oracle.xml.xmldbaccess
Class XMLDBAccess

java.lang.Object
oracle.xml.dbaccess.DBAccess
oracle.xml.xmldbaccess.XMLDBAccess

public class XMLDBAccess

extends DBAccess

This Bean is a simple extension of the DBAccess bean to support the XMLType Functionality that was introduced as a part of Oracle 9i database This bean lets user to create XMLType tables and store XML documents. The XMLDocuments are stored as rows in the database table as an XMLType type. This class also provides methods to list, delete or retrieve XMLtype tables and data. The table is created using the SQL statement CREATE TABLE (FILENAME CHAR( ) UNIQUE, FILEDATA sys.XMLType);

Field Summary

Fields inherited from class oracle.xml.dbaccess.DBAccess

nameSize

Constructor Summary

XMLDBAccess()

Method Summary

boolean	createXMLTypeTable(java.sql.Connection con, java.lang.String tablename) Create an XMLType table
java.sql.Clob	getXMLTypeClob(java.sql.Connection con, java.lang.String tablename, java.lang.String xmlname) Retrieve text file from an XMLType table
java.lang.String	getXMLTypeData(java.sql.Connection con, java.lang.String tablename, java.lang.String xmlname) Retrieve text file from an XMLType table
java.lang.String[]	getXMLTypeTableNames(java.sql.Connection con, java.lang.String tablePrefix) Get all XML tables with names starting with a given string
java.sql.Clob	getXMLTypeXPathCLOB(java.sql.Connection con, java.lang.String tablename, java.lang.String xmlname, java.lang.String xpathexp) Retrieve the Clob data based on the XPATH expression from an XMLType table
java.lang.String	getXMLTypeXPathTextData(java.sql.Connection con, java.lang.String tablename, java.lang.String xmlname, java.lang.String xpathexp) Retrieve the text data based on the XPATH expression from an XMLType table
boolean	insertXMLTypeData(java.sql.Connection con, java.lang.String tablename, java.lang.String xmlname, java.lang.String xmldata) Inserts text file as a row in an XMLType table
boolean	isXMLTypeTable(java.sql.Connection con, java.lang.String tablename) Check if the table is an XMLType table.
boolean	replaceXMLTypeData(java.sql.Connection con, java.lang.String tablename, java.lang.String xmlname, java.lang.String xmldata) Replace text file as a row in an XMLType table

Methods inherited from class oracle.xml.dbaccess.DBAccess

createBLOBTable, createXMLTable, deleteBLOBName, deleteXMLName, dropBLOBTable, dropXMLTable, getBLOBData, getNameSize, getXMLData, getXMLNames, getXMLTableNames, insertBLOBData, insertXMLData, isXMLTable, replaceXMLData, xmlTableExists

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

XMLDBAccess

public XMLDBAccess()

Method Detail

isXMLTypeTable

public boolean isXMLTypeTable(java.sql.Connection con,
                              java.lang.String tablename)
                       throws java.lang.Exception

Check if the table is an XMLType table.

Parameters:

con - - the Connection object

Returns:

true if this is an XMLType table

Throws:

java.lang.Exception

getXMLTypeTableNames

public java.lang.String[] getXMLTypeTableNames(java.sql.Connection con,
                                               java.lang.String tablePrefix)
                                        throws java.lang.Exception

Get all XML tables with names starting with a given string

Parameters:

con - - the Connection object

tablePrefix - - table prefix string

Returns:

- array of all XMLType tables that begin with tablePrefix

Throws:

java.lang.Exception

createXMLTypeTable

public boolean createXMLTypeTable(java.sql.Connection con,
                                  java.lang.String tablename)
                           throws java.lang.Exception

Create an XMLType table

Parameters:

con - - the Connection object

tablename - - the table name

Returns:

true if successful

Throws:

java.lang.Exception

insertXMLTypeData

public boolean insertXMLTypeData(java.sql.Connection con,
                                 java.lang.String tablename,
                                 java.lang.String xmlname,
                                 java.lang.String xmldata)
                          throws java.sql.SQLException,
                                 java.io.IOException,
                                 java.lang.NoClassDefFoundError

Inserts text file as a row in an XMLType table

Parameters:

con - - the Connection object

tablename - - the table name

xmlname - - the file name

xmldata - - string with the file data

Returns:

true if successful

Throws:

java.sql.SQLException

java.io.IOException

java.lang.NoClassDefFoundError

replaceXMLTypeData

public boolean replaceXMLTypeData(java.sql.Connection con,
                                  java.lang.String tablename,
                                  java.lang.String xmlname,
                                  java.lang.String xmldata)
                           throws java.lang.Exception,
                                  java.lang.NoClassDefFoundError

Replace text file as a row in an XMLType table

Parameters:

con - - the Connection object

tablename - - the table name

xmlname - - the file name

xmldata - - string with the file data

Returns:

true if successful

Throws:

java.lang.Exception

java.lang.NoClassDefFoundError

getXMLTypeData

public java.lang.String getXMLTypeData(java.sql.Connection con,
                                       java.lang.String tablename,
                                       java.lang.String xmlname)
                                throws java.sql.SQLException

Retrieve text file from an XMLType table

Parameters:

con - - the Connection object

tablename - - the table name

xmlname - - the file name

Returns:

file as a string

Throws:

java.sql.SQLException

getXMLTypeClob

public java.sql.Clob getXMLTypeClob(java.sql.Connection con,
                                    java.lang.String tablename,
                                    java.lang.String xmlname)
                             throws java.sql.SQLException

Retrieve text file from an XMLType table

Parameters:

con - - the Connection object

tablename - - the table name

xmlname - - the file name

Returns:

file as a Clob

Throws:

java.sql.SQLException

getXMLTypeXPathTextData

public java.lang.String getXMLTypeXPathTextData(java.sql.Connection con,
                                                java.lang.String tablename,
                                                java.lang.String xmlname,
                                                java.lang.String xpathexp)
                                         throws java.sql.SQLException

Retrieve the text data based on the XPATH expression from an XMLType table

Parameters:

con - - the Connection object

tablename - - the table name

xmlname - - the file name

xpathexp - - XPATH expression to search the XML document

Returns:

the data as a string

Throws:

java.sql.SQLException

getXMLTypeXPathCLOB

public java.sql.Clob getXMLTypeXPathCLOB(java.sql.Connection con,
                                         java.lang.String tablename,
                                         java.lang.String xmlname,
                                         java.lang.String xpathexp)
                                  throws java.sql.SQLException

Retrieve the Clob data based on the XPATH expression from an XMLType table

Parameters:

con - - the Connection object

tablename - - the table name

xmlname - - the file name

xpathexp - - XPATH expression to search the XML document

Returns:

the data as a Clob

Throws:

java.sql.SQLException