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What are the entities of Intercepting Filter pattern?

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What are the entities of Intercepting Filter pattern?

Following are the entities of this type of design pattern.

Filter - Filter which will performs certain task prior or after execution of request by request handler.

Filter Chain - Filter Chain carries multiple filters and help to execute them in defined order on target.

Target - Target object is the request handler.

Filter Manager - Filter Manager manages the filters and Filter Chain.

Client - Client is the object who sends request to the Target object.

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