annotations
Using java annotation to inject logger dependency
You can use the BeanPostProcessor interface, which is called by the ApplicationContext for all created beans, so you have the chance to fill the appropriate properties. I created a simple implementation, which does that: import java.lang.reflect.Field; import java.util.List; import net.vidageek.mirror.dsl.Mirror; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.BeansException; import org.springframework.beans.factory.config.BeanPostProcessor; import org.springframework.stereotype.Component; @Component public class LoggerPostProcessor implements … Read more
How to annotate a list using @XmlElement?
You need to leverage @XmlElementWrapper and @XmlElement. Java Model Content import java.util.List; import javax.xml.bind.annotation.*; @XmlRootElement public class Content { private List<String> keywords; public Content() {} @XmlElementWrapper @XmlElement(name=”keyword”) public List<String> getKeywords() { return keywords; } public void setKeywords(List<String> keywords) { this.keywords = keywords; } } Demo Code Demo import java.util.*; import javax.xml.bind.*; public class Demo { … Read more
hibernate column name issues
Try putting this in application.properties spring.jpa.hibernate.naming.physical-strategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl
How annotate a function that takes another function as parameter?
You can use the typing module for Callable annotations. The Callable annotation is supplied a list of argument types and a return type: from typing import Callable def func_b(func: Callable[[int], int]) -> int: return func(3)
Writing a java annotation for timing method call
AFAIK, Tomasz is right in saying that this can’t be done using annotations. I think the confusion stems from the fact that Python decorators and Java annotations share the same syntax but are completely different in terms of the behavior they offer! Annotations are metadata attached to your class/methods/fields. This blog post addresses the point … Read more
Java Annotations values provided in dynamic manner
There is no way to dynamically generate a string used in an annotation. The compiler evaluates annotation metadata for RetentionPolicy.RUNTIME annotations at compile time, but GENERIC_GENERATED_NAME isn’t known until runtime. And you can’t use generated values for annotations that are RetentionPolicy.SOURCE because they are discarded after compile time, so those generated values would never be … Read more
What is the purpose of using @field:SerializedName annotation instead of @SerializedName?
TL;DR: The field: part is known as a “use-site target”, and makes it clear that the annotation is applied to the backing field of the Kotlin property. It is not strictly necessary in this case, though it can make the code more readable. Explanation To simplify, let’s say you have: data class Repo( @field:SerializedName(“name”) var … Read more
how to specify a bean as non lazy with annotations
In spring 3.0 there is an annotation: @Lazy(false). But note that beans are eager by default.