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Difference between ref and out parameters in .NET [duplicate]
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The line mentioned as "This is not C#" is now actually C# as of C# 7 docs.microsoft.com/en-us/dotnet/csharp/whats-new/…
– TJ Rockefeller
Apr 24 at 16:42
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PersistentObjectException: detached entity passed to persist thrown by JPA and Hibernate
...s (even in good ones) and through the net, which do exactly that. I don't know, why... Perhaps sometimes simply copied over and over without much thinking...
Guess what happens if you call remove(transaction) still having "cascade ALL" in that @ManyToOne? The account (btw, with all other transacti...
Array or List in Java. Which is faster?
...someone used an int throughout for a key in a map (to save space/time). We now need to change all lines to a new object - its painful.
– Fortyrunner
Apr 4 '09 at 19:30
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Foreign key constraints: When to use ON UPDATE and ON DELETE
... interesting thing to do with that on an update, but I may be wrong.
And now on the ON DELETE side:
ON DELETE RESTRICT : the default : if you try to delete a company_id Id in table COMPANY the engine will reject the operation if one USER at least links on this company, can save your life.
ON DEL...
How can Xml Documentation for Web Api include documentation from beyond the main project?
...tor.SelectSingleNode and remove the _documentNavigator. portion so that it now calls the new SelectSingleNode method we defined above.
This Last step is what modifies the document provider to support looking within multiple XML documents for the help text rather than just the primary project's.
N...
How to build for armv6 and armv7 architectures with iOS 5
...u have to support older stuff for a while. And I guess the Xcode dev team knows this too, which is why you can add armv6 support back in quite simply.
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How to use PrimeFaces p:fileUpload? Listener method is never invoked or UploadedFile is null / throw
...s = uploadedFile.getContents(); // Or getInputStream()
// ... Save it, now!
}
Or if you want non-ajax file upload:
<h:form enctype="multipart/form-data">
<p:fileUpload mode="simple" value="#{bean.uploadedFile}" />
<p:commandButton value="Upload" action="#{bean.upload}" ...
When to use std::forward to forward arguments?
...nally, you need forward to turn the lvalue-turned x (because it has a name now!) back into an rvalue reference if it was one initially.
You should not forward something more than once however, because that usually does not make sense: Forwarding means that you're potentially moving the argument all...
Where is Xcode's build folder?
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~/Library/Developer/Xcode/DerivedData is now the default.
You can set the prefs in Xcode to allow projects to specify their build directories.
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Error 1046 No database Selected, how to resolve?
... in SQL file. Can you please clarify that once more. I am having the issue now.
– Rahul S
Jul 15 '15 at 5:02
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