aima.search.framework
Class Problem

java.lang.Object
  aima.search.framework.Problem

Direct Known Subclasses:

BidirectionalMapProblem

public class Problem
extends java.lang.Object

Artificial Intelligence A Modern Approach (2nd Edition): page 62. A problem can be defined formally by four components: 1) Initial State. 2) Successor Function. 3) Goal Test. 4) Path Cost.

Field Summary

protected GoalTest	goalTest
protected HeuristicFunction	heuristicFunction
protected java.lang.Object	initialState
protected StepCostFunction	stepCostFunction
protected SuccessorFunction	successorFunction

Constructor Summary

protected	Problem()
	Problem(java.lang.Object initialState, SuccessorFunction successorFunction, GoalTest goalTest)
	Problem(java.lang.Object initialState, SuccessorFunction successorFunction, GoalTest goalTest, HeuristicFunction heuristicFunction)
	Problem(java.lang.Object initialState, SuccessorFunction successorFunction, GoalTest goalTest, StepCostFunction stepCostFunction)
	Problem(java.lang.Object initialState, SuccessorFunction successorFunction, GoalTest goalTest, StepCostFunction stepCostFunction, HeuristicFunction heuristicFunction)

Method Summary

HeuristicFunction	getHeuristicFunction()
java.lang.Object	getInitialState()
StepCostFunction	getStepCostFunction()
SuccessorFunction	getSuccessorFunction()
boolean	isGoalState(java.lang.Object 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

successorFunction

protected SuccessorFunction successorFunction

goalTest

protected GoalTest goalTest

stepCostFunction

protected StepCostFunction stepCostFunction

heuristicFunction

protected HeuristicFunction heuristicFunction

Constructor Detail

Problem

protected Problem()

Problem

public Problem(java.lang.Object initialState,
               SuccessorFunction successorFunction,
               GoalTest goalTest)

Problem

public Problem(java.lang.Object initialState,
               SuccessorFunction successorFunction,
               GoalTest goalTest,
               StepCostFunction stepCostFunction)

Problem

public Problem(java.lang.Object initialState,
               SuccessorFunction successorFunction,
               GoalTest goalTest,
               HeuristicFunction heuristicFunction)

Problem

public Problem(java.lang.Object initialState,
               SuccessorFunction successorFunction,
               GoalTest goalTest,
               StepCostFunction stepCostFunction,
               HeuristicFunction heuristicFunction)

Method Detail

getInitialState

public java.lang.Object getInitialState()

isGoalState

public boolean isGoalState(java.lang.Object state)

getStepCostFunction

public StepCostFunction getStepCostFunction()

getSuccessorFunction

public SuccessorFunction getSuccessorFunction()

getHeuristicFunction

public HeuristicFunction getHeuristicFunction()