Synchronization is particularly useful in the implementation phase of services.
同步在服务的实现阶段特别有用。
2
The Barrier class is used to create synchronization points for multi-phase operations.
Barrier类的作用是在多个阶段的操作之间创建同步点。
3
Unlike Phasers, however, CyclicBarriers do not support the dynamic addition or removal of threads; nor do they support one-way synchronization or split-phase operation.