package com.vaadin.tests.minitutorials.v7a1;
import java.util.Locale;
import com.vaadin.data.util.converter.Converter;
import com.vaadin.data.util.converter.Converter.ConversionException;
import com.vaadin.server.VaadinRequest;
import com.vaadin.tests.components.AbstractTestUI;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Button.ClickListener;
import com.vaadin.ui.Notification;
import com.vaadin.ui.TextField;
public class StringMyTypeConverter extends AbstractTestUI {
@Override
protected void setup(VaadinRequest request) {
Name name = new Name("Rudolph", "Reindeer");
final TextField textField = new TextField("Name");
textField.setConverter(new StringToNameConverter());
textField.setConvertedValue(name);
addComponent(textField);
addComponent(new Button("Submit value", new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
try {
Name name = (Name) textField.getConvertedValue();
Notification.show("First name: " + name.getFirstName()
+ "<br />Last name: " + name.getLastName());
} catch (ConversionException e) {
e.printStackTrace();
Notification.show(e.getCause().getMessage());
}
}
}));
}
@Override
protected String getTestDescription() {
return "Mini tutorial for https://vaadin.com/wiki/-/wiki/Main/Creating%20your%20own%20converter%20for%20String%20-%20MyType%20conversion";
}
@Override
protected Integer getTicketNumber() {
return null;
}
}
class StringToNameConverter implements Converter<String, Name> {
@Override
public Name convertToModel(String text, Class<? extends Name> targetType,
Locale locale) throws ConversionException {
if (text == null) {
return null;
}
String[] parts = text.split(" ");
if (parts.length != 2) {
throw new ConversionException("Can not convert text to a name: "
+ text);
}
return new Name(parts[0], parts[1]);
}
@Override
public String convertToPresentation(Name name,
Class<? extends String> targetType, Locale locale)
throws ConversionException {
if (name == null) {
return null;
} else {
return name.getFirstName() + " " + name.getLastName();
}
}
@Override
public Class<Name> getModelType() {
return Name.class;
}
@Override
public Class<String> getPresentationType() {
return String.class;
}
}
class Name {
private String firstName;
private String lastName;
public Name(String firstName, String lastName) {
this.firstName = firstName;
this.lastName = lastName;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
}