annotations

问题 I defined my own JUnit annotation: @ParameterizedTest @MethodSource("myorg.qa.ccrtesting.DataProviders#standardDataProvider") @Tags({@Tag("ccr"), @Tag("standard")}) public @interface CcrStandardTest { } Then, I was able to use that annotation in my tests: @CcrStandardTest public void E0010_contact_standard (String testData) { ... My run configuration: JVM options: -ea Class: myorg.qa.ccrtesting.ccrstandardtests.CcrStanConTest - This was suggested by the IDE (and is verified to point to the

问题 I'm working on developing a custom Java object persistence framework as I recently discussed in this question. One issue I am trying to solve is to force uniform annotation values in constructor parameter and method. Is it possible to know which parameter in constructor was used to set a specific field in class via reflection? For example, if constructor contains parameter String textXYZ and class contains field String textABC and in constructor I do: textABC = textXYZ (so field/parameter

问题 I am able to extract annotations present in a PDF page using iTextSharp. However, I am not able to edit these annotations. My requirement is that among multiple annotations I can search a specific annotation and then edit its content and save the PDF. On the opening of the PDF, the updated version should be displayed. However, I tried using itextsharp , spire and rasteredge but non-of them give any meaningful result. Below is the function made using RasterEdge. static void RasterEdit(string

问题 I want to annotate a fully qualified class name with @Nullable -annotation (from the Java Checker Framework), e.g.: class Demo { private transient @Nullable org.apache.lucene.search.Query cached_results; // ... } However this results in the error: scoping construct cannot be annotated with type-use annotation: @checkers.nullness.quals.Nullable How can I annotate fully qualified class names? 回答1: The Java language specification (draft for version 8) §8.3 specifies a "UnannClassType" as

问题 I am writing a simple custom annotation in Java and running into a problem with it. Here is the main parts of my code. LogMeCustomAnnotation.java package fun.n.learn.annotation; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; // We need this annotation only till before compilation. @Retention(RetentionPolicy.SOURCE) // This is a simple custom annotation. public @interface LogMeCustomAnnotation { } LogMeCustomAnnotationProcessor.java package fun.n.learn

问题 Reading the @RequestMapping documentation : http://static.springsource.org/spring/docs/2.5.x/api/org/springframework/web/bind/annotation/RequestMapping.html It accepts a String array parameter for its path mapping. So this works using java : @RequestMapping("MYVIEW") but in scala I need to use : @RequestMapping(Array("MYVIEW")) The scala version makes sense as the annotation expects a String array. But why does above work in java, should it not give a compile time error ? Below class

问题 Not sure if 'scope' is the correct term here. I am using Spring for JPA transaction management (with a Hibernate underneath). My method to preform database transaction is private, but since you can only set @Transactional on a class or on a public method Since this mechanism is based on proxies, only 'external' method calls coming in through the proxy will be intercepted. This means that 'self-invocation', i.e. a method within the target object calling some other method of the target object,

问题 Not sure if 'scope' is the correct term here. I am using Spring for JPA transaction management (with a Hibernate underneath). My method to preform database transaction is private, but since you can only set @Transactional on a class or on a public method Since this mechanism is based on proxies, only 'external' method calls coming in through the proxy will be intercepted. This means that 'self-invocation', i.e. a method within the target object calling some other method of the target object,

问题 I am working with Spring java code written by someone else. I want to reference a bean that's created by annotation (of field classABC): @Component public class ClassService { @Autowired ClassABC classABC; public interface ClassABC @Repository public class ClassABCImpl extends BaseABC implements ClassABC The following code tries to get a reference to the ClassABC bean by name, but does not work: ClassABC classABC = ApplicationContext.getBean("classABC"); However, the following code that

问题 Let's say I have particular code in old/legacy Java library: public class JavaClass { private String notNullString; private String nullableString; private String unannotatedString; public JavaClass(@NotNull String notNullString, @Nullable String nullableString, String unannotatedString) { this.notNullString = notNullString; this.nullableString = nullableString; this.unannotatedString = unannotatedString; } @NotNull public String getNotNullString() { return notNullString; } @Nullable public