Package fr.uga.pddl4j.planners.htn.stn

Class PFDNode

java.lang.Object

fr.uga.pddl4j.planners.htn.stn.AbstractSTNNode

fr.uga.pddl4j.planners.htn.stn.PFDNode

All Implemented Interfaces:

Serializable

public final class PFDNode
extends AbstractSTNNode

This class implements a node for the PFDPlanner planner of the PDDL4J library.

Since:

4.0

See Also:

Serialized Form

Field Summary

Fields inherited from class fr.uga.pddl4j.planners.htn.stn.AbstractSTNNode

DEFAULT_OPERATOR, DEFAULT_TASK

Constructor Summary

Constructors

Constructor	Description
PFDNode()	Creates a new empty node with an empty state and an empty task network.
PFDNode(PFDNode other)	Creates a new node from an other.
PFDNode(State state, TaskNetwork taskNetwork)	Creates a new node with a specified state and task network.
PFDNode(State state, TaskNetwork taskNetwork, PFDNode parent, int operator, int task)	Creates a new node with a specified state and task network.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)	Returns true if a node is equals to an other object.
TaskNetwork	getTaskNetwork()	Returns the task network of the node.
int	hashCode()	Returns the hash code value of the node.
void	setTaskNetwork(TaskNetwork taskNetwork)	Sets the tasks network of the node.

Methods inherited from class fr.uga.pddl4j.planners.htn.stn.AbstractSTNNode

getOperator, getParent, getState, getTask, setOperator, setParent, setState, setTask

Methods inherited from class java.lang.Object

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

Constructor Details

PFDNode

public PFDNode(PFDNode other)

Creates a new node from an other. This constructor creates a deep copy of the node in parameters.

Parameters:

other - the node to be copied.

PFDNode

public PFDNode()

Creates a new empty node with an empty state and an empty task network. The parent node is set to null, the operator is set to DEFAULT_OPERATOR and the task is set to DEFAULT_TASK.

PFDNode

public PFDNode(State state,
 TaskNetwork taskNetwork)

Creates a new node with a specified state and task network. The parent node is set to null, the operator is set to DEFAULT_OPERATOR and the task is set to DEFAULT_TASK.

Parameters:

state - state of this node.

taskNetwork - the task network of the node.

PFDNode

public PFDNode(State state,
 TaskNetwork taskNetwork,
 PFDNode parent,
 int operator,
 int task)

Creates a new node with a specified state and task network.

Parameters:

state - srate of this node.

taskNetwork - the task network of the node.

parent - the parent node of the node.

operator - the index of the operator applied to reach the node.

task - the task processed in this node.

Method Details

getTaskNetwork

public final TaskNetwork getTaskNetwork()

Returns the task network of the node. The task network describes the set of tasks to be accomplished and their constraints that have to be verified.

Returns:

the task network of the node.

setTaskNetwork

public final void setTaskNetwork(TaskNetwork taskNetwork)

Sets the tasks network of the node. The task network describes the set of tasks to be accomplished and their constraints that have to be verified.

Parameters:

taskNetwork - the task network of the node.

equals

public boolean equals(Object obj)

Returns true if a node is equals to an other object. An object is equals to this node if and only if the other object is an instance of PFDNode and have the same task network.

Overrides:

equals in class Object

Parameters:

obj - the object to be compared.

Returns:

true if a node is equals to an other object, false otherwise.

See Also:

Object.equals(java.lang.Object)

hashCode

public int hashCode()

Returns the hash code value of the node.

Overrides:

hashCode in class Object

Returns:

the hash code value of the node.

See Also:

Object.hashCode()