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

Packages that use QueryProjection

Package	Description
com.holonplatform.async.datastore.operation
com.holonplatform.core.beans
com.holonplatform.core.datastore.relational
com.holonplatform.core.property
com.holonplatform.core.query
com.holonplatform.core.query.lock

Uses of QueryProjection in com.holonplatform.async.datastore.operation

Methods in com.holonplatform.async.datastore.operation with parameters of type QueryProjection

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

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 read/write methods.
static interface	BeanProperty.Builder<T> BeanProperty builder.
interface	BooleanBeanProperty A Boolean type BeanProperty, implementing BooleanProperty.
interface	NumericBeanProperty<N extends Number> A numeric type BeanProperty, implementing NumericProperty.
interface	StringBeanProperty A String type BeanProperty, implementing StringProperty.
interface	TemporalBeanProperty<T> A temporal type BeanProperty, implementing TemporalProperty.

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) Deprecated. Datastore parameter is no longer required, use SubQuery.create(QueryProjection) instead
static <T> SubQuery<T>	SubQuery.create(QueryProjection<T> selection) Build a sub query with given projection 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	BooleanProperty A boolean type PathProperty.
static interface	BooleanProperty.BooleanPropertyBuilder BooleanProperty builder.
interface	CollectionPathProperty<E,C extends Collection<E>> A CollectionProperty type PathProperty.
interface	ListPathProperty<T> A CollectionPathProperty which uses a List as concrete collection type.
static interface	ListPathProperty.ListPathPropertyBuilder<T> ListPathProperty builder.
interface	NumericProperty<N extends Number> A numeric type PathProperty.
static interface	NumericProperty.NumericPropertyBuilder<N extends Number> NumericProperty builder.
interface	PathProperty<T> A Property bound to a Path, using Path.getName() as property name.
static interface	PathProperty.PathPropertyBuilder<T> PathProperty builder.
interface	PropertyBoxProperty A PropertyBox type PathProperty.
static interface	PropertyBoxProperty.PropertyBoxPropertyBuilder PropertyBoxProperty builder.
interface	SetPathProperty<T> A CollectionPathProperty which uses a Set as concrete collection type.
static interface	SetPathProperty.SetPathPropertyBuilder<T> SetPathProperty builder.
interface	StringProperty A String type PathProperty.
static interface	StringProperty.StringPropertyBuilder StringProperty builder.
interface	TemporalProperty<T> A temporal type PathProperty.
static interface	TemporalProperty.TemporalPropertyBuilder<T> TemporalProperty 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	ConstantExpression<T> Constant value expression which can also act as QueryProjection.
interface	CountAllProjection A QueryProjection to represent the count of all the results of a query.
interface	PathExpression<T> A QueryExpression wich represents a Path.
interface	PropertySetProjection A QueryProjection which uses a PropertySet to define the projection selection and returns PropertyBox type results.
interface	QueryFunction<T,A> Represents a function expression.
static interface	QueryFunction.Avg A function which represents the average value of a query result.
static interface	QueryFunction.Count A function which represents the count of a query result values.
static interface	QueryFunction.Max<T> A function which represents the largest value of a query result.
static interface	QueryFunction.Min<T> A function which represents the smallest value of a query result.
static interface	QueryFunction.NoArgQueryFunction<T> A QueryFunction which do not support any argument.
static interface	QueryFunction.PropertyQueryFunction<T,A> A QueryFunction which is also a Property, allowing the function to be used within a property set query projection and the function value to be collected in a PropertyBox.
static interface	QueryFunction.Sum<T extends Number> A function which represents the sum of a numeric query result values.
interface	SelectAllProjection A QueryProjection to obtain all the values af a persistent data entity instance.
interface	StringFunction Represents a QueryFunction on a String data type.
static interface	StringFunction.Lower Function to convert a string to lowercase.
static interface	StringFunction.Upper Function to convert a string to uppercase.
interface	TemporalFunction<T> Represents a temporal-related QueryFunction.
static interface	TemporalFunction.CurrentDate A function to obtain the current date as a Date.
static interface	TemporalFunction.CurrentLocalDate A function to obtain the current date as a LocalDate.
static interface	TemporalFunction.CurrentLocalDateTime A function to obtain the current date and time as a LocalDateTime.
static interface	TemporalFunction.CurrentTimestamp A function to obtain the current timestamp as a Date.
static interface	TemporalFunction.Day A function to extract the day part of a temporal data type.
static interface	TemporalFunction.Hour A function to extract the hour part of a temporal data type.
static interface	TemporalFunction.Month A function to extract the month part of a temporal data type.
static interface	TemporalFunction.Year A function to extract the year part of a temporal data type.

Methods in com.holonplatform.core.query that return QueryProjection

Modifier and Type	Method and Description
static <T> QueryProjection<T>	QueryProjection.bean(Class<? extends T> beanClass, Path<?>... selection) Create a QueryProjection using given bean class.
static <T> QueryProjection<T>	QueryProjection.constant(T value) Create a QueryProjection for a constant value.
static QueryProjection<Long>	QueryProjection.countAll() Create a query projection to count all the query results.
QueryProjection<R>	QueryOperation.getProjection() Get the query projection.
static <T> QueryProjection<T>	QueryProjection.path(Path<T> path) Create a QueryProjection for a Path expression.
static <P extends Property> QueryProjection<PropertyBox>	QueryProjection.propertySet(Iterable<P> properties) Create a PropertyBox type query projection using given properties as property set.
static QueryProjection<PropertyBox>	QueryProjection.propertySet(Property<?>... properties) Create a PropertyBox type query projection using given properties as property set.

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

Modifier and Type	Method and Description
static <C extends QueryConfiguration,R> QueryOperation<C,R>	QueryOperation.create(C configuration, QueryProjection<R> projection) Create a new QueryOperation.
<R> OR	QueryProjectionOperations.findOne(QueryProjection<R> projection) Execute the query and get an expected unique result using given projection to map the result to the required type.
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.
<R> LR	QueryProjectionOperations.list(QueryProjection<R> projection) Convenience method to obtain the query results QueryProjectionOperations.stream(QueryProjection) as a List
default <R> List<R>	QueryResults.list(QueryProjection<R> projection) Convenience method to obtain the query results QueryResults.stream(QueryProjection) as a List
<R> SR	QueryProjectionOperations.stream(QueryProjection<R> projection) Execute the query and get a Stream of query results using given projection to map results to the required type.
<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.

Uses of QueryProjection in com.holonplatform.core.query.lock

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

Modifier and Type	Method and Description
<R> Stream<R>	LockQuery.stream(QueryProjection<R> projection) Execute query and get a Stream of query results using given projection to map results to required type.