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Corrected merge error where CyclicBarrier example had moved under

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Intercepting Filter. Should be under Callback.
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Ilkka Seppala 2015-04-04 21:10:12 +03:00
parent 968fb1dd66
commit e136e6a47b
1 changed files with 2 additions and 3 deletions
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@ -437,6 +437,8 @@ Presentation Tier patterns are the top-most level of the application, this is co
**Applicability:** Use the Callback pattern when
* When some arbitrary synchronous or asynchronous action must be performed after execution of some defined activity.
**Real world examples:**
* [CyclicBarrier] (http://docs.oracle.com/javase/7/docs/api/java/util/concurrent/CyclicBarrier.html#CyclicBarrier%28int,%20java.lang.Runnable%29) constructor can accept callback that will be triggered every time when barrier is tripped.
## <a name="intercepting-filter">Intercepting Filter</a> [&#8593;](#list-of-design-patterns)
**Intent:** Provide pluggable filters to conduct necessary pre-processing and post-processing to requests from a client to a target
@ -448,9 +450,6 @@ Presentation Tier patterns are the top-most level of the application, this is co
* a system should do the authentication/ authorization/ logging or tracking of request and then pass the requests to corresponding handlers
* you want a modular approach to configuring pre-processing and post-processing schemes
**Real world examples:**
* [CyclicBarrier] (http://docs.oracle.com/javase/7/docs/api/java/util/concurrent/CyclicBarrier.html#CyclicBarrier%28int,%20java.lang.Runnable%29) constructor can accept callback that will be triggered every time when barrier is tripped.
## <a name="execute-around">Execute Around</a> [&#8593;](#list-of-design-patterns)
**Intent:** Execute Around idiom frees the user from certain actions that should always be executed before and after the business method. A good example of this is resource allocation and deallocation leaving the user to specify only what to do with the resource.