Using the JavaSourceFactory

Using the JavaSource framework is using a JavaSourceFactory. This class is (directly or indirectly) the single access point to all other classes. We demonstrate the basic use with the following example:

   import java.io.File;

   import javax.xml.parsers.ParserConfigurationException;
   import javax.xml.parsers.SAXParser;
   import javax.xml.parsers.SAXParserFactory;

   import net.sf.jaxme.js.JavaMethod;
   import net.sf.jaxme.js.JavaQName;
   import net.sf.jaxme.js.JavaQNameImpl;
   import net.sf.jaxme.js.JavaSource;
   import net.sf.jaxme.js.JavaSourceFactory;

   public class Test {
      public static void main(String[] args) throws Exception {
         // Create a factory
  	     JavaSourceFactory factory = new JavaSourceFactory();
  	     // Let the factory create a Java source class "com.mycompany.demo.Parser"
		 JavaQName className = JavaQNameImpl.getInstance("com.mycompany.demo", "Parser");
		 JavaSource js = factory.newJavaSource(className, "public");
		 // Add a method "getParser", which instantiates a new SAXParser
		 JavaMethod jm = js.newJavaMethod("getParser", SAXParser.class, "public");
		 jm.setStatic(true);
		 jm.addThrows(ParserConfigurationException.class);
		 jm.addLine(SAXParserFactory.class, " sf = ", SAXParserFactory.class, ".newInstance();");
		 jm.addLine("return sf.newSAXParser();");
		 factory.write(null, factory.getLocation(js));
      }
   }

   import java.io.File;
   import java.io.FileWriter;

   public class Test {
      public static void main(String[] args) throws Exception {
         FileWriter fw = new FileWriter("com/mycompany/demo/Parser.java");
         fw.write("package com.mycompany.demo;\n");
         fw.write("\n");
         fw.write("import javax.xml.parsers.ParserConfigurationException;\n");
         fw.write("import javax.xml.parsers.SAXParser;\n");
         fw.write("import javax.xml.parsers.SAXParserFactory;");
         fw.write("\n");
         fw.write("public class Parser {");
         fw.write("  public SAXParser getParser() throws ParserConfigurationException {\n");
         fw.write("    SAXParserFactory sf = SAXParserFactory.newInstance();");
         fw.write("    return sf.newSAXParser();");
         fw.write("  }");
         fw.write("}");
      }
   }