Introducing Spring Framework

Chapter 14
Using Dynamic Languages
Often you are required to do some business logic as fast as possible, such as a prototype that needs to work or a quick
security authorization check or calculating some hash. In this chapter, you are going to see how the use of dynamic
languages together with the Spring Framework can help you to do such tasks.
Get More Dynamic
The Spring Framework supports Groovy, JRuby, and BeanShell dynamic languages and you can interact with them
like any other bean defined in the container. Remember the Login interface and Login implementation? Let’s review
them. See Listings 14-1 and 14-2.
Listing 14-1. Login.java
package com.apress.isf.java.service;
public interface Login {
public boolean isAuthorized(String email, String pass);
}
Listing 14-1 shows the Login interface with only one method, isAuthorized, which takes two parameters, the
e-mail and the password. Listing 14-2 shows its implementation.
Listing 14-2. LoginService.java
package com.apress.isf.spring.service;
import com.apress.isf.java.service.Login;
public class LoginService implements Login {
private String username;
private String password;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
195