annotations

问题 I really like the way Eclipse has pop-up Javadoc documentation for the various Java library classes I use. However, I also use JPA and JAXB annotations such as @Entity and @XMLType. Eclipse recognises these as valid because I can hit ctrl-space and they pop-up. I also get Javadoc for javax classes. But there is no Javadoc for these annotations...it just reports that Javadoc could not be found. I've downloaded the javadoc, installed it on my system and associated with all the JARs in my Java6

问题 I'm in a project where I need to use the above specific JAVA Version. And I wan't to use a custom annotation and query it's presence during RUNTIME using reflection. So I wrote an annotation, a class to annotate and a test class. The problem ist that, the annotation is not there. When I use one of the built in Annotations, everything is fine, the annotation is there. When I try my code under JAVA 1.6 everything is fine... Is there a known bug in this java version or do I need to add something

问题 I know how to add validation errors to the model state. I know how to add the validation annotations to my model classes. The problem is that with Database first, I don't want to touch the generated code, because when I regenerate, I will lose my customization. I always try to customize in partials, but you can't add annotation to an existing property in a partial. What is best practice here? 回答1: You need to take advantage of MetadataTypeAttribute Do something like this: Create a new class

问题 I like to know what is the main difference between EJB @EJB and @Resource annotation? In which case we have to go for @EJB and @resource 回答1: Specification states, regarding @EJB: The Bean Provider uses the EJB annotation to annotate a field or setter property method of the bean class as a target for the injection of an EJB reference. The reference may be to a session bean’s business interface or to the local home interface or remote home interface of a session bean or entity bean. regarding

问题 I like to know what is the main difference between EJB @EJB and @Resource annotation? In which case we have to go for @EJB and @resource 回答1: Specification states, regarding @EJB: The Bean Provider uses the EJB annotation to annotate a field or setter property method of the bean class as a target for the injection of an EJB reference. The reference may be to a session bean’s business interface or to the local home interface or remote home interface of a session bean or entity bean. regarding

问题 I am trying to save annotation for password protected pdf. I am able to draw annotation and save it. But as soon as I go back and come again in activity I cannot see my annotation. However strange thing is I can see annotation box there but not the drawn path. It works fine with normal pdf(without password pdf). Any idea how can I save annotation for password protected pdf? Below is the code I am using : private MuPDFCore core; private MuPDFReaderView mDocView; /** * Save's changes to the pdf

问题 I have two annotations from a framework. Often I use those two annotations both on the same field. Thus I'm trying to create a "combined" annotation that contains that both two. But I don't know if it is possible at all: The existing annotations (that I have no control of): @Target({ElementType.PARAMETER, ElementType.METHOD, ElementType.FIELD}) @Retention(RetentionPolicy.RUNTIME) public @interface ApiParam { String name() default ""; } @Target({ElementType.METHOD, ElementType.FIELD})

问题 I have two annotations from a framework. Often I use those two annotations both on the same field. Thus I'm trying to create a "combined" annotation that contains that both two. But I don't know if it is possible at all: The existing annotations (that I have no control of): @Target({ElementType.PARAMETER, ElementType.METHOD, ElementType.FIELD}) @Retention(RetentionPolicy.RUNTIME) public @interface ApiParam { String name() default ""; } @Target({ElementType.METHOD, ElementType.FIELD})

问题 I am using ReloadableResourceBundleMessageSource in my web project, and I inject the class to a servlet, the problem is that I want to inject the class using Spring annotations but it doesn't seem to work? My code is: my.xml <bean id="messageSource" class="org.springframework.context.support.ReloadableResourceBundleMessageSource"> <property name="basenames"> <list> <value>classpath:myList</value> </list> </property> <property name="cacheSeconds" value="1"/> </bean> myServletClass.java

问题 I'm using Gulp to build my main javascript file (app.js) for an AngularJS application. Everything is working fine except for one small thing that is bothering me. I am using ng-annotate to automatically parse my angular js and add dependency injection syntax. So I went from this (manual injection without using ng-annotate): angular.module('base.controllers') .controller('RandomeCtrl', ['$scope', '$routeParams', ..., function($scope, $routeParams, ...) { To this (code that will be modified