annotations

问题 This question already has answers here : Required Attribute on Generic List Property (4 answers) Closed 7 years ago . I have this piece of code: [Required] public List<string> myStringList { get; set; } Unfortunatelly, it doesn't work, tha validator totally ignores it. Besides, this works fine: [Required] public string myString { get; set; } and DateTimes work fine as well. Obviously, the problem doesn't lie on my validator, but on the annotation. So the question is, how should I set the Data

问题 I am able to add and remove a page header using a text watermark annotation using itext 7 and C#. I am able to see and print the PDF via Adobe Acrobat Reader. @remy However, I am unable to use Adobe Acrobat Pro DC to remove the pager header. When I do a search and replace, it says text is un-editable. The PDF files are located here: PDF Files Original, With Watermark Step2 and WaterMark Removed Step3 public static string CompanyName= "ACME77"; public static string AnnotName = CompanyName +

问题 I get this exception from tomcat upon startup of the war file: Unable to process Jar entry [META-INF/versions/9/module-info.class] from Jar [jar:file:/C:/tomcat/apache-tomcat-7.0.61/webapps/monitormonitor/WEB-INF/lib/log4j-api-2.11.1.jar!/] for annotations org.apache.tomcat.util.bcel.classfile.ClassFormatException: Invalid byte tag in constant pool: 19 at org.apache.tomcat.util.bcel.classfile.Constant.readConstant(Constant.java:97) I tried to switch the log4j to an older version in the pom

问题 I am trying to make annotation processor in plain java (not android api), but anytime I run my main function, processor is supposed to stop build process because of error, but it doesn't. My project structure is: Root |-> core (all features including annotations) |-> annotation-processors (just annotation processor with set-up META-INF and processor class) |-> example (main void with class that is annotated with @Disable - annotation declared in core, this should stop compiler) Annotation

问题 I am trying to make annotation processor in plain java (not android api), but anytime I run my main function, processor is supposed to stop build process because of error, but it doesn't. My project structure is: Root |-> core (all features including annotations) |-> annotation-processors (just annotation processor with set-up META-INF and processor class) |-> example (main void with class that is annotated with @Disable - annotation declared in core, this should stop compiler) Annotation

问题 My question is related to this question. I want "2014" in the 4-year facet. I tried to repeat but my code doesn't give what I want. Annotating text on individual facet in ggplot2 This is my data structure(list(Rot = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L), .Label = c("2-year", "3-year", "4-year"), class = "factor"), Rot.Herb = structure(c(3L, 3L, 4L, 4L, 13L, 13L, 14L, 14L, 5L,

问题 We are using the @Schedule EJB annotation to start a scheduled job do a delta SOLR import every x seconds. Of course we want to have as less timeshift in indexing as possible. Currently I try to do the delta every 5 seconds. So my question is: Can I make sure the job is only called once? So let's say the indexing is lasting longer than 5 seconds, will the next schedules call wait until the previous is coming back? 回答1: Yes. You can make the bean a @Singleton and use @Lock(LockType.Write) to

问题 We are using the @Schedule EJB annotation to start a scheduled job do a delta SOLR import every x seconds. Of course we want to have as less timeshift in indexing as possible. Currently I try to do the delta every 5 seconds. So my question is: Can I make sure the job is only called once? So let's say the indexing is lasting longer than 5 seconds, will the next schedules call wait until the previous is coming back? 回答1: Yes. You can make the bean a @Singleton and use @Lock(LockType.Write) to

问题 Is there a way to create a custom, or use an existing, annotation to trigger code to run when the annotated method is called? Preferably, I would like to use Spring libraries. For example: @SendEmail("templateName") public void doSomething() { log.info("Something is happening"); } public void sendEmail(String templateName) { // This method is called everytime doSomething() is called log.info("Sending email using template " + templateName); } 回答1: @Component @Aspect public class Mail { @After(

问题 Is there a way to create a custom, or use an existing, annotation to trigger code to run when the annotated method is called? Preferably, I would like to use Spring libraries. For example: @SendEmail("templateName") public void doSomething() { log.info("Something is happening"); } public void sendEmail(String templateName) { // This method is called everytime doSomething() is called log.info("Sending email using template " + templateName); } 回答1: @Component @Aspect public class Mail { @After(