Package util

Class VariableManager.CommandInterpreter

java.lang.Object
util.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.

  • Constructor Summary

    Constructors 
    Constructor Description
    CommandInterpreter()  
    CommandInterpreter​(java.lang.String command)  

  • 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 Details

    • CommandInterpreter

      public CommandInterpreter()

    • CommandInterpreter

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

  • Method Details

    • 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.