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Confusion: @NotNull vs. @Column(nullable = false) with JPA and Hibernate
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@NotNull is a JSR 303 Bean Validation annotation. It has nothing to do with database constraints itself. As Hibernate is the reference implementation of JSR 303, however, it intelligently picks up on these constraints and translates them into database con...
Button Click event fires when pressing Enter key in different input (no forms)
...xcellent fix. I thought browsers would only auto-submit on "Enter" when inside <form> tags. But I see I was wrong.
– Clayton Bell
Jul 3 '13 at 16:38
2
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Difference between socket and websocket?
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You can build websocket clients and use them outside of browsers. The websocket protocol is HTTP 1.1 with an upgraded connection to "websocket."
– Roger F. Gay
Sep 29 '11 at 16:57
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Cryptic “Script Error.” reported in Javascript in Chrome and Firefox
... to external domains. For an example of why this is necessary, imagine accidentally visiting evilsite.com, that serves up a page with <script src="yourbank.com/index.html">. (yes, we're pointing that script tag at html, not JS). This will result in a script error, but the error is interesti...
Merge branch with trunk
...verything still compiles and works
Commit the working copy (the trunk)
Consider killing the branch
In a team environment I would suggest that you first merge the latest modifications from the trunk in your branch, make sure that everything compiles and works, then do the above steps (which will be...
How to save a git commit message from windows cmd?
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You are inside vim. To save changes and quit, type:
<esc> :wq <enter>
That means:
Press Escape. This should make sure you are in command mode
type in :wq
Press Return
An alternative that stdcall in the comments menti...
PowerShell: Store Entire Text File Contents in Variable
...rter, that's what I prefer. Unfortunately, neither of the methods you provided for calculating the total number of lines takes trailing blank lines into consideration. Any other ideas?
– Nick
Nov 2 '11 at 7:20
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What is the AppDelegate for and how do I know when to use it?
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I normally avoid the design approach implied by Andrew's use of the term "heart of your application". What I mean by this is that I think you should avoid lumping too many things in a central location -- good program design normally involv...
How to pip install a package with min and max version range?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
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“unadd” a file to svn before commit
I was in the middle of doing a recursive svn add/commit, and a folder which did not have the proper ignore properties was included. I've got about 100 uploaded binary files versioned now, but I haven't committed yet.
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