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What are detached, persistent and transient objects in hibernate?
...r removal from the
database.
session.remove(city);
Note:
Hibernate API offers couples of methods to switch between entity states, and I think it's worth exploring a Hibernate Session class.
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Dependency injection with Jersey 2.0
...'m not sure what EntityManager is, but judging by docs.oracle.com/javaee/6/api/javax/persistence/… it seems to be an interface. You can bind it using bind(EntityManagerImpl.class).to(EntityManager.class) (which will bind a class EntityManagerImpl implementing the interface EntityManager. If you ne...
What order are the Junit @Before/@After called?
...void setUp() ) and @After ( public void tearDown() ) method to establish API and DB connections. What I've been doing is just overriding those two methods in each testcase and calling super.setUp() and super.tearDown() . However this can cause problems if someone forgets to call the super or pu...
Is there a destructor for Java?
...rces, use an explicit method call. This convention can be seen in existing APIs (e.g. Closeable, Graphics.dispose(), Widget.dispose()) and is usually called via try/finally.
Resource r = new Resource();
try {
//work
} finally {
r.dispose();
}
Attempts to use a disposed object should throw...
What is a good pattern for using a Global Mutex in C#?
...instance event safely in VB.NET? not in C# docs.microsoft.com/es-es/dotnet/api/…
– Kiquenet
Aug 14 '19 at 20:35
See ...
Android Camera Preview Stretched
...
I'm using this method -> based on API Demos to get my Preview Size:
private Camera.Size getOptimalPreviewSize(List<Camera.Size> sizes, int w, int h) {
final double ASPECT_TOLERANCE = 0.1;
double targetRatio=(double)h / w;
if (s...
Hidden Features of C#? [closed]
...and set the value to null, it would be very strange for someone using your API.
– Ian
Oct 7 '09 at 8:16
8
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Changing java platform on which netbeans runs
...hose who already had netbeans_jdkhome with >=7 version. Put the Java EE API library into the Library folder and don't forget to set JDK 7 by right clicking on project and choosing Properties->Sources and set Source/Binary format select JDK7 among options.
– Arthur Kushman...
node.js child process - difference between spawn & fork
...optimal for this particular, and very useful, use case.
http://nodejs.org/api/child_process.html#child_process_child_process_exec_command_options_callback
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What is the difference between mocking and spying when using Mockito?
...(toAccount,amount);
}
Yes, you can change to the first code but then API is changed. If this method is being used by many places, you have to change all of them.
Alternative is that you can extract the dependency out like this:
public void transfer(String fromAccount, String toAccount, d...