public OperationFactory() 
{
    modules = new ArrayList();
}

Default constructor.

 public boolean canHandleContent(String contentType) 
{
    for (int i = 0; i <  modules.size(); i++)
    {
      final OperationModule mod = (OperationModule) modules.get(i);
      if (mod.canHandleContent(contentType))
      {
        return true;
      }
    }
    return false;
}

Tests, whether this implementation would be able to handle the given content type.

 public  void createOperations(PhysicalOperationsCollector col,
    Element e,
    Content value,
    Rectangle2D bounds) throws OutputTargetException 
{
    final String contentType = e.getContentType();
    for (int i = 0; i <  modules.size(); i++)
    {
      final OperationModule mod = (OperationModule) modules.get(i);
      if (mod.canHandleContent(contentType))
      {
        mod.createOperations(col, e, value, bounds);
        return;
      }
    }
    throw new OutputTargetException("No operation module for " + contentType);
}

Creates the required Operations to output the content on an OutputTarget.

 public OperationModule getModule(String content) throws OutputTargetException 
{
    for (int i = 0; i <  modules.size(); i++)
    {
      final OperationModule mod = (OperationModule) modules.get(i);
      if (mod.canHandleContent(content))
      {
        return mod;
      }
    }
    throw new OutputTargetException("No operation module for " + content);
}

Returns the first module in the factory that can handle the specified content. ToDo: Add better support for specific and generic content handler. Specific handler should be always preferred to more generic handlers.

 public  void registerModule(OperationModule module) 
{
    modules.add(0, module);
}

Registered a module with the factory.

 public  void unregisterModule(OperationModule module) 
{
    modules.remove(module);
}

Deregisters a module with the factory.