Uses of Interface
com.holonplatform.core.query.QueryProjection

Packages that use QueryProjection

Package	Description
com.holonplatform.core.beans
com.holonplatform.core.datastore.relational
com.holonplatform.core.property
com.holonplatform.core.query

Uses of QueryProjection in com.holonplatform.core.beans

Subinterfaces of QueryProjection in com.holonplatform.core.beans

Modifier and Type	Interface and Description
interface	BeanProperty<T> Represents a Java Bean property as a PathProperty, providing additional configuration informations and methods.
static interface	BeanProperty.Builder<T> BeanProperty builder.

Uses of QueryProjection in com.holonplatform.core.datastore.relational

Methods in com.holonplatform.core.datastore.relational that return QueryProjection

Modifier and Type	Method and Description
QueryProjection<T>	SubQuery.getSelection() Gets the projection to use as the subquery result

Methods in com.holonplatform.core.datastore.relational with parameters of type QueryProjection

Modifier and Type	Method and Description
static <T> SubQuery<T>	SubQuery.create(Datastore datastore, QueryProjection<T> selection) Build a sub query with given property as selection.
SubQuery<T>	SubQuery.select(QueryProjection<T> projection) Specify the projection to use as the subquery result.

Uses of QueryProjection in com.holonplatform.core.property

Subinterfaces of QueryProjection in com.holonplatform.core.property

Modifier and Type	Interface and Description
interface	PathProperty<T> A Property bound to a Path, using Path.getName() as property name.
static interface	PathProperty.PathPropertyBuilder<T> PathProperty builder.

Uses of QueryProjection in com.holonplatform.core.query

Subinterfaces of QueryProjection in com.holonplatform.core.query

Modifier and Type	Interface and Description
interface	BeanProjection<T> A QueryProjection which uses a BeanPropertySet to define the projection selection and returns BeanPropertySet.getBeanClass() type results.
interface	CountAllProjection A QueryProjection to represent the count of all the results of a query.
interface	FunctionExpression<T> A QueryExpression wich represents the result of a QueryFunction a can be used as QueryProjection.
static interface	FunctionExpression.FunctionExpressionProperty<T> A FunctionExpression implemented as a Property.
static interface	FunctionExpression.PathFunctionExpression<P,T> A FunctionExpression which acts on a Path.
static interface	FunctionExpression.PathFunctionExpressionProperty<P,T> A FunctionExpression.PathFunctionExpression implemented as a VirtualProperty.
interface	PropertySetProjection A QueryProjection which uses a PropertySet to define the projection selection and returns PropertyBox type results.

Methods in com.holonplatform.core.query with parameters of type QueryProjection

Modifier and Type	Method and Description
default <R> Optional<R>	QueryResults.findOne(QueryProjection<R> projection) Execute query and get an expected unique result using projection to map result to required type.
default <R> List<R>	QueryResults.list(QueryProjection<R> projection) Convenience method to obtain query results QueryResults.stream(QueryProjection) as a List
<R> Stream<R>	QueryResults.stream(QueryProjection<R> projection) Execute query and get a Stream of query results using given projection to map results to required type.