Package com.softsynth.jmsl.util

Class SimpleXMLLoader

java.lang.Object
com.softsynth.jmsl.util.SimpleXMLLoader
All Implemented Interfaces:
XMLListener
Direct Known Subclasses:
InstrumentXMLLoader
public class SimpleXMLLoader
extends java.lang.Object
implements XMLListener
Read in an XML file that describes an Object, and recreate the object with values found for all matching get/set methods that handle primitive types (String, boolean, int, double), Example, Class com.widgits.City below has matching get/set methods for popuation 
 package com.widgits;
 
 public class City {
        int population;
 
        public City() {
        }
 
        public void setPopulation(int p) {
                this.population = p;
        }
 
        public int getPopulation() {
                return population;
        }
 
        public static void main(String args[]) {
                try {
                        // create a new City and write it out as an XML file
                        City myCity = new City();
                        myCity.setPopulation(10000);
                        java.io.PrintWriter pout = new java.io.PrintWriter(new java.io.FileOutputStream("city.xml"));
                        (new com.softsynth.jmsl.score.util.SimpleXMLSaver(myCity, "SomeXMLTag")).writeXML(pout);
                        pout.close();
 
                        // now read it back in to create a new object with same population
                        // as the saved one
                        com.softsynth.jmsl.score.util.SimpleXMLLoader loader = new com.softsynth.jmsl.score.util.SimpleXMLLoader();
                        City loadedCity = (City) loader.loadXML("city.xml");
                        System.out.println("population=" + loadedCity.getPopulation());
                } catch (java.io.IOException e) {
                        System.out.println("ERROR in main: " + e);
                }
 
        }
 
 }
The XML file written in main() looks like this: 
 
   (openbracket)SomeXMLTag CLASSNAME="com.widgits.City" Population="10000" (closebracket)
   (openbracket)/SomeXMLTag (closebracket)
Author:
Nick Didkovsky, (c) 2001 Nick Didkovsky all rights reserved

  • Constructor Summary

    Constructors
    Constructor Description
    SimpleXMLLoader()  

  • Method Summary

    Modifier and Type Method Description
    void beginElement​(java.lang.String tag, java.util.Hashtable attributes, boolean ifEmpty)
    Handles the start of an element.
    void endElement​(java.lang.String tag)
    Handles the end of an element.
    void foundContent​(java.lang.String content)
    Handles the content of an element.
    java.lang.Object loadXML​(java.io.InputStream stream)  
    java.lang.Object loadXML​(java.lang.String fileName)  
    static void main​(java.lang.String[] args)  
    void setObjectListener​(NewXMLObjectListener listener)  

    Methods inherited from class java.lang.Object

    equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • SimpleXMLLoader

      public SimpleXMLLoader()

  • Method Details

    • loadXML

      public final java.lang.Object loadXML​(java.io.InputStream stream) throws java.io.IOException
      Throws:
      java.io.IOException

    • loadXML

      public java.lang.Object loadXML​(java.lang.String fileName) throws java.io.IOException
      Throws:
      java.io.IOException

    • setObjectListener

      public void setObjectListener​(NewXMLObjectListener listener)

    • beginElement

      public void beginElement​(java.lang.String tag, java.util.Hashtable attributes, boolean ifEmpty) throws XMLLoaderException
      Description copied from interface: XMLListener
      Handles the start of an element. The flag ifEmpty if there is no content or endTag.
      Specified by:
      beginElement in interface XMLListener
      Throws:
      XMLLoaderException

    • foundContent

      public void foundContent​(java.lang.String content)
      Description copied from interface: XMLListener
      Handles the content of an element.
      Specified by:
      foundContent in interface XMLListener

    • endElement

      public void endElement​(java.lang.String tag)
      Description copied from interface: XMLListener
      Handles the end of an element.
      Specified by:
      endElement in interface XMLListener

    • main

      public static void main​(java.lang.String[] args)