I have a Java library I'm considering porting to C#. The Java library makes extensive use of annotations (at both build time and run time.) I've never used C# attributes, but understand that they are the rough equivalent of Java annotations. If I proceed with the port using attributes to replace annotations, what do I need to know? W...
I have just discovered this feature. Declaring an interface using the "@interface" syntax allows you to put a default value. public @interface HelloWorld { public String sayHello() default "hello world"; } This is something new for me. How is that default value suppose to be used. I cannot find references to that, because the...
This question is somewhat related to http://stackoverflow.com/questions/305880/hibernate-annotation-placement-question. But I want to know which is better? Access via properties or access via fields? What are the advantages and disadvantages of each? ...
I came accross the xdoclet project and see it enjoys/ed high popularity. So the question is, now that we have annotations in java: is xdoclet legacy? Or is there something to xdoclet I didn't see/understand. ...
Which is better? @SuppressWarnings("unchecked") @SuppressWarnings(AnnotationConstants.UNCHECKED) Where AnnotationConstants is a typical constants class... public final class AnnotationConstants { private AnnotationConstants() { } public static final String UNCHECKED = "unchecked"; ... } I know that there are a lot of...
We are connecting to a SQL Server to persist our EJB3 objects. These objects are annotated up with @Column. If the column name in the database starts with a capital letter (E.g. OrderName) will the ejb annotation have case sensitivity issues if the element is defined like such: @Column String orderName Thanks ...
Hello, I'm trying to use Micosoft's SAL annotation for my project, however I get the following warning, and I don't know why. As an example, I created a new C++ console application, and have this code: #include <sal.h> class Whatever { public: _Check_return_ int Method(__in int number) ; }; int main() { return 0; } When I ...
I want to implement an intialization mechanism that is annotation-based in Java. Specifically, I have an annotation I've defined: @Retention(RetentionPolicy.RUNTIME) @Target(ElementType.METHOD) public @interface Initialization { /** * If the eager initialization flag is set to <code>true</code> then the * initialized class will be i...
I have a class that is annotated as the @XmlRootElement with @XmlAccessorType(XmlAccessType.NONE). The problem that I am having is that the superclass's methods are being bound, when I do not want them to be bound, and cannot update the class. I am hoping there is an annotation that I can put on the root element class to prevent this f...
I am looking for a solution to save a XML-File in a database using Hibernate. The problem is, that the structure of the XML-file is different to the Hibernate-beans. I'm trying to use JAXB to serialize the XML-content to the Hibernate beans. Please imagine the following scenario: There is this xml file: <root> <general> ...
I've recently started creating my own annotations and to sport TDD/BDD, I'd want to unit test my annotations to create a clear specification for them. However since annotations are basically merely fancy interfaces which to my knowledge can't be really instantiated directly, is there any way short of reflection to unit test an annotation...
Hello! I want to create a custom annotation (using Java) which would accept other annotations as parameter, something like: public @interface ExclusiveOr { Annotation[] value(); } But this causes compiler error "invalid type for annotation member". Object[] also doesn't work. Is there a way to do what I want? ...
I am considering starting a project which is used to generate code in Java using annotations (I won't get into specifics, as it's not really relevant). I am wondering about the validity and usefulness of the project, and something that has struck me is the dependence on the Annontation Processor Tool (apt). What I'd like to know, as I ...
I'm trying to set up a Hibernate filter with annotations. I would like to specify it in a base class and make all sub classes use it but whenever I try to enable it, Hibernate fails to find the filter. Is it possible at all to inherit filter annotations? ...
Hi all, I'm trying to document an annotated interface and include a sample of how it's used in the javadoc. e.g. /** * Here's an example usage: * * <PRE> * @IFaceAnnotation(value="") * public interface IFace { * * @MethodAnnotation("") * public String Method(); * } * </PRE> */ However, Javadoc treats my annotations...
I'm trying to use Java annotations, but can't seem to get my code to recognize that one exists. What am I doing wrong? import java.lang.reflect.*; import java.lang.annotation.*; @interface MyAnnotation{} public class FooTest { @MyAnnotation public void doFoo() { } public static void main(String[] a...
The question tells it all. For the experts, is there a reason the SUN java 5 compiler accepts recursive annotations (contrary to the langspec), while the later compilers do not? I mean, what could be an argument against recursive annotations. Edit: a recursive annotation is something like: @Panel(layout=BorderLayout.class, nested=...
I have the following code: @BeforeClass public static void setUpOnce() throws InterruptedException { fail("LOL"); } And various other methods that are either @Before, @After, @Test or @AfterClass methods. The test doesn't fail on start up as it seems it should. Can someone help me please? I have JUnit 4.5 The me...
I've created simple annotation in Java @Retention(RetentionPolicy.RUNTIME) @Target(ElementType.FIELD) public @interface Column { String columnName(); } and class public class Table { @Column(columnName = "id") private int colId; @Column(columnName = "name") private String colName; private int noAnnotationHe...
Maybe a dumb question, but it would be nice if there was a way to hide or collapse Java annotations when viewing source in Netbeans (or Eclipse). I'm not finding an option and a quick search didn't turn anything up. Is this one of those "you should never want to do that, code folding is a sin!" things? Personally I'd find it useful fo...