Latest revision as of 21:15, 1 December 2011

This article requires cleanup and may refer to a legacy version of Resin. Please visit http://www.caucho.com/documentation/ for the most up-to-date documentation.

http://www.caucho.com/resin-3.0/config/init.xtp

[edit] Overview

Resin provides a configuration API to populate application beans from an XML file. Resin's configuration machinery supports Inversion of Control and allows the use of EL expressions.

[edit] Using Resin to parse XML

Resin's configuration API is the easiest method to parse XML.

• Create Java classes mirroring the XML file.
• Call Resin's configuration with an instance of the classes and the XML file.

[edit] Calling the Configuration

import com.caucho.config.*;

...

Config config = new Config();
MovieListing movies = new MovieList();

InputStream is = ...;

config.configure(bean, is);

[edit] Sample XML Parsing

[edit] Sample XML File

<movie-listing>
  <movie director="Jackson" title="LOTR: Fellowship of the Ring"/>
  <movie director="Jackson" title="LOTR: The Two Towers"/>
  <movie director="Jackson" title="LOTR: Return of the King"/>

  <movie director="Gilliam" title="Monty Python's Holy Grail"/>
  <movie director="Gilliam" title="Brazil"/>
</movie-listing>

To model the XML file, you'll use a Movie class and a MovieListener class:

[edit] Movie.java

public class Movie {
  private String _director;
  private String _title;

  public void setDirector(String director)
  {
    _director = director;
  }

  public void setTitle(String title)
  {
    _title = title;
  }
}

The movie listing encapsulates a list of movies

[edit] MovieListing.java

public class MovieListing {
  private ArrayList _movies = new ArrayList();

  public void addMovie(Movie movie)
  {
    _movies.add(movie);
  }
}