Package org.hibernate.query.criteria

Interface JpaCriteriaQuery<T>

All Superinterfaces:
AbstractQuery<T>, CommonAbstractCriteria, CriteriaQuery<T>, JpaCriteriaBase, JpaCriteriaNode, JpaCteContainer, JpaQueryableCriteria<T>, JpaSelectCriteria<T>, Serializable
All Known Implementing Classes:
CriteriaDefinition, SqmSelectStatement
public interface JpaCriteriaQuery<T> extends CriteriaQuery<T>, JpaQueryableCriteria<T>, JpaSelectCriteria<T>
Extension of the JPA CriteriaQuery
Author:
Steve Ebersole

  • Method Details

    • createCountQuery

      JpaCriteriaQuery<Long> createCountQuery()
      A query that returns the number of results of this query.
      Since:
      6.4
      See Also:

    • getOffset

      JpaExpression<Number> getOffset()

    • offset

      JpaCriteriaQuery<T> offset(JpaExpression<? extends Number> offset)

    • offset

      JpaCriteriaQuery<T> offset(Number offset)

    • getFetch

      JpaExpression<Number> getFetch()

    • fetch

      JpaCriteriaQuery<T> fetch(JpaExpression<? extends Number> fetch)

    • fetch

      JpaCriteriaQuery<T> fetch(JpaExpression<? extends Number> fetch, FetchClauseType fetchClauseType)

    • fetch

      JpaCriteriaQuery<T> fetch(Number fetch)

    • fetch

      JpaCriteriaQuery<T> fetch(Number fetch, FetchClauseType fetchClauseType)

    • getFetchClauseType

      FetchClauseType getFetchClauseType()

    • getRootList

      List<Root<?>> getRootList()
      Return the roots as a list.

    • getOrderList

      default List<Order> getOrderList()
      Description copied from interface: CriteriaQuery
      Return the ordering expressions in order of precedence. Returns empty list if no ordering expressions have been specified. Modifications to the list do not affect the query.
      Specified by:
      getOrderList in interface CriteriaQuery<T>
      Returns:
      the list of ordering expressions

    • getParameters

      Set<ParameterExpression<?>> getParameters()
      Return the parameters of the query. Returns empty set if there are no parameters. Modifications to the set do not affect the query.
      Specified by:
      getParameters in interface CriteriaQuery<T>
      Returns:
      the query parameters

    • from

      <X> JpaRoot<X> from(Class<X> entityClass)
      Description copied from interface: AbstractQuery
      Create and add a query root corresponding to the given entity, forming a cartesian product with any existing roots.
      Specified by:
      from in interface AbstractQuery<T>
      Specified by:
      from in interface JpaSelectCriteria<T>
      Parameters:
      entityClass - the entity class
      Returns:
      query root corresponding to the given entity

    • from

      <X> JpaRoot<X> from(EntityType<X> entity)
      Description copied from interface: AbstractQuery
      Create and add a query root corresponding to the given entity, forming a cartesian product with any existing roots.
      Specified by:
      from in interface AbstractQuery<T>
      Specified by:
      from in interface JpaSelectCriteria<T>
      Parameters:
      entity - metamodel entity representing the entity of type X
      Returns:
      query root corresponding to the given entity

    • distinct

      JpaCriteriaQuery<T> distinct(boolean distinct)
      Description copied from interface: CriteriaQuery
      Specify whether duplicate query results will be eliminated. A true value will cause duplicates to be eliminated. A false value will cause duplicates to be retained. If distinct has not been specified, duplicate results must be retained. This method only overrides the return type of the corresponding AbstractQuery method.
      Specified by:
      distinct in interface AbstractQuery<T>
      Specified by:
      distinct in interface CriteriaQuery<T>
      Specified by:
      distinct in interface JpaSelectCriteria<T>
      Parameters:
      distinct - boolean value specifying whether duplicate results must be eliminated from the query result or whether they must be retained
      Returns:
      the modified query.

    • select

      JpaCriteriaQuery<T> select(Selection<? extends T> selection)
      Description copied from interface: CriteriaQuery
      Specify the item that is to be returned in the query result. Replaces the previously specified selection(s), if any.

      Note: Applications using the string-based API may need to specify the type of the select item when it results from a get or join operation and the query result type is specified. 

