XML Indexer

Introduction

The XMLIndexer factory Service allow to create a GenericXMLIndexerService and a MetadataXMLIndexerService. The GenericXMLIndexerService is not implemented yet. A MetadataXMLIndexer operate over a collection of homogeneus XML documents bound to a specific MetadataCollection, this indexer can be populated, updated, recreated and queried.

Implementation Overview

XMLIndexer consist of two parts:

• MetadataXMLIndexer
  MetadataXMLIndexer provides the functionalities to retrieve, update, store MetadataElements into Metadata Collections.
  The Service expose the following operations:
  
  • AddElements(Documents[]) --> void
    This operation take a list of Documents and adds them to the current collection. A Document is a pair of id and a String representation of the XMLDocument. This operation can be used to update elements already stored given the same ids.