aima.core.search.nondeterministic

Class NondeterministicProblem

java.lang.Object

aima.core.search.nondeterministic.NondeterministicProblem

public class NondeterministicProblem
extends java.lang.Object

Non-deterministic problems may have multiple results for a given state and action; this class handles these results by mimicking Problem and replacing ResultFunction (one result) with ResultsFunction (a set of results).

Author:

Andrew Brown

Field Summary

Fields

Modifier and Type	Field and Description
protected ActionsFunction	actionsFunction
protected GoalTest	goalTest
protected java.lang.Object	initialState
protected ResultFunction	resultFunction
protected ResultsFunction	resultsFunction
protected StepCostFunction	stepCostFunction

Constructor Summary

Constructors

Constructor and Description
NondeterministicProblem(java.lang.Object initialState, ActionsFunction actionsFunction, ResultsFunction resultsFunction, GoalTest goalTest) Constructor
NondeterministicProblem(java.lang.Object initialState, ActionsFunction actionsFunction, ResultsFunction resultsFunction, GoalTest goalTest, StepCostFunction stepCostFunction) Constructor

Method Summary

Modifier and Type	Method and Description
ActionsFunction	getActionsFunction() Returns the description of the possible actions available to the agent.
GoalTest	getGoalTest() Returns the goal test.
java.lang.Object	getInitialState() Returns the initial state of the agent.
ResultsFunction	getResultsFunction() Return the description of what each action does.
StepCostFunction	getStepCostFunction() Returns the path cost function.
boolean	isGoalState(java.lang.Object state) Returns true if the given state is a goal state.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

initialState

protected java.lang.Object initialState

actionsFunction

protected ActionsFunction actionsFunction

resultFunction

protected ResultFunction resultFunction

goalTest

protected GoalTest goalTest

stepCostFunction

protected StepCostFunction stepCostFunction

resultsFunction

protected ResultsFunction resultsFunction

Constructor Detail

NondeterministicProblem

public NondeterministicProblem(java.lang.Object initialState,
                               ActionsFunction actionsFunction,
                               ResultsFunction resultsFunction,
                               GoalTest goalTest)

Constructor

Parameters:

initialState -

actionsFunction -

resultsFunction -

goalTest -

NondeterministicProblem

public NondeterministicProblem(java.lang.Object initialState,
                               ActionsFunction actionsFunction,
                               ResultsFunction resultsFunction,
                               GoalTest goalTest,
                               StepCostFunction stepCostFunction)

Constructor

Parameters:

initialState -

actionsFunction -

resultsFunction -

goalTest -

stepCostFunction -

Method Detail

getInitialState

public java.lang.Object getInitialState()

Returns the initial state of the agent.

Returns:

the initial state of the agent.

isGoalState

public boolean isGoalState(java.lang.Object state)

Returns true if the given state is a goal state.

Returns:

true if the given state is a goal state.

getGoalTest

public GoalTest getGoalTest()

Returns the goal test.

Returns:

the goal test.

getActionsFunction

public ActionsFunction getActionsFunction()

Returns the description of the possible actions available to the agent.

Returns:

the description of the possible actions available to the agent.

getResultsFunction

public ResultsFunction getResultsFunction()

Return the description of what each action does.

Returns:

the description of what each action does.

getStepCostFunction

public StepCostFunction getStepCostFunction()

Returns the path cost function.

Returns:

the path cost function.