java - Is it bad practice to have boolean setters to see whether they executed succesfully? -


is bad practice write setters booleans check if set correctly?

for example, following code set whether frame on top , return true if set decided. bad practice this, or should leave no return type? 

    public boolean setalwaysontop(boolean alwaysontop) {         frame.setalwaysontop(alwaysontop);         return frame.isalwaysontop() == alwaysontop;     }

bear in mind in example have getter when want check value when not attempting set it:

    public boolean isalwaysontop() {     return frame.isalwaysontop(); }

thanks in advance. if more information please feel free ask , provide it.

edit:

it's wondering if useful because 

if(setalwaysontop(true))

instead of using void this:

  setalwaysontop(true);

adding of additional conditions check api work not idea in general. frame.setalwaysontop must work. if don't trust api - cover unit tests. if tests fail should think work around solution - find working version of software, report bug or fix issue if have access code base.

such additional check can make sense if know existing problem , can not fixed now. in case raise custom exception setalwaysontop method (because know exceptional case), log error , perform sanity actions.

public void setalwaysontop(boolean alwaysontop) throws uimodificationexcepion {     frame.setalwaysontop(alwaysontop);     // due existing bug ... not updated cases     if (frame.isalwaysontop() != alwaysontop) {         throw new uimodificationexception("unable change 'always on top' property");     } }

client code

try {     setalwaysontop(true); } catch (exception e) {     log.warn("could not update on top", e);     // stuff }

Comments

Post a Comment

Popular posts from this blog

commonjs - How to write a typescript definition file for a node module that exports a function? -

consider, toml node module can use: // toml.d.ts declare module toml { export function parse(value:string):any; } declare module "toml" { export = toml; } then: /// <reference path="../../../../../defs/toml/toml.d.ts"/> import toml = require('toml'); toml.parse(...); however, node module export single function, such 'glob' ( https://github.com/isaacs/node-glob ). the node usage of module be: var glob = require("glob") glob("*.js", {}, callback(err, files) { ... }); you'd naively expect this: // glob.d.ts declare function globs(paths:string, options:any, callback:{(err:any, files:string[]):void; ...but because typescripts 'import' semantics bit strange, seems can use 'import .. = require()' statement alias modules . trying call: /// <reference path="../../../../../defs/glob/glob.d.ts"/> import blog = require('glob'); results in: error ts2072: mod...
Read more

openid - Okta: Failed to get authorization code through API call -

i'm integrating okta own idp server using okta's api. i'm implementing authorization code flow following steps below: in own server, use /api/v1/authn endpoint sessiontoken. use sessiontoken obtain authorization calling endpoint: /oauth2/v1/authorize?client_id=" + clientid + "&sessiontoken=" + sessiontoken + "&response_type=code&response_mode=query&scope=openid&redirect_uri=" + redirecturl + "&state=evanyang&nonce=" it's supposed return response status code 302 , location header containing redirect url code value. however, keep getting response status code 200 , without location header, html body saying "you using unsupported browser." , "javascript disabled on browser." according api documentation: http://developer.okta.com/docs/api/resources/oidc.html#authentication-request , sessiontoken parameter sufficient this: an okta one-time sessiontoken. allows api-based ...
Read more

ios - Change Storyboard View using Seague -

i have following code checks connection server, , depending on want change views if no connection found. nsstring *connect = [nsstring stringwithcontentsofurl:[nsurl urlwithstring:@"http://myserver.com"] encoding:nsutf8stringencoding error:nil]; if (connect == null) { [self performseguewithidentifier:@"network_failure" sender:self]; } else { // other code here } my problem not change views. have added storyboard segue between 2 views identifier of network_failure . not have navigation controller or that, problem? thanks help! no not problem. first of all, in objectivec exists nil object oriented null . must use that. so: if(connect == nil) or better: if(!connect) so due fact nil not same of null , probably code does't enter in if scope . you have been able discover breakpoint. anyway: be sure set trigger segue (line) 2 view controller , , name network_failure (that not best name. should instead view1toview2 ) as, m...
Read more