Merge upstream branch

4 files changed, 175 insertions, 180 deletions

diff --git a/system/database/drivers/oci8/oci8_driver.php b/system/database/drivers/oci8/oci8_driver.php
index 070d58a34..3bc8c114c 100644
--- a/system/database/drivers/oci8/oci8_driver.php
+++ b/system/database/drivers/oci8/oci8_driver.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -25,8 +25,6 @@
  * @filesource
  */
 
-// ------------------------------------------------------------------------
-
 /**
  * oci8 Database Adapter Class
  *
@@ -50,46 +48,125 @@
  * @author	  Kelly McArdle
  *
  */
-
 class CI_DB_oci8_driver extends CI_DB {
 
-	var $dbdriver = 'oci8';
+	public $dbdriver = 'oci8';
 
 	// The character used for excaping
-	var $_escape_char = '"';
+	protected $_escape_char = '"';
 
 	// clause and character used for LIKE escape sequences
-	var $_like_escape_str = " escape '%s' ";
-	var $_like_escape_chr = '!';
+	protected $_like_escape_str = " ESCAPE '%s' ";
+	protected $_like_escape_chr = '!';
 
 	/**
 	 * The syntax to count rows is slightly different across different
 	 * database engines, so this string appears in each driver and is
 	 * used for the count_all() and count_all_results() functions.
 	 */
-	var $_count_string = "SELECT COUNT(1) AS ";
-	var $_random_keyword = ' ASC'; // not currently supported
+	protected $_count_string = 'SELECT COUNT(1) AS ';
+	protected $_random_keyword = ' ASC'; // not currently supported
 
 	// Set "auto commit" by default
-	var $_commit = OCI_COMMIT_ON_SUCCESS;
+	protected $_commit = OCI_COMMIT_ON_SUCCESS;
 
 	// need to track statement id and cursor id
-	var $stmt_id;
-	var $curs_id;
+	public $stmt_id;
+	public $curs_id;
 
 	// if we use a limit, we will add a field that will
 	// throw off num_fields later
-	var $limit_used;
+	public $limit_used;
+
+	public function __construct($params)
+	{
+		parent::__construct($params);
+
+		$valid_dsns = array(
+					'tns'	=> '/^\(DESCRIPTION=(\(.+\)){2,}\)$/', // TNS
+					// Easy Connect string (Oracle 10g+)
+					'ec'	=> '/^(\/\/)?[a-z0-9.:_-]+(:[1-9][0-9]{0,4})?(\/[a-z0-9$_]+)?(:[^\/])?(\/[a-z0-9$_]+)?$/i',
+					'in'	=> '/^[a-z0-9$_]+$/i' // Instance name (defined in tnsnames.ora)
+				);
+
+		/* Space characters don't have any effect when actually
+		 * connecting, but can be a hassle while validating the DSN.
+		 */
+		$this->dsn = str_replace(array("\n", "\r", "\t", ' '), '', $this->dsn);
+
+		if ($this->dsn !== '')
+		{
+			foreach ($valid_dsns as $regexp)
+			{
+				if (preg_match($regexp, $this->dsn))
+				{
+					return;
+				}
+			}
+		}
+
+		// Legacy support for TNS in the hostname configuration field
+		$this->hostname = str_replace(array("\n", "\r", "\t", ' '), '', $this->hostname);
+		if (preg_match($valid_dsns['tns'], $this->hostname))
+		{
+			$this->dsn = $this->hostname;
+			return;
+		}
+		elseif ($this->hostname !== '' && strpos($this->hostname, '/') === FALSE && strpos($this->hostname, ':') === FALSE
+			&& (( ! empty($this->port) && ctype_digit($this->port)) OR $this->database !== ''))
+		{
+			/* If the hostname field isn't empty, doesn't contain
+			 * ':' and/or '/' and if port and/or database aren't
+			 * empty, then the hostname field is most likely indeed
+			 * just a hostname. Therefore we'll try and build an
+			 * Easy Connect string from these 3 settings, assuming
+			 * that the database field is a service name.
+			 */
+			$this->dsn = $this->hostname
+					.(( ! empty($this->port) && ctype_digit($this->port)) ? ':'.$this->port : '')
+					.($this->database !== '' ? '/'.ltrim($this->database, '/') : '');
+
+			if (preg_match($valid_dsns['ec'], $this->dsn))
+			{
+				return;
+			}
+		}
+
+		/* At this point, we can only try and validate the hostname and
+		 * database fields separately as DSNs.
+		 */
+		if (preg_match($valid_dsns['ec'], $this->hostname) OR preg_match($valid_dsns['in'], $this->hostname))
+		{
+			$this->dsn = $this->hostname;
+			return;
+		}
+
+		$this->database = str_replace(array("\n", "\r", "\t", ' '), '', $this->database);
+		foreach ($valid_dsns as $regexp)
+		{
+			if (preg_match($regexp, $this->database))
+			{
+				return;
+			}
+		}
+
+		/* Well - OK, an empty string should work as well.
+		 * PHP will try to use environment variables to
+		 * determine which Oracle instance to connect to.
+		 */
+		$this->dsn = '';
+	}
 
