# Package org.apache.mina.filter.util

Utility classes for the MINA filtering portion of the library.

See: Description

- Class Summary
  Class | Description
  --- | ---
  CommonEventFilter | Extend this class when you want to create a filter that wraps the same logic around all 9 IoEvents
  NoopFilter | A Noop filter.
  ReferenceCountingFilter | An `IoFilter`s wrapper that keeps track of the number of usages of this filter and will call init/destroy when the filter is not in use.
  SessionAttributeInitializingFilter | An `IoFilter` that sets initial attributes when a new `IoSession` is created.
  WriteRequestFilter | An abstract `IoFilter` that simplifies the implementation of an `IoFilter` that filters an `IoEventType.WRITE` event.

## Package org.apache.mina.filter.util Description

Utility classes for the MINA filtering portion of the library.

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