Package math.differentialcalculus

Class FormulaManager

java.lang.Object
math.differentialcalculus.FormulaManager
public class FormulaManager
extends java.lang.Object
Author:
GBEMIRO

  • Constructor Summary

    Constructors 
    Constructor Description
    FormulaManager()  

  • Method Summary

    Modifier and Type Method Description
    void add​(Formula form)  
    void clearAll()  
    java.lang.Object[] comparisonData​(java.util.List<java.lang.String> data)
    THIS UTILITY METHOD CAN BE USED TO COMPARE THE DATA OF A FORMULA OBJECT WITH OTHER FORMULAE IN THE STORE TO SEE IF A FORMULA WITH SIMILAR DATA EXISTS ALREADY.
    boolean contains​(java.lang.String name)  
    int count()  
    void delete​(java.lang.String name)
    Removes a Formula object from this FormulaManager.
    Formula firstFormula()  
    Formula getFormula​(int index)  
    Formula getFormula​(java.lang.String name)  
    java.util.ArrayList<Formula> getFORMULAE()  
    int indexOf​(java.lang.String name)  
    Formula lastFormula()  
    Formula lookUp​(java.lang.String name)
    Attempts to retrieve a Formula object from a FormulaManager based on its name.
    int update​(java.lang.String name, java.lang.String newName)
    It updates the name of a Formula object in this FormulaManager with the parameter newName.
    int update​(java.lang.String name, java.util.List<java.lang.String> data)
    Updates a Formula object in this FormulaManager.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

  • Method Details

    • getFORMULAE

      public java.util.ArrayList<Formula> getFORMULAE()

    • count

      public int count()
      Returns:
      The number of Formula objects stored by an object of this class.

    • contains

      public boolean contains​(java.lang.String name)
      Parameters:
      name - The name of the Formula.
      Returns:
      true if a Formula exists by the name supplied.

    • comparisonData

      public java.lang.Object[] comparisonData​(java.util.List<java.lang.String> data)
      THIS UTILITY METHOD CAN BE USED TO COMPARE THE DATA OF A FORMULA OBJECT WITH OTHER FORMULAE IN THE STORE TO SEE IF A FORMULA WITH SIMILAR DATA EXISTS ALREADY. ALSO, THE COMPARISON RETURNS MULTIPLE INFORMATION, NOT JUST ONE.
      Parameters:
      data - The data of the Formula.
      Returns:
      an array having 3 entries. Index 0 contains 0 if a comparable Formula is found in the store. A comparable Formula is one that is either a constant factor of this one or is equivalent to this one...i.e. they evaluate to the same number, always. If index 0 contains -1, then no comparable Formula exists in the store and so indices 1 and 2 will also be -1. Index 1 contains the index at which the comparable Formula is found. Index 2 contains the factor. If factor =1 , then they are equivalent, else,they are constant factors of each other.

    • indexOf

      public int indexOf​(java.lang.String name)
      Parameters:
      name - The name of the dependent variable of the Formula.
      Returns:
      the index of the Formula object that has the name supplied. If no such Formula object exists, then it returns -1.

    • getFormula

      public Formula getFormula​(java.lang.String name) throws java.lang.ClassNotFoundException
      Parameters:
      name - The name of the Formula.
      Returns:
      the Formula object that has the name supplied if it exists. If no such Formula object exists, then it returns null.
      Throws:
      java.lang.ClassNotFoundException - if no Formula object by that name exists.

    • getFormula

      public Formula getFormula​(int index) throws java.lang.ClassNotFoundException
      Parameters:
      index - The index of the Formula in this FormulaManager object. If no such index exists, then it returns null.
      Throws:
      java.lang.ClassNotFoundException - if no Formula object by that name exists.

    • lookUp

      public Formula lookUp​(java.lang.String name)
      Attempts to retrieve a Formula object from a FormulaManager based on its name.
      Parameters:
      name - The name of the Formula object.
      Returns:
      the Formula object that has that name or null if the Formula is not found.

    • add

      public void add​(Formula form)
      Parameters:
      form - The Formula object to add to this object.

    • delete

      public void delete​(java.lang.String name)
      Removes a Formula object from this FormulaManager.

    • firstFormula

      public Formula firstFormula()

    • lastFormula

      public Formula lastFormula()

    • update

      public int update​(java.lang.String name, java.lang.String newName)
      It updates the name of a Formula object in this FormulaManager with the parameter newName.
      Parameters:
      name - The name of the Formula in this FormulaManager that we wish to update.
      newName - The new name to give the Formula.
      Returns:
      The index of the object, if a Formula by that name is already recorded in the FormulaManager and -1 the Formula is not found.

    • update

      public int update​(java.lang.String name, java.util.List<java.lang.String> data)
      Updates a Formula object in this FormulaManager.
      Parameters:
      name - The name of the Formula object to be updated.
      data - The data to be used to update the object if found.
      Returns:
      The index of the object, if a Formula by that name is already recorded in the FormulaManager and -1 the Formula is not found.

    • clearAll

      public void clearAll()