DTO is an abbreviation for Data Transfer Object, so it is used to transfer the data between classes and modules of your application. DTO should only contain private fields for your data, getters, setters, and constructors. DTO is not recommended to add business logic methods to such classes, but it is OK to add some … Read more
They often just represents real world data. Here’s a simple example of a Javabean: public class User implements java.io.Serializable { // Properties. private Long id; private String name; private Date birthdate; // Getters. public Long getId() { return id; } public String getName() { return name; } public Date getBirthdate() { return birthdate; } // … Read more
Suppose you have boolean active; Accessors method would be public boolean isActive(){return this.active;} public void setActive(boolean active){this.active = active;} See Also Java Programming/Java Beans Code Conventions for the Java Programming Language
JavaBeans A JavaBean is a class that follows the JavaBeans conventions as defined by Sun. Wikipedia has a pretty good summary of what JavaBeans are: JavaBeans are reusable software components for Java that can be manipulated visually in a builder tool. Practically, they are classes written in the Java programming language conforming to a particular … Read more
A JavaBean is just a standard. It is a regular Java class, except it follows certain conventions: All properties are private (use getters/setters) A public no-argument constructor Implements Serializable. That’s it. It’s just a convention. Lots of libraries depend on it though. With respect to Serializable, from the API documentation: Serializability of a class is … Read more