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Java Enum Error Code


When you need a predefined list of values which do not represent some kind of numeric or textual data, you should use an enum. Aren't subclasses easier to maintain? You can even build it yourself. public enum WSCode implements ErrorCode error: Interface Expected Here 2. click site

Actually we may have two situations: the code/message is displayed to the end user or to the system integrator. If you look closely at the error message, you'll see that it's telling you that you don't have a c'tor that takes an int. I like your dynamic fields in exception, hope I'm allowed to borrow it 🙂 Thanks for sharing. Concept of Enum is obtained from the counterpart technologies like C, C++, C# etc.

How To Get Error Code From Exception In Java

It was very useful. Meaningless Switch-Case Use: When you use statuses above in switch case, you cannot use the variable names; instead you will have to use the meaningless/uninformative numbers to compare. private String description = ""; public Error changeDescription(String description) { this.description = description; return this; } .... } Error genericError = Error.DATABASE; Error specific = Error.DUPLICATE_USER.changeDescription("(Call Admin)"); EDIT: ok, using enum

Things get worse if you're in a multi-server environment. Please send a sample example. Better to put more thought into discovering good exception names, IMO. –duffymo Jan 15 '09 at 18:34 | show 2 more comments up vote 1 down vote A little late but, Custom Exception With Error Code In Java All Rights Reserved.

I remain unconvinced that I should ignore the classes-as-types and use enums as types. Java Error Codes Best Practices if a program prints status = 3, the reader will have to go and find out what does it actually mean. Who knows, that later client programmers might parse that error messages(public) as part of their program. The easiest way to do this is to add a java.util.Map field to the exception.  The new field's job will be to hold all your exception related data by name.  You'll

Reply RajeshAugust 21, 2014 at 8:49 amPermalinkvery good one for all the programmers..keep posting this similar type of articles … ReplyLeave a Reply Cancel replyYour email address will not be published. Error Codes In Java Pingback: How to read data in parallel using AsyncMultiReader - Data Pipeline Pingback: How To Throw customized Block Exception in Java - codeengine By prash - February 2, 2016 8:03 PM Download the Source Code Download Java exception tracker 1. Each enum has a few methods that contain as part of the method signature 'throws Exception'.

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Java Error Codes Best Practices

By Obi - January 19, 2013 12:39 PM Reply Lovely approach and will put it to use right away! public interface ErrorCode {
int getNumber();
} Try changing your code to match the above, that should fix both issues. How To Get Error Code From Exception In Java But a like this article a lot. Java Error Codes List attaching basic object behavior of hashCode(), toString() and equals() methods.

I wrote a few utility routines that helped log errors, wrap them as exceptions (if desired) and so forth. get redirected here Java public class SystemExceptionExample3 {     public static void main(String[] args) {         System.out.println(getUserText(ValidationCode.VALUE_TOO_SHORT));     }     public static String getUserText(ErrorCode errorCode) {         if (errorCode == null) {             return By Dele Taylor - August 20, 2013 6:37 AM Reply I wanted each category of errorCodes to be represented by a different enum type. Thanks! Java Defining Error Codes

By nimysan - March 20, 2013 11:18 AM Reply Very cool. fatal, error, warn) in error codes. Not using types in Java is almost always an error. http://shpsoftware.com/error-code/java-getting-error-code.php Pingback: » Enlaces de interés. 3era Búsqueda By filt - March 12, 2013 10:27 PM Reply well ,I will put it to use the project By Jean-Simon Larochelle - March 13,

We start with an example of primary use and then explore little complex uses later.Example 1:In this example, we have one value for the status. Java Exception Codes if required (at leastin environments, where the Exception classes and friends are extendable/changeable) share|improve this answer answered Jan 15 '09 at 13:56 blabla999 2,7551318 The error code is in public class RequestStatus { private final int status; private RequestStatus(int aStatus){ this.status = aStatus; } public static final RequestStatus STATUS_OPEN = new RequestStatus(0); public static final RequestStatus STATUS_STARTED = new RequestStatus(1);

I'm concentrating on getting this thing out the door, but when we look at internationalization, I think I will do what you suggested.

Is there a way to use a String (a map key) as an argument of a method expecting Enum type?0Enum Java Not saved as Strings with Enumerated Annotation2Error-prone Java enum refactoring You will be locked forever to support this, as changes in string format will/may break client program. I am using Enums for all error messages and using message format so I can pass in extra variables. Enum Error Codes C++ I'm trying to get them to let me open-source it... -- Scott share|improve this answer answered Jan 15 '09 at 18:56 Scott Stanchfield 21.7k63657 Nice way of handling error

Thanks a lot! Readability of program goes down considerably in this case.Non-Iterative List: This is a list of values, but you cannot iterate over it the way you can on any collection.The solution to Between, overuse of enums might mean that your methods do too much (it's often better to have several separate methods, rather than one method that takes several flags which modify what http://shpsoftware.com/error-code/java-code-error.php Thanks By Dele Taylor - March 23, 2013 3:53 AM Reply Thanks for the kudos Nimysan.

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