Bootstrapping Example

• getDOMImplementation() returns a DOMImplementation object that supports the features given in the argument, or null if no such implementation can be found.

• Request a DOMImplementation that supports XML DOM Level 1, any version of the traversal module, and DOM Level 2 events:

  try {
    DOMImplementation impl = DOMImplementationRegistry
     .getDOMImplementation("XML 1.0 Traversal Events 2.0");
    if (impl != null) { 
      DocumentType svgDOCTYPE = impl.createDocumentType("svg", 
       "-//W3C//DTD SVG 1.0//EN", 
       "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd");
      Document svgDoc = impl.createDocument(
       "http://www.w3.org/2000/svg", "svg", svgDOCTYPE
      );  
      // work with the document...
    }
  }
  catch (Exception ex) { 
    System.out.println(ex); 
  }

• Be sure to check whether the implementation returned is null before using it. Many installations may not be able to support all the features you ask for.

• DOMImplementationRegistry searches for DOMImplementation classes by reading the value of the org.w3c.dom.DOMImplementationSourceList Java system property. This property should contain a white space separated list of DOMImplementationSource