Package util

Class VariableManager

  • public class VariableManager
extends java.lang.Object
    Author:
    JIBOYE Oluwagbemiro Olaoluwa

    • Field Detail

      • VARIABLES

        public static final java.util.Map<java.lang.String,​Variable> VARIABLES

    • Constructor Detail

      • VariableManager

        public VariableManager()

    • Method Detail

      • getEndOfLine

        public static java.lang.String getEndOfLine()

      • getVarStore

        public java.util.Map<java.lang.String,​Variable> getVarStore()
        Returns:
        the ArrayList object that stores the Variable data of objects of this class.

      • load

        public static void load​(java.util.Collection<Variable> variables)
        Loads the Variable objects in this Collection into the VARIABLES Map.
        Parameters:
        variables - A Collection of Variable objects.

      • load

        public static void load​(java.util.Map<java.lang.String,​Variable> variables)
        Loads the Variable objects in this Map into the VARIABLES Map.
        Parameters:
        variables - A Map of Variable objects.

      • load

        public static void load​(java.util.Map<java.lang.String,​Variable> variables,
                        boolean clearFirst)
        Loads the Variable objects in this Map into the VARIABLES Map.
        Parameters:
        variables - A Map of Variable objects.
        clearFirst - If true, then the VARIABLES is cleared first before new content is loaded into it.

      • contains

        public boolean contains​(java.lang.String variableName)
        Parameters:
        variableName - The name attribute of the variable we are searching the variable store for.
        Returns:
        true if it finds a variable by that name in the store.

      • parseSingleCommand

        public Variable parseSingleCommand​(java.lang.String cmd)
        Parses a command that creates a single variable or changes its value.
        Parameters:
        cmd - The command string to parse.

      • parseCommand

        public void parseCommand​(java.lang.String cmd)
        Parses a command that creates or changes the value of variables.
        Parameters:
        cmd - The command string to parse.

      • update

        public static void update()
        Saves stored vasriables and updates the UI that renders the variables.

      • init

        public static void init()
        Initializes the variables store and loads them from persistent storage

      • getVariable

        public static Variable getVariable​(java.lang.String vName)
        Parameters:
        vName - The name of the Variable object.
        Returns:
        the Variable object that has the name supplied if it exists. If no such Variable object exists, then it returns null.

      • lookUp

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

      • delete

        public static void delete​(java.lang.String varName)
        deletes a Variable or constant whose name is known
        Parameters:
        varName - the name of the Variable object to be deleted

      • add

        public static void add​(Variable var)
        Introduces a Variable
        Parameters:
        var - the name of the Variable object to be added to the Variable Registry

      • add

        public static void add​(Variable... vars)
        Introduces an array or variable-args list of Variable
        Parameters:
        vars - the variable args list of the Variable objects to be added to the Variable Registry

      • clearVariables

        public static void clearVariables()
        Clears all Variables

      • clearConstants

        public void clearConstants()
        Clears all constants

      • clearVariablesAndConstants

        public void clearVariablesAndConstants()
        Clears All Variables and Constants

      • generateCommandStringFromVariableNamesArray

        public static java.lang.String generateCommandStringFromVariableNamesArray​(java.lang.String[] variableNames)
        Parameters:
        variableNames - An array containing valid variable names
        Returns:
        a command string that initializes the variable names to 0.0 e.g if the array is [a,v,b,m,n], then the output is: a=0.0;v=0.0;b=0.0;m=0.0;n=0.0

      • getVariables

        public static final java.util.ArrayList<Variable> getVariables()

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object

      • main

        public static void main​(java.lang.String[] args)