# Package org.apache.mina.handler.chain

A handler implementation that helps you implement sequentially layered protocols using Chains of Responsibility pattern.

See: Description

- Interface Summary
  Interface | Description
  --- | ---
  IoHandlerCommand | A `IoHandlerCommand` encapsulates a unit of processing work to be performed, whose purpose is to examine and/or modify the state of a transaction that is represented by custom attributes provided by `IoSession`.
  IoHandlerCommand.NextCommand | Represents an indirect reference to the next `IoHandlerCommand` of the `IoHandlerChain`.

- Class Summary
  Class | Description
  --- | ---
  ChainedIoHandler | An `IoHandler` which executes an `IoHandlerChain` on a `messageReceived` event.
  IoHandlerChain | A chain of `IoHandlerCommand`s.

## Package org.apache.mina.handler.chain Description

A handler implementation that helps you implement sequentially layered protocols using Chains of Responsibility pattern.

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