Module jakarta.data
Package jakarta.data.restrict

Interface BasicRestriction<T,V>

Type Parameters:
T - entity type.
V - entity attribute type.
All Superinterfaces:
Restriction<T>
public interface BasicRestriction<T,V> extends Restriction<T>

A Jakarta Data provider's view of a restriction on a single entity attribute or expression.

This class is used by the Jakarta Data provider to interpret a restriction that is supplied by the application. The application should use the instructions in the Restriction class and the static metamodel to obtain a restriction.

Since:
1.1

  • Method Details

    • expression

      Expression<T,V> expression()

      Returns the entity attribute or expression to which this restriction applies.

      This method is intended for Jakarta Data providers.

      Returns:
      the entity attribute or expression.

    • constraint

      Constraint<V> constraint()

      Returns the constraint that this restriction applies to the entity attribute or expression.

      This method is intended for Jakarta Data providers.

      Returns:
      the constraint that is applied by this restriction.

    • of

      static <T, V> Restriction<T> of(Expression<T,V> expression, Constraint<V> constraint)

      Creates a new restriction that represents a constraint on the specified entity attribute or expression.

      Restrictions on entity attributes can often be obtained from the static metamodel more conveniently than from this method.

      Type Parameters:
      T - entity class.
      V - entity attribute class.
      Parameters:
      expression - the entity attribute or expression to which the restriction applies.
      constraint - the constraint that is applied by the restriction.
      Returns:
      the restriction.
      Throws:
      NullPointerException - if the expression or constraint is null.