javabeans

We use Java beans on some projects where I work, this means a lot of handcrafted boilerplate code like this. I'm after an Eclipse plugin, or a way of configuring Eclipse code templates that allows a developer to generate the setters from a simple skeleton class, in a similar fashion to the 'Generate Getters and Setters' does for POJOs. Input public class MyBean { private String value; } Expected output public class MyBean { private final PropertyChangeSupport pcs = new PropertyChangeSupport(this); private String value; public String getValue() { return this.value; } public void setValue(String

Usually JavaPractices.com is a good site with good idea's, but this one troubles me: JavaBeans are bad . The article cites several reasons, mainly that the term JavaBean means "A Java Bean is a reusable software component that can be manipulated visually in a builder tool." not Data storage, violates certain patters, and is more complex. Now I can agree with the last one, but in my eyes JavaBeans in a list makes a lot more sense than nested Maps. The article claims that database mapping frameworks should call constructors, not set* methods, and the object should be immutable. In my mind

When i am creating a spring project I always have problem with XLMNS. what is exactly XMLNS? what are these actually? <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org

If all the objects within the bean implement Serializable interface, will BeanUtils.cloneBean() do a deep copy? kosa No, cloneBean() does shallow copy only. If you want deep copy. You may refer this link which has technique to do deep copy. Use SerializationUtils.clone method from the Apache Commons Lang for the deep copy . It copies the entire class hierarchy. SerializationUtils.clone(object); There is also another java library which supports both shallow cloning and deep cloning. It offers deep cloning without the need to implement Serializable. Here 来源： https://stackoverflow.com/questions

I’m a huge believer in consistency, and hence conventions. However, I’m currently developing a framework in Java where these conventions (specifically the get / set prefix convention) seem to get in the way of readability. For example, some classes will have id and name properties and using o.getId() instead of o.id() seems utterly pointless for a number of reasons: The classes are immutable so there will (generally) be no corresponding setter, there is no chance of confusion, the get in this case conveys no additional semantics, and I use this get -less naming schema quite consistently

I have a classX in my spring application in which I want to be able to find out if all spring beans have been initialized. To do this, I am trying to listen ContextRefreshedEvent. So far I have the following code but I am not sure if this is enough. import org.springframework.context.ApplicationListener; import org.springframework.context.event.ContextRefreshedEvent; public classX implements ApplicationListener<ContextRefreshedEvent> { @Override public void onApplicationEvent(ContextRefreshedEvent event) { //do something if all apps have initialised } } Is this approach correct to find out if