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Java - Method name collision in interface implementation
...d ? I cannot even expect client code to be able to cast my instance to the appropriate interface , so am I not loosing something by this restriction ? Also note that in this way , when writing classes that actually implement the respective interfaces , we loose the benefit of having the code into a ...
How do I prevent Eclipse from hanging on startup?
... freezes after I started using its generic web connector), but the problem appeared even after uninstalling the connector, and even deleting the .mylyn directories.
Edit: I also managed to restart eclipse by deleting just one file:
rm $WORKSPACE_DIR/.metadata/.plugins/org.eclipse.e4.workbench/work...
Hibernate Criteria returns children multiple times with FetchType.EAGER
I have an Order class that has a list of OrderTransactions and I mapped it with a one-to-many Hibernate mapping like so:
...
How to render and append sub-views in Backbone.js
I have a nested-View setup which can get somewhat deep in my application. There are a bunch of ways I could think of initializing, rendering and appending the sub-views, but I'm wondering what common practice is.
...
Creation timestamp and last update timestamp with Hibernate and MySQL
...ava.util.Date;
import javax.persistence.Column;
import javax.persistence.MappedSuperclass;
import javax.persistence.PrePersist;
import javax.persistence.PreUpdate;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
@MappedSuperclass
public abstract class AbstractTimestampEnt...
Building a complete online payment gateway like Paypal [closed]
... of major banks, they all end up using one of five or so card acquirers.
Happily, all UK card acquirers use a standard protocol for communication of authorisation requests, and end of day settlement. You will find minor quirks where some acquiring banks support some features and have slightly diff...
Usages of Null / Nothing / Unit in Scala
...mple is this:
implicit def zeroNull[B >: Null] =
new Zero[B] { def apply = null }
Nothing is used in the definition of None
object None extends Option[Nothing]
This allows you to assign a None to any type of Option because Nothing 'extends' everything.
val x:Option[String] = None
...
Deleting a resource using http DELETE
...rb in Http is idempotent, when I issue the following request, what should happen the second (or third, or fourth, etc...)?
...
What's the difference between dynamic (C# 4) and var?
...Length);
and
string s = "abc";
Console.WriteLine(s.Length);
All that happened was that the compiler figured out that s must be a string (from the initializer). In both cases, it knows (in the IL) that s.Length means the (instance) string.Length property.
dynamic is a very different beast; it i...
Emacs in Windows
...lso contains Nxml, can be installed or built from sources, and with this wrapper, the Emacs server starts if no server is running. Cheers!
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