大约有 46,000 项符合查询结果（耗时：0.0861秒） [XML]
JPA CascadeType.ALL does not delete orphans
... all child elements
delete main row
close session
With JPA 2.0, you can now use the option orphanRemoval = true
@OneToMany(mappedBy="foo", orphanRemoval=true)
share
|
improve this answer
...
How to send a message to a particular client with socket.io
I'm starting with socket.io + node.js, I know how to send a message locally and to broadcast socket.broadcast.emit() function:- all the connected clients receive the same message.
...
Coding Conventions - Naming Enums
... I started naming my enums that way, but for readability, I have now been using Fruit.Apple instead of Fruit.APPLE.
– Walter White
Jun 18 '10 at 14:00
38
...
Ruby on Rails vs ASP.NET MVC 3 for a .NET Guy? [closed]
...
Now that ASP.NET MVC is open source, I wonder how quickly it will close the feature gap with RoR. I'm putting my money on MVC3 now that the developer community will have the ability to contribute to a product that is still su...
How to make custom error pages work in ASP.NET MVC 4
...o add a bit of logic though, to show the stack trace and error information if the application is in debug mode. So Error.cshtml looks something like this:
@model System.Web.Mvc.HandleErrorInfo
@{
Layout = "_Layout.cshtml";
ViewBag.Title = "Error";
}
<div class="list-header clearfix">
...
Why use AJAX when WebSockets is available?
I've been using WebSockets for a while now, I have chosen to create an Agile project management tool for my final year project at University utilizing Node server and WebSockets. I found using WebSockets provided a 624% increase in the number of requests per second my application could process.
...
Make git automatically remove trailing whitespace before committing
...sing git with my team and would like to remove whitespace changes from my diffs, logs, merges, etc. I'm assuming that the easiest way to do this would be for git to automatically remove trailing whitespace (and other whitespace errors) from all commits as they are applied.
...
Can't connect Nexus 4 to adb: unauthorized
... to unplug/replug the S4 in, then I got the 'authorize' prompt within S4. Now adb devices shows "device" and i can run my apps.
– Rob
Oct 19 '14 at 14:40
4
...
Why is my Git Submodule HEAD detached from master?
...date <rebase|merge>
In the common cases, you already have fixed by now your DETACHED HEAD since it was related to one of the configuration issues above.
fixing DETACHED HEAD when .update = checkout
$ cd <submodule-path> # and make modification to your submodule
$ git add .
$ git comm...
Android: Expand/collapse animation
...o I post my actual solution. The main advantage is that you don't have to know the expanded height to apply the animation and once the view is expanded, it adapts height if content changes. It works great for me.
public static void expand(final View v) {
int matchParentMeasureSpec = View.Measur...