Classes Converter [closed]

You can create a class that implements the interface Converter , in it we can define how the data will be converted, this way you customize this conversion.

By steps: Create a class that implements the javax.faces.contert.Converter interface and is annotated with @facesConverter . A converter is a class that can transform strings into objetos and objetos into strings , so this class should implement methods getAsObject() and getAsString() ;

The getAsObject() method should convert from String to objeto , in this case you can throw an exception of type ConverterException ;

The getAsString() method should convert from objeto to String .

Answering your main question, when implementing Converter you only need to apply conversion logic to methods.