Returns:

Optional temporal type

isConverterExpression

default Optional<ConverterExpression<T>> isConverterExpression()

Checks if this expression is a ConverterExpression.

Returns:

If this expression is a ConverterExpression returns the expression itself as a ConverterExpression, or an empty Optional otherwise

isCollectionExpression

default Optional<CollectionExpression<?,?>> isCollectionExpression()

Checks if this expression is a CollectionExpression.

Returns:

If this expression is a CollectionExpression returns the expression itself as a CollectionExpression, or an empty Optional otherwise