Databases
StackOverflow2013
Postsdbo
POIs it better to create a singleton to access unity container or pass it through the application?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POIs it better to create a singleton to access unity container or pass it through the application?
    primarykey
    data
    text
    <p>I am dipping my toe into using a IoC framework and I have choosen to use Unity. One of the things that I still don't fully understand is how to resolve objects deeper into the application. I suspect I just haven't had the light bulb on moment that will make it clear.</p> <p>So I am trying do something like the following in psuedo'ish code</p> <pre><code>void Workflow(IUnityContatiner contatiner, XPathNavigator someXml) { testSuiteParser = container.Resolve&lt;ITestSuiteParser&gt; TestSuite testSuite = testSuiteParser.Parse(SomeXml) // Do some mind blowing stuff here } </code></pre> <p>So the testSuiteParser.Parse does the following</p> <pre><code>TestSuite Parse(XPathNavigator someXml) { TestStuite testSuite = ??? // I want to get this from my Unity Container List&lt;XPathNavigator&gt; aListOfNodes = DoSomeThingToGetNodes(someXml) foreach (XPathNavigator blah in aListOfNodes) { //EDIT I want to get this from my Unity Container TestCase testCase = new TestCase() testSuite.TestCase.Add(testCase); } } </code></pre> <p>I can see three options:</p> <ol> <li>Create a Singleton to store my unity container that I can access anywhere. I really am not a fan of this approach. Adding a dependency like that to use a dependency injection framework seems a little on the odd side.</li> <li>Pass the IUnityContainer to my TestSuiteParser class and every child of it (assume it is n levels deep or in reality about 3 levels deep). Passing IUnityContainer around everywhere just looks odd. I may just need to get over this.</li> <li>Have the light bulb moment on the right way to use Unity. Hoping someone can help flick the switch.</li> </ol> <p>[EDIT] One of things that I wasn't clear on is that I want to create a new instance of test case for each iteration of the foreach statement. The example above needs to parse a test suite configuration and populate a collection of test case objects</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USbtlog
    1. USbtlog
    plurals
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    3. PL
      singulars
      1. LTLinked
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    3. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POIs it better to create a singleton to access unity container or pass it through the application?
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POIs it better to create a singleton to access unity container or pass it through the application?
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POIs it better to create a singleton to access unity container or pass it through the application?
      1. This table or related slice is empty.
      1. VTUpMod
    1. COit's like asking if it's better to die in a fire or drown.
      singulars
      1. POIs it better to create a singleton to access unity container or pass it through the application?
      1. USKrzysztof Kozmic
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload