java - Checking error value after each step -


i have following java method:

public error mymainmethod() {   error ret = invokefirstsub();   if (ret != error.no_error) {     return ret;   }   ret = invokesecondsub();   if (ret != error.no_error) {     return ret;   }   // rest }

basically, after each sub invocation check return value , exit when error occurs. how can refactored? first idea put whole invocation sequence inside try-catch loop, asserts , catch first assertionerror, don't find quite elegant. practice?

based on refactoring practices there 2 improvements possible:

  1. avoid multiple return statements (makes code readability clumsy large method having many return statements)

  2. encapsulate logic wherever possible i.e. move error checking logic method iserror() inside error enum

    public error mymainmethod() {

    error ret = invokefirstsub();

    ret = (ret.iserror()) ? ret : invokesecondsub();

    ret = (ret.iserror()) ? ret : invokethirdsub();

    // on , finally

    ret = (ret.iserror()) ? ret : error.no_error;

    // rest

    return ret; }

further noted strategy pattern might fit though based on feasibility in case in managing subs 1 per class or subs in class.


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