State transition

Q: How deeply does Build and Orchestrator in Go (From Scratch) cover state transition?

Defines states, tabulates valid moves, and implements map-based validation while deferring a full state-machine abstraction.

As explained in Build and Orchestrator in Go (From Scratch)

A state transition is a change of a task from one lifecycle state to another in response to an event.

A state transition moves a task from one lifecycle state to another when an event occurs. Modeling transitions explicitly prevents invalid moves, such as sending a running task back to scheduled or restarting a failed task. section 4.6.3

Table 4.1 State transition table showing the valid transitions from one state to another (view table figure)

CurrentState	Event	NextState
Pending	ScheduleEvent	Scheduled
Pending	ScheduleEvent	Failed
Scheduled	StartTask	Running
Scheduled	StartTask	Failed
Running	StopTask	Completed

Use the transition table to connect current state, triggering event, and next state before encoding the rules. section 4.6.3

How Build and Orchestrator in Go (From Scratch) covers it

Cover of Build and Orchestrator in Go (From Scratch)

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Also explained in

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Object-Oriented Software Design in C++A state transition is a change from one object state to another caused by a change in member-variable values.
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Software Design for Python ProgrammersA state transition is a change from one object state to another caused by changes in one or more attributes.
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React in DepthA state transition is a state machine operation that changes the machine from one state to another in response to an event or condition.
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Functional Programming in Scala, Second EditionA state action is a function that consumes an RNG state and returns a generated value together with a successor RNG state.
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Natural Language Processing in Action, Second EditionA state transition is a change from one conversational state to another in response to an input or condition.
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API Design PatternsA state transition is a change of a resource from one status or condition to another.

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Related concepts

finite-state machinepart of · A finite-state machine is a computational model with a finite set of states and defined transitions that govern changes of state in response to inputs, events, or conditions.
state design patternused by · The State design pattern encapsulates state-specific behavior in separate representations and delegates an object's behavior according to its current state.
eventproduced by · An event is an occurrence, change, or associated record or notification recognized as significant within a system or context.
AI agentproduced by · An AI agent is a computational system that uses artificial intelligence to interpret information, select actions, and pursue goals through interaction with an environment.
pure functionkind of · A pure function is a function whose output is determined solely by its explicit inputs and whose evaluation has no externally observable side effects.
Markov decision processpart of · A Markov decision process is a mathematical model of sequential decision-making defined by states, actions, probabilistic transitions, and rewards, with future dynamics depending on the current state and action.

This explainer was generated by Manning's knowledge graph from the text of Build and Orchestrator in Go (From Scratch). The section links point to the parts of the book it draws on.