           For example:

     CriteriaQuery<String> q = cb.createQuery(String.class);
     Root<Order> order = q.from(Order.class);
     q.select(order.get("shippingAddress").<String>get("state"));
 
     CriteriaQuery<Product> q2 = cb.createQuery(Product.class);
     q2.select(q2.from(Order.class)
                 .join("items")
                 .<Item,Product>join("product"));
      Specified by:
      select in interface CriteriaQuery<T>
      Parameters:
      selection - selection specifying the item that is to be returned in the query result
      Returns:
      the modified query

    • multiselect

      JpaCriteriaQuery<T> multiselect(Selection<?>... selections)
      Description copied from interface: CriteriaQuery
      Specify the selection items that are to be returned in the query result. Replaces the previously specified selection(s), if any. The type of the result of the query execution depends on the specification of the type of the criteria query object created as well as the arguments to the multiselect method.

      An argument to the multiselect method must not be a tuple- or array-valued compound selection item.

      The semantics of this method are as follows:

      • If the type of the criteria query is CriteriaQuery<Tuple> (i.e., a criteria query object created by either the createTupleQuery method or by passing a Tuple class argument to the createQuery method), a Tuple object corresponding to the arguments of the multiselect method, in the specified order, will be instantiated and returned for each row that results from the query execution.
      • If the type of the criteria query is CriteriaQuery<X> for some user-defined class X (i.e., a criteria query object created by passing a X class argument to the createQuery method), the arguments to the multiselect method will be passed to the X constructor and an instance of type X will be returned for each row.
      • If the type of the criteria query is CriteriaQuery<X[]> for some class X, an instance of type X[] will be returned for each row. The elements of the array will correspond to the arguments of the multiselect method, in the specified order.
      • If the type of the criteria query is CriteriaQuery<Object> or if the criteria query was created without specifying a type, and only a single argument is passed to the multiselect method, an instance of type Object will be returned for each row.
      • If the type of the criteria query is CriteriaQuery<Object> or if the criteria query was created without specifying a type, and more than one argument is passed to the multiselect method, an instance of type Object[] will be instantiated and returned for each row. The elements of the array will correspond to the arguments to the multiselect method, in the specified order.
      Specified by:
      multiselect in interface CriteriaQuery<T>
      Parameters:
      selections - selection items corresponding to the results to be returned by the query
      Returns:
      the modified query

    • multiselect

      JpaCriteriaQuery<T> multiselect(List<Selection<?>> selectionList)
      Description copied from interface: CriteriaQuery
      Specify the selection items that are to be returned in the query result. Replaces the previously specified selection(s), if any.

      The type of the result of the query execution depends on the specification of the type of the criteria query object created as well as the argument to the multiselect method. An element of the list passed to the multiselect method must not be a tuple- or array-valued compound selection item.

      The semantics of this method are as follows:

      • If the type of the criteria query is CriteriaQuery<Tuple> (i.e., a criteria query object created by either the createTupleQuery method or by passing a Tuple class argument to the createQuery method), a Tuple object corresponding to the elements of the list passed to the multiselect method, in the specified order, will be instantiated and returned for each row that results from the query execution.
      • If the type of the criteria query is CriteriaQuery<X> for some user-defined class X (i.e., a criteria query object created by passing a X class argument to the createQuery method), the elements of the list passed to the multiselect method will be passed to the X constructor and an instance of type X will be returned for each row.
      • If the type of the criteria query is CriteriaQuery<X[]> for some class X, an instance of type X[] will be returned for each row. The elements of the array will correspond to the elements of the list passed to the multiselect method, in the specified order.
      • If the type of the criteria query is CriteriaQuery<Object> or if the criteria query was created without specifying a type, and the list passed to the multiselect method contains only a single element, an instance of type Object will be returned for each row.
      • If the type of the criteria query is CriteriaQuery<Object> or if the criteria query was created without specifying a type, and the list passed to the multiselect method contains more than one element, an instance of type Object[] will be instantiated and returned for each row. The elements of the array will correspond to the elements of the list passed to the multiselect method, in the specified order.
      Specified by:
      multiselect in interface CriteriaQuery<T>
      Parameters:
      selectionList - list of selection items corresponding to the results to be returned by the query
      Returns:
      the modified query

    • where

      JpaCriteriaQuery<T> where(Expression<Boolean> restriction)
      Description copied from interface: CriteriaQuery
      Modify the query to restrict the query result according to the specified boolean expression. Replaces the previously added restriction(s), if any. This method only overrides the return type of the corresponding AbstractQuery method.
      Specified by:
      where in interface AbstractQuery<T>
      Specified by:
      where in interface CriteriaQuery<T>
      Specified by:
      where in interface JpaSelectCriteria<T>
      Parameters:
      restriction - a simple or compound boolean expression
      Returns:
      the modified query

