Package util

Class VariableManager.CommandInterpreter

  • Enclosing class:
    VariableManager
    public class VariableManager.CommandInterpreter
extends java.lang.Object
    Objects of this class parse a variable initialization or modifying command string. For example var x = 2;var y=3; var z =4; x=9;y=3.123;const k = 3x+z; k=34; var p,q,r=32; const r,s,t=25; z=3.123; All that is needed to execute the parse is to create an object of the class with the available constructor. At the end of the object creation, the parse has been executed and if it is successful, a call to getAccumulator() will return a java.util.List object filled with the Variable objects embedded in the command. Also at the end of the object creation( the call to the constructor of this class) The VARIABLES attribute of the containing class will have been fed with the Variable objects embedded in the command parsed here. The feeding could be the insertion of the Variable objects, if the store doe not already contain them,or updating Variable objects in the store with the incoming ones if they have the same name. The behavior of the parser is such that it interpretes and executes the code on the fly. This means that it will stop inserting data in the VARIABLES only when it detects error in the code.

    • Method Summary

      Modifier and Type Method Description
      java.lang.String getCommand()  
      boolean isValid()  
      void parse()
      Conducts an holistic parse of the input data.
      void setCommand​(java.lang.String command)  
      void setValid​(boolean valid)  

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • CommandInterpreter

        public CommandInterpreter()

      • CommandInterpreter

        public CommandInterpreter​(java.lang.String command)
        Parameters:
        command - The variable creation command string.

    • Method Detail

      • setCommand

        public void setCommand​(java.lang.String command)

      • getCommand

        public java.lang.String getCommand()

      • setValid

        public void setValid​(boolean valid)

      • isValid

        public boolean isValid()

      • parse

        public void parse()
        Conducts an holistic parse of the input data.