org.jscience.computing.ai.planning
Class LogicalExpressionNil

java.lang.Object
  org.jscience.computing.ai.planning.CompileTimeObject
      org.jscience.computing.ai.planning.LogicalExpression
          org.jscience.computing.ai.planning.LogicalExpressionNil

public class LogicalExpressionNil
extends LogicalExpression

Each empty logical expression at compile time is represented as an instance of this class.

Constructor Summary

LogicalExpressionNil()

Method Summary

java.lang.String	getInitCode() This class does not need any initialization code, therefore, this function simply returns an empty String.
protected void	propagateVarCount(int varCount) This class does not need to propagate the variable count, therefore, this function does nothing.
java.lang.String	toCode() This function produces the Java code to create a PreconditionNil object that represents this empty logical expression at run time.

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

getClassCnt, getVarCount, setVarCount

Methods inherited from class java.lang.Object

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

Constructor Detail

LogicalExpressionNil

public LogicalExpressionNil()

Method Detail

getInitCode

public java.lang.String getInitCode()

This class does not need any initialization code, therefore, this function simply returns an empty String.

Specified by:

getInitCode in class LogicalExpression

Returns:

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propagateVarCount

protected void propagateVarCount(int varCount)

This class does not need to propagate the variable count, therefore, this function does nothing.

Specified by:

propagateVarCount in class LogicalExpression

Parameters:

varCount - DOCUMENT ME!

toCode

public java.lang.String toCode()

This function produces the Java code to create a PreconditionNil object that represents this empty logical expression at run time.

Specified by:

toCode in class CompileTimeObject

Returns:

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