    • where

      JpaCriteriaQuery<T> where(Predicate... restrictions)
      Description copied from interface: CriteriaQuery
      Modify the query to restrict the query result according to the conjunction of the specified restriction predicates. Replaces the previously added restriction(s), if any. If no restrictions are specified, any previously added restrictions are simply removed. This method only overrides the return type of the corresponding AbstractQuery method.
      Specified by:
      where in interface AbstractQuery<T>
      Specified by:
      where in interface CriteriaQuery<T>
      Specified by:
      where in interface JpaSelectCriteria<T>
      Parameters:
      restrictions - zero or more restriction predicates
      Returns:
      the modified query

    • groupBy

      JpaCriteriaQuery<T> groupBy(Expression<?>... grouping)
      Description copied from interface: CriteriaQuery
      Specify the expressions that are used to form groups over the query results. Replaces the previous specified grouping expressions, if any. If no grouping expressions are specified, any previously added grouping expressions are simply removed. This method only overrides the return type of the corresponding AbstractQuery method.
      Specified by:
      groupBy in interface AbstractQuery<T>
      Specified by:
      groupBy in interface CriteriaQuery<T>
      Specified by:
      groupBy in interface JpaSelectCriteria<T>
      Parameters:
      grouping - zero or more grouping expressions
      Returns:
      the modified query

    • groupBy

      JpaCriteriaQuery<T> groupBy(List<Expression<?>> grouping)
      Description copied from interface: CriteriaQuery
      Specify the expressions that are used to form groups over the query results. Replaces the previous specified grouping expressions, if any. If no grouping expressions are specified, any previously added grouping expressions are simply removed. This method only overrides the return type of the corresponding AbstractQuery method.
      Specified by:
      groupBy in interface AbstractQuery<T>
      Specified by:
      groupBy in interface CriteriaQuery<T>
      Specified by:
      groupBy in interface JpaSelectCriteria<T>
      Parameters:
      grouping - list of zero or more grouping expressions
      Returns:
      the modified query

    • having

      JpaCriteriaQuery<T> having(Expression<Boolean> restriction)
      Description copied from interface: CriteriaQuery
      Specify a restriction over the groups of the query. Replaces the previous having restriction(s), if any. This method only overrides the return type of the corresponding AbstractQuery method.
      Specified by:
      having in interface AbstractQuery<T>
      Specified by:
      having in interface CriteriaQuery<T>
      Specified by:
      having in interface JpaSelectCriteria<T>
      Parameters:
      restriction - a simple or compound boolean expression
      Returns:
      the modified query

    • having

      JpaCriteriaQuery<T> having(Predicate... restrictions)
      Description copied from interface: CriteriaQuery
      Specify restrictions over the groups of the query according the conjunction of the specified restriction predicates. Replaces the previously added having restriction(s), if any. If no restrictions are specified, any previously added restrictions are simply removed. This method only overrides the return type of the corresponding AbstractQuery method.
      Specified by:
      having in interface AbstractQuery<T>
      Specified by:
      having in interface CriteriaQuery<T>
      Specified by:
      having in interface JpaSelectCriteria<T>
      Parameters:
      restrictions - zero or more restriction predicates
      Returns:
      the modified query

    • orderBy

      JpaCriteriaQuery<T> orderBy(Order... o)
      Description copied from interface: CriteriaQuery
      Specify the ordering expressions that are used to order the query results. Replaces the previous ordering expressions, if any. If no ordering expressions are specified, the previous ordering, if any, is simply removed, and results will be returned in no particular order. The left-to-right sequence of the ordering expressions determines the precedence, whereby the leftmost has highest precedence.
      Specified by:
      orderBy in interface CriteriaQuery<T>
      Parameters:
      o - zero or more ordering expressions
      Returns:
      the modified query

    • orderBy

      JpaCriteriaQuery<T> orderBy(List<Order> o)
      Description copied from interface: CriteriaQuery
      Specify the ordering expressions that are used to order the query results. Replaces the previous ordering expressions, if any. If no ordering expressions are specified, the previous ordering, if any, is simply removed, and results will be returned in no particular order. The order of the ordering expressions in the list determines the precedence, whereby the first element in the list has highest precedence.
      Specified by:
      orderBy in interface CriteriaQuery<T>
      Parameters:
      o - list of zero or more ordering expressions
      Returns:
      the modified query