Sample6

Abstract

This sample show us how to use the ReflexionUtils class in order to charge properties from a Object to a Map and also from a Map to an Object.

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Este ejemplo nos muestra cómo utilizar la clase ReflexionUtils para cargar propiedades desde un Object a un Map y en sentido inverso desde un Map a un Object.

Author.java

:::java

package ar.com.scf.sample06;

public class Author {

  private int birth_year;

  private String name;

  public Author(String name, int birth_year) {
    setName(name);
    setBirth_year(birth_year);
  }

  public int getBirth_year() {
    return birth_year;
  }

  public String getName() {
    return name;
  }

  public void setBirth_year(int birth_year) {
    this.birth_year = birth_year;
  }

  public void setName(String name) {
    this.name = name;
  }

  @Override
  public String toString() {
    return getName();
  }
}

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Book.java

:::java

package ar.com.scf.sample06;

public class Book {

  private Author author;

  private String ISBN;

  private float price;

  private String title;

  public Book(String title, Author author, float price, String ISBN) {
    setTitle(title);
    setAuthor(author);
    setPrice(price);
    setISBN(ISBN);
  }

  public Author getAuthor() {
    return author;
  }

  public String getISBN() {
    return ISBN;
  }

  public float getPrice() {
    return price;
  }

  public String getTitle() {
    return title;
  }

  public void setAuthor(Author author) {
    this.author = author;
  }

  public void setISBN(String iSBN) {
    ISBN = iSBN;
  }

  public void setPrice(float price) {
    this.price = price;
  }

  public void setTitle(String title) {
    this.title = title;
  }

  @Override
  public String toString() {
    return getTitle() + ", " + getAuthor() + " [" + getISBN() + "], $" + getPrice();
  }
}

---

Sample.java

:::java

package ar.com.scf.sample06;

import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;

import ar.com.scf.utils.ReflexionUtils;

public class Sample {

  public static void main(String[] args) throws Exception {
    Author verne = new Author("Jules Gabriel Verne", 1828);
    Book book = new Book("De la Tierra a la Luna", verne, 32.0f, "9788420731940");

    ReflexionUtils util = new ReflexionUtils();
    Map<String, Object> target = new HashMap<String, Object>();

    util.charge(book, target);

    for (Entry<String, Object> entry : target.entrySet())
      System.out.println(entry.getKey() + ": " + entry.getValue());

    System.out.println("---x---");

    Map<String, Object> source = new HashMap<String, Object>(target);
    source.put("Title", "20.000 leguas de viaje submarino");
    source.put("ISBN", "9686769749");

    Book book2 = new Book(null, null, 0, null);
    util.charge(source, book2);
    System.out.println(book2);
  }

}

---

output

:::console

ISBN: 9788420731940
Price: 32.0
Author: Jules Gabriel Verne
Title: De la Tierra a la Luna
---x---
20.000 leguas de viaje submarino, Jules Gabriel Verne [9686769749], $32.0