org.seedstack.business.specification.dsl

Interface SpecificationBuilder

public interface SpecificationBuilder

SpecificationBuilder is a DSL that facilitates the creation of complex composite specifications. It relies on expressing boolean predicates in the disjunctive normal form, which is a disjunction (OR) of conjunctive clauses (AND). In other words it requires that the predicates are expressed as an OR clause of AND clauses.

Examples of formulae in DNF:

• (A ∧ ¬B ∧ ¬C) ∨ (¬D ∧ E ∧ F)
• (A ∧ B) ∨ C
• A ∧ B
• A

Method Summary

Modifier and Type	Method and Description
<T,S extends PropertySelector<T,S>> S	of(Class<T> anyClass) Starts the building of a composite specification that applies on any type.
<A extends AggregateRoot<I>,I,S extends AggregateSelector<A,I,S>> S	ofAggregate(Class<A> aggregateClass) Starts the building of a composite specification that applies on any AggregateRoot.

Method Detail

of

<T,S extends PropertySelector<T,S>> S of(Class<T> anyClass)

Starts the building of a composite specification that applies on any type.

Type Parameters:

T - the type of the object the specification applies to.

S - the type of the selector.

Parameters:

anyClass - the class the specification applies to.

Returns:

the next operation of the builder DSL, allowing to select all or a part of the object the specification will apply to.

ofAggregate

<A extends AggregateRoot<I>,I,S extends AggregateSelector<A,I,S>> S ofAggregate(Class<A> aggregateClass)

Starts the building of a composite specification that applies on any AggregateRoot.

Type Parameters:

A - the type of the aggregate the specification applies to.

I - the type of the identifier of the aggregate.

S - the type of the selector.

Parameters:

aggregateClass - the aggregate class the specification applies to.

Returns:

the next operation of the builder DSL, allowing to select all or a part of the object the specification will apply to.