| 摘要 |
Event-based processing is employed in conjunction with lazy and stateless events. Addition of any handlers is deferred until a user-specified handler is identified. Furthermore, event handlers can be composed at this time including the same properties as underlying events. More specifically, handlers specified on composite events can be composed and propagated up to a one or more related source events. As a result, handlers are not accumulated on composite events thereby making them stateless while allowing equivalent functionality upon invocation of the composed top-level handler.
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