ca.uqac.lif.cep.Stateful Interface Reference

Interface implemented by processors that can publicly expose a token equivalent to their internal state. More...

Public Member Functions
Object	getState () throws UnsupportedOperationException
	Gets the token corresponding to the processor's internal state. More...

Detailed Description

Interface implemented by processors that can publicly expose a token equivalent to their internal state.

This token can be an arbitrary object, including null. However, it must follow this condition: if two processor instances π₁ and π₂ (of the same class) respectively return two state tokens s₁ and s₂ such that s₁.equals(s₂) == true, then for any sequence of inputs, π₁ and π₂ must generate the same output.

Author

Sylvain Hallé

Since

0.11

Definition at line 34 of file Stateful.java.

Member Function Documentation

getState()

Object ca.uqac.lif.cep.Stateful.getState

(

)

throws UnsupportedOperationException

Gets the token corresponding to the processor's internal state.

Returns

The token

Exceptions

UnsupportedOperationException

Thrown if the internal state cannot be provided for some reason

Implemented in ca.uqac.lif.cep.GroupProcessor, ca.uqac.lif.cep.tmf.AbstractSlice, ca.uqac.lif.cep.tmf.QueueSource, ca.uqac.lif.cep.tmf.Window, ca.uqac.lif.cep.functions.ApplyFunction, ca.uqac.lif.cep.functions.Cumulate, ca.uqac.lif.cep.tmf.Pump, ca.uqac.lif.cep.tmf.CountDecimate, ca.uqac.lif.cep.tmf.Trim, ca.uqac.lif.cep.tmf.Freeze, ca.uqac.lif.cep.tmf.SimpleFilter, ca.uqac.lif.cep.functions.TurnInto, ca.uqac.lif.cep.tmf.Insert, ca.uqac.lif.cep.tmf.Passthrough, ca.uqac.lif.cep.util.Sets.SetUpdateProcessor, ca.uqac.lif.cep.tmf.Filter, ca.uqac.lif.cep.tmf.Stutter, and ca.uqac.lif.cep.tmf.Prefix.

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The documentation for this interface was generated from the following file:

• /home/sylvain/Workspaces/BeepBeep/beepbeep-3/Core/src/ca/uqac/lif/cep/Stateful.java