burlap.domain.singleagent.blocksworld

Class BlocksWorld.StackAction

java.lang.Object

burlap.oomdp.singleagent.Action

burlap.domain.singleagent.blocksworld.BlocksWorld.StackAction

Enclosing class:

BlocksWorld

public class BlocksWorld.StackAction
extends Action

Action class for stacking one block onto another. The both blocks must be clear for one to be stacked on the other.

Author:

James MacGlashan

Field Summary

Fields inherited from class burlap.oomdp.singleagent.Action

actionObservers, domain, name, parameterClasses, parameterOrderGroup

Constructor Summary

Constructors

Constructor and Description
BlocksWorld.StackAction(java.lang.String name, Domain domain)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	applicableInState(State st, java.lang.String[] params) Returns true if this action can be applied in this specified state with the specified parameters.
java.util.List<TransitionProbability>	getTransitions(State s, java.lang.String[] params) Returns the transition probabilities for applying this action in the given state with the given set of parameters.
protected State	performActionHelper(State st, java.lang.String[] params) This method determines what happens when an action is applied in the given state with the given parameters.

Methods inherited from class burlap.oomdp.singleagent.Action

addActionObserver, applicableInState, clearAllActionsObservers, deterministicTransition, equals, getAllApplicableGroundedActions, getAllApplicableGroundedActionsFromActionList, getDomain, getName, getParameterClasses, getParameterOrderGroups, getTransitions, hashCode, init, isPrimitive, parametersAreObjects, performAction, performAction

Methods inherited from class java.lang.Object

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

Constructor Detail

BlocksWorld.StackAction

public BlocksWorld.StackAction(java.lang.String name,
                       Domain domain)

Method Detail

applicableInState

public boolean applicableInState(State st,
                        java.lang.String[] params)

Description copied from class: Action

Returns true if this action can be applied in this specified state with the specified parameters. Default behavior is that an action can be applied in any state, but this will need be overridden if that is not the case.

Overrides:

applicableInState in class Action

Parameters:

st - the state to perform the action on

params - a String array specifying the action object parameters

Returns:

whether the action can be performed on the given state

performActionHelper

protected State performActionHelper(State st,
                        java.lang.String[] params)

Description copied from class: Action

This method determines what happens when an action is applied in the given state with the given parameters. The State object s may be directly modified in this method since the parent method first copies the input state to pass to this helper method. The resulting state (which may be s) should then be returned.

Specified by:

performActionHelper in class Action

Parameters:

st - the state to perform the action on

params - a String array specifying the action object parameters

Returns:

the resulting State from performing this action

getTransitions

public java.util.List<TransitionProbability> getTransitions(State s,
                                                   java.lang.String[] params)

Description copied from class: Action

Returns the transition probabilities for applying this action in the given state with the given set of parameters. Transition probabilities are specified as list of TransitionProbability objects. The list is only required to contain transitions with non-zero probability. Since not all planning algorithms require the full transition dynamics (and since it's impossible to enumerate them in some infinite state space domains), this method is not requried to be implemented. However, it will throw an UnsupportedOperationException if it is not overriden by the Action subclass if it is called by an algorithm that requires it.

Overrides:

getTransitions in class Action

Parameters:

s - the state from which the transition probabilities when applying this action will be returned.

params - a String array specifying the action object parameters

Returns:

a List of transition probabilities for applying this action in the given state with the given set of parameters