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Create the perfect JPA entity [closed]
...uff that's going to go in the HttpSession, or be sent over the wire by RPC/Java EE, needs to implement Serializable. Other stuff: not so much. Spend your time on what's important.
Constructors: create a constructor with all required fields of the entity?
Constructor(s) for application logic, shoul...
WSDL vs REST Pros and Cons
... addition, the client-library support isn't that good outside the world of Java and .NET
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How to manage REST API versioning with spring?
... // and to /v3/x/c
}
Implementation:
ApiVersion.java annotation:
@Target({ElementType.METHOD, ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
public @interface ApiVersion {
int[] value();
}
ApiVersionRequestMappingHandlerMapping.java (this is mostly copy and ...
How to use PrimeFaces p:fileUpload? Listener method is never invoked or UploadedFile is null / throw
...t;h:head> in the (master) template. This will ensure that the necessary JavaScript files are properly included. This is not required for mode="simple" (non-ajax upload), but this would break look'n'feel and functionality of all other PrimeFaces components, so you don't want to miss that anyway.
W...
What is the significance of 1/1/1753 in SQL Server?
...ric dates.
This contrasts with other Software implementations such as the Java Gregorian Calendar class which defaults to following the Julian Calendar for dates until October 4, 1582 then jumping to October 15, 1582 in the new Gregorian calendar. It correctly handles the Julian model of leap year ...
How do I get the current GPS location programmatically in Android?
...s not available then try to use network for find the location.
GPSTracker.java
public class GPSTracker extends Service implements LocationListener {
private final Context mContext;
// Flag for GPS status
boolean isGPSEnabled = false;
// Flag for network status
boolean isNet...
Why / when would it be appropriate to override ToString?
...t's state. Emphasis on state as a requirement. Strongly OOP languages like Java/C# abuse the OOP model by encapsulating everything in a class. Imagine you are coding in a language that doesn't follow the strong OOP model; consider whether you'd use a class or a function. If you would use it as a fun...
Can a class member function template be virtual?
...ns based on my name? I did not confuse generics and templates. I know that Java's generics are purely run time. You didn't exhaustively explain why you cannot have virtual member function templates in C++, but InQsitive did. You overly simplified the template and virtual mechanics to 'compile time' ...
What is the purpose of Rank2Types?
...ave made out. Believe it or not, many object-oriented languages (including Java and C#!) feature them. (Of course, no one in those communities knows them by the scary-sounding name "higher-rank types".)
The example I'm going to give is a textbook implementation of the Visitor pattern, which I use a...
What is the difference between JSON and Object Literal Notation?
Can someone tell me what is the main difference between a JavaScript object defined by using Object Literal Notation and JSON object ?
...