diff --git a/README.md b/README.md index 71225c87f..ddfd3f30c 100644 --- a/README.md +++ b/README.md @@ -56,19 +56,6 @@ Behavioral patterns are concerned with algorithms and the assignment of responsi Presentation Tier patterns are the top-most level of the application, this is concerned with translating tasks and results to something the user can understand. -* [Intercepting Filter](#intercepting-filter) - -## Intercepting Filter [↑](#list-of-design-patterns) -**Intent:** Provide pluggable filters to conduct necessary pre-processing and post-processing to requests from a client to a target - -![alt text](https://github.com/iluwatar/java-design-patterns/blob/master/abstract-factory/etc/abstract-factory_1.png "Intercepting Filter") - -**Applicability:** Use the Intercepting Filter pattern when -* a system uses pre-processing or post-processing requests -* 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:** -* [javax.xml.parsers.DocumentBuilderFactory](http://docs.oracle.com/javase/8/docs/api/javax/xml/parsers/DocumentBuilderFactory.html) ## Abstract Factory [↑](#list-of-design-patterns) **Intent:** Provide an interface for creating families of related or dependent objects without specifying their concrete classes. @@ -439,6 +426,19 @@ 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. +* [Intercepting Filter](#intercepting-filter) + +## Intercepting Filter [↑](#list-of-design-patterns) +**Intent:** Provide pluggable filters to conduct necessary pre-processing and post-processing to requests from a client to a target + +![alt text](https://github.com/iluwatar/java-design-patterns/blob/master/abstract-factory/etc/abstract-factory_1.png "Intercepting Filter") + +**Applicability:** Use the Intercepting Filter pattern when +* a system uses pre-processing or post-processing requests +* 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 + + # Frequently asked questions