/*
 * Copyright 2000-2016 Vaadin Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.vaadin.tests.minitutorials.v7a1;

import com.vaadin.server.VaadinRequest;
import com.vaadin.ui.UI;
import com.vaadin.ui.VerticalLayout;
import com.vaadin.v7.data.fieldgroup.BeanFieldGroup;
import com.vaadin.v7.data.fieldgroup.FieldGroup;
import com.vaadin.v7.data.util.BeanItem;

/**
 * Mini tutorial code for
 * https://vaadin.com/wiki/-/wiki/Main/Auto%20generating%20
 * a%20form%20based%20on%20a%20bean%20-%20Vaadin%206%20style%20Form
 *
 * @author Vaadin Ltd
 * @since 7.0.0
 */
public class AutoGeneratingForm extends UI {

    @Override
    protected void init(VaadinRequest request) {
        VerticalLayout layout = new VerticalLayout();
        layout.setMargin(true);
        setContent(layout);

        FieldGroup fieldGroup = new BeanFieldGroup<>(Person.class);

        // We need an item data source before we create the fields to be able to
        // find the properties, otherwise we have to specify them by hand
        fieldGroup.setItemDataSource(
                new BeanItem<>(new Person("John", "Doe", 34)));

        // Loop through the properties, build fields for them and add the fields
        // to this root
        for (Object propertyId : fieldGroup.getUnboundPropertyIds()) {
            layout.addComponent(fieldGroup.buildAndBind(propertyId));
        }
    }

}

class Person {
    private String firstName, lastName;
    private int age;

    // + setters and getters

    public Person(String firstName, String lastName, int age) {
        this.firstName = firstName;
        this.lastName = lastName;
        this.age = age;
    }

    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;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }
}