io.github.dddplus.model.spcification

接口 ISpecification<T>

所有已知实现类:

AbstractSpecification, AndSpecification, OrSpecification

public interface ISpecification<T>

Specification interface，归约模式(Specification Pattern).

ISpecification is part of our DDD building block.

Specifications are small, single‐purpose classes(SRP), similar to policies.

不是Always-Valid Model吗？为什么还把规约提出来？不违反该原则吗？
• if validation depends exclusively on an entity's data then it stays inside the entity
• if validation depends on information from multiple entities or external services, use Specification

方法概要

限定符和类型	方法和说明
boolean	isSatisfiedBy(T candidate) Check if candidate is satisfied by the specification.
boolean	isSatisfiedBy(T candidate, Notification notification) Same as isSatisfiedBy(Object) except that it accepts Notification to pass more detailed error info.

方法详细资料

isSatisfiedBy

boolean isSatisfiedBy(T candidate)

Check if candidate is satisfied by the specification.

参数:

candidate -

返回:

isSatisfiedBy

boolean isSatisfiedBy(T candidate,
                      Notification notification)

Same as isSatisfiedBy(Object) except that it accepts Notification to pass more detailed error info.

参数:

candidate -

notification -

返回: