org.jscience.computing.ai.planning
Class InternalOperator

java.lang.Object
  org.jscience.computing.ai.planning.CompileTimeObject
      org.jscience.computing.ai.planning.InternalElement
          org.jscience.computing.ai.planning.InternalOperator

public class InternalOperator
extends InternalElement

Each operator at compile time is represented as an instance of this class.

Constructor Summary

InternalOperator(Predicate head, LogicalPrecondition preIn, java.util.Vector delIn, java.util.Vector addIn, Term costIn)
To initialize an InternalOperator object.

Method Summary

java.lang.String

toCode() This function produces the Java code needed to implement this operator.

Methods inherited from class org.jscience.computing.ai.planning.InternalElement

getCnt, getHead

Methods inherited from class java.lang.Object

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

Constructor Detail

InternalOperator

public InternalOperator(Predicate head,
                        LogicalPrecondition preIn,
                        java.util.Vector delIn,
                        java.util.Vector addIn,
                        Term costIn)

To initialize an InternalOperator object.

Parameters:

head - head of the operator (i.e., the primitive task that can be achieved by applying this operator).

preIn - the logical precondition for this operator.

delIn - the delete list of the operator. The first element of the Vector is of type Integer. If it is not null, it means that the delete list of this operator is a variable, and the value of the Integer shows that variable's index. Otherwise, the rest of the Vector is of type DelAddElement, representing the atoms and protections that will be deleted from the state of the world when this operator is applied.

addIn - the add list of the operator. The first element of the Vector is of type Integer. If it is not null, it means that the add list of this operator is a variable, and the value of the Integer shows that variable's index. Otherwise, the rest of the Vector is of type DelAddElement, representing the atoms and protections that will be added to the state of the world when this operator is applied.

costIn - the cost of the operator.

Method Detail

toCode

public java.lang.String toCode()

This function produces the Java code needed to implement this operator.

Specified by:

toCode in class CompileTimeObject

Returns:

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