Java5 Document into XMLType

Question

Hi,
I had a look to the example on OTN and I found how to get an XMLType into a Java 5 Document.
I want to do exactly the contrary.
So far, I transform my XML Document into a string
(The XML data come from a file and are parsed with a JAXP DOM Parser, validated with an XSD, and then quite a lot of operations are performed on the document).
Then I create an XMLType using that string, to finally insert it into the database.
I'd like to go faster and to initialize my XMLType directly with the DOM Document
(to avoid any transformation and any additional parsing from Oracle XMLType)
So,
Document ==> XMLType, insert
should be faster than
Document ==> String , String ==> XMLType, insert
Any idea ?
Thanks

Answer 1

create directory object DIR_TEMP on the database pointing to the physical path where your xml files are available.
Note the path should be on the database server and not on the client and also your files should be present on the database server and not client for this to work.
create table xml_table (id number, xml_data xmltype)
CREATE OR REPLACE FUNCTION getClobDocument
( filename  in varchar2,
  charset   in varchar2 default NULL,
  dir       IN VARCHAR2 default 'DIR_TEMP',
) RETURN CLOB deterministic is
  file          bfile := bfilename(dir,filename);
  charContent   CLOB := ' ';
  targetFile    bfile;
  lang_ctx      number := DBMS_LOB.default_lang_ctx;
  charset_id    number := 0;
  src_offset    number := 1 ;
  dst_offset    number := 1 ;
  warning       number;
BEGIN
  IF charset is not null then
      charset_id := NLS_CHARSET_ID(charset);
  end if;
  targetFile := file;
  DBMS_LOB.fileopen(targetFile, DBMS_LOB.file_readonly);
  DBMS_LOB.LOADCLOBFROMFILE(charContent, targetFile,
  DBMS_LOB.getLength(targetFile), src_offset, dst_offset,
  charset_id, lang_ctx,warning);
  DBMS_LOB.fileclose(targetFile);
  return charContent;
end;
insert into xml_table values(1, XMLTYPE(GetClobDocument('purchaseorder.xml')))
/The function GetClobDocument returns the content of the xml file in CLOB format.
Before insert this is converted into XMLTYPE.