org.cruxframework.crux.core.client.bean

Interface BeanComparator<A>

Type Parameters:

A - The type of the beans to be compared by the comparator interface.

public interface BeanComparator<A>

An utility interface to allow comparation between two objects.

You can define comparators by extending this interface.

Imagine you have the following java bean class defined as:

 public class Person {
    private String name;
    private int age;
    
    public String getName(){return name;}
    public void setName(String name){this.name = name;}
    public int getAge(){return age;}
    public void setAge(int age){this.age = age;}
 }
 

You can define the following interface to make comparation between two objects of the given class, considering its property values:

 public interface PersonComparator extends BeanComparator {}
 

To use the comparator, just call GWT.create on the given interface, or inject it on your class.

 public class MyController {
    @Inject
    private PersonComparator comparator;
    
    @Expose
    public void myMethod() {
       // read two objects...
       if(comparator.equals(person1, person2)) {
           // ...
       }
    }
 }
 

Author:

Thiago da Rosa de Bustamante

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(A a1, A a2) Compare two objects, considering the value of each property, that follow the java bean notation.

Method Detail

equals

boolean equals(A a1,
             A a2)

Compare two objects, considering the value of each property, that follow the java bean notation.

Parameters:

a1 - object1

a2 - object2

Returns:

true if all properties have the same value on the two objects