| Zend_Search_Lucene_Document | A Document is a set of fields |
| Zend_Search_Lucene_Document_Docx | Docx document |
| Zend_Search_Lucene_Document_Html | HTML document |
| Zend_Search_Lucene_Document_OpenXml | OpenXML document |
| Zend_Search_Lucene_Document_Pptx | Pptx document |
| Zend_Search_Lucene_Document_Xlsx | Xlsx document |
| Zend_Search_Lucene_Field | A field is a section of a Document |