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Thread: how to code a work around for a missing class

  1. #26
    Super Moderator Norm's Avatar
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    Default Re: how to code a work around for a missing class

    Where is the variable: properties given a value? In other words: Where is it to the left of an =?

    no
    I have asked so many questions that you have skipped or ignored, I do not know which one this is an answer to.
    Please explain.

    --- Update ---

    Where is the variable: properties declared?
    Something like: Properties properties ...
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: how to code a work around for a missing class

    [QUOTE=Norm;170906]Where is the variable: properties given a value? In other words: Where is it to the left of an =?
    public class BM_mod10 implements IStrategy {
        //
        private         Vector<Stg_Base>     strategies;        
        private            boolean           mInitialized  = false;
        private            long              mTimeInfoS    = 0;
        private            long              mTimeLev      = 0;
        private static final     boolean           testing          = false;
        /**
         * Interface to the main engine, that allows orders submission, merging etc
         */
        private static    IEngine           engine         = null;
            /**
         * Methods of this interface allows to retrieve account information such as
         * current equity
         */
        private static final    IAccount          account        = null;
        /**
         * The IHistory interface represents API for historical data
         * access.
         */
        private static final    IHistory          history        = null;
        private static    IConsole          console        = null;
        private static    IContext          context        = null;
        //Instantiating the properties file
        public static     Properties        properties     = new Properties();
        public  static    Logger            logger         = null;

    I have asked so many questions that you have skipped or ignored, I do not know which one this is an answer to.
    Please explain.[COLOR="Silver"]

    no - in answer to question:-Have you tried adding the source for a Properties class with the required methods to the source of one of your programs that uses Properties class?

  3. #28
    Super Moderator Norm's Avatar
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    Default Re: how to code a work around for a missing class

    Ok, that looks about right.
    Can you try adding a Properties class with the required methods to see if your code will compile without errors?
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: how to code a work around for a missing class

    That's where I am at a loss

    All I understand is that I need to create a properties class which has 3 methods
    putProperty(), getProperty() and containsKeyProperty()
    The first should be identical to the existing java putProperty() with both arguments being strings
    The second needs to cater for the second argument being either an integer, a double or a boolean value
    The third, I am unsure

  5. #30
    Super Moderator Norm's Avatar
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    Default Re: how to code a work around for a missing class

    What have you tried? Post the current code and any error messages you get when compiling it.

    When you get a clean compile for the Properties class, try adding it to one of your classes that uses it to see if that class will compile with your version.

    When you get clean compiles, then work on filling in the details on what the code needs to do.

    A sample get method for testing:
       boolean getProperty(String s, boolean b) {
          return b;
       }

    ================================================== ==============
    Why have properties? What good are they? Why not just hardcode the values set by the put method?
    Instead of having these two statements:
                properties.put("signaler.macd.gemFast","12"); 
                gemFast        = BM_mod10.properties.getProperty("signaler.macd.gemFast", 12);

    Just have this one simple statement:
    		gemFast = 12;
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: how to code a work around for a missing class

    re your second point:-

    That is exactly what I have coded in the meantime
    I have commented out all the put, get, containsKey code

    and have a whole lot of variable = value lines

    It is just that I am unsure that the correct variables are getting the correct values

    Do you think the whole properties exercise is not necessary?

    --- Update ---

    an example of what I have at the moment
                // STATIC properties
    /*            gebAmount           = BM_mod10.properties.getProperty("strategy.gebAmount",0.01);
                gebMaxOrders        = BM_mod10.properties.getProperty("strategy.gebMaxOrders", 1);                
                gebRatGoal          = BM_mod10.properties.getProperty("strategy.gebRatGoal", 60);
                gebRatStop          = BM_mod10.properties.getProperty("strategy.gebRatStop", 100);
                gebRatTrailing      = BM_mod10.properties.getProperty("strategy.gebRatTrailing", 0);
                gebOrderWithLimit   = BM_mod10.properties.getProperty("strategy.gebOrderWithLimit", true);
                gebOrderToRun       = BM_mod10.properties.getProperty("strategy.gebOrderToRun", false);
                gebReEnter          = BM_mod10.properties.getProperty("strategy.gebReEnter", true);
    */
                gebAmount           = 0.01;
                gebMaxOrders        = 1;                
                gebRatGoal          = 60;
                gebRatStop          = 100;
                gebRatTrailing      = 0;
                gebOrderWithLimit   = true;
                gebOrderToRun       = false;
                gebReEnter          = true;

  7. #32
    Super Moderator Norm's Avatar
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    Default Re: how to code a work around for a missing class

    Do you think the whole properties exercise is not necessary?
    Yes. I don't see any use for them if the put methods always set the same values.

    I use properties in my programs to save program state/values across executions of the program. For example the last folder where a file was loaded from or the location on the screen where the window was displayed.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: how to code a work around for a missing class

    Norm

    Thank you for expending so much energy in trying to unravel my brain

    I need to go away and convince myself that removing the whole property concept and hard-coding the values results in the same set of variable values

    I shall come back if I find it hard to do that exercise successfully

    Bob M
    New Zealand

    p.s. I am 75 years young

  9. #34
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    Default Re: how to code a work around for a missing class

    Glad to be able to help. Come back anytime.
    I spent 18 months in NZ in 89-91. Worked at AirNZ in Auckland for a year. Loved NZ.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: how to code a work around for a missing class

    You were correct Norm,
    Of all the many variables, only 3 have different values depending on the currency pair traded
    One a boolean and the other two integer values
    Now hard coded...........
    All good

    Bob M
    Dunedin, NZ

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