 	/**
 	 * Non-persistent database connection
 	 *
-	 * @access  private called by the base class
-	 * @return  resource
+	 * @return	resource
 	 */
 	public function db_connect()
 	{
-		return @oci_connect($this->username, $this->password, $this->hostname, $this->char_set);
+		return ( ! empty($this->char_set))
+			? @oci_connect($this->username, $this->password, $this->dsn, $this->char_set)
+			: @oci_connect($this->username, $this->password, $this->dsn);
 	}
 
 	// --------------------------------------------------------------------
@@ -97,29 +174,13 @@ class CI_DB_oci8_driver extends CI_DB {
 	/**
 	 * Persistent database connection
 	 *
-	 * @access  private called by the base class
-	 * @return  resource
+	 * @return	resource
 	 */
 	public function db_pconnect()
 	{
-		return @oci_pconnect($this->username, $this->password, $this->hostname, $this->char_set);
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * Reconnect
-	 *
-	 * Keep / reestablish the db connection if no queries have been
-	 * sent for a length of time exceeding the server's idle timeout
-	 *
-	 * @access	public
-	 * @return	void
-	 */
-	public function reconnect()
-	{
-		// not implemented in oracle
-		return;
+		return ( ! empty($this->char_set))
+			? @oci_pconnect($this->username, $this->password, $this->dsn, $this->char_set)
+			: @oci_pconnect($this->username, $this->password, $this->dsn);
 	}
 
 	// --------------------------------------------------------------------
@@ -127,8 +188,7 @@ class CI_DB_oci8_driver extends CI_DB {
 	/**
 	 * Select the database
 	 *
-	 * @access  private called by the base class
-	 * @return  resource
+	 * @return	resource
 	 */
 	public function db_select()
 	{
@@ -155,9 +215,8 @@ class CI_DB_oci8_driver extends CI_DB {
 	/**
 	 * Execute the query
 	 *
-	 * @access  protected  called by the base class
-	 * @param   string  an SQL query
-	 * @return  resource
+	 * @param	string	an SQL query
+	 * @return	resource
 	 */
 	protected function _execute($sql)
 	{
@@ -172,41 +231,23 @@ class CI_DB_oci8_driver extends CI_DB {
 	/**
 	 * Generate a statement ID
 	 *
-	 * @access  private
-	 * @param   string  an SQL query
-	 * @return  none
+	 * @param	string	an SQL query
+	 * @return	void
 	 */
-	private function _set_stmt_id($sql)
+	protected function _set_stmt_id($sql)
 	{
 		if ( ! is_resource($this->stmt_id))
 		{
-			$this->stmt_id = oci_parse($this->conn_id, $this->_prep_query($sql));
+			$this->stmt_id = oci_parse($this->conn_id, $sql);
 		}
 	}
 
 	// --------------------------------------------------------------------
 
 	/**
-	 * Prep the query
+	 * Get cursor. Returns a cursor from the database
 	 *
-	 * If needed, each database adapter can prep the query string
-	 *
-	 * @access  private called by execute()
-	 * @param   string  an SQL query
-	 * @return  string
-	 */
-	private function _prep_query($sql)
-	{
-		return $sql;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	 * getCursor.  Returns a cursor from the datbase
-	 *
-	 * @access  public
-	 * @return  cursor id
+	 * @return	cursor id
 	 */
 	public function get_cursor()
 	{
@@ -219,11 +260,10 @@ class CI_DB_oci8_driver extends CI_DB {
 	/**
 	 * Stored Procedure.  Executes a stored procedure
 	 *
-	 * @access  public
-	 * @param   package	 package stored procedure is in
-	 * @param   procedure   stored procedure to execute
-	 * @param   params	  array of parameters
-	 * @return  array
+	 * @param	string	package stored procedure is in
+	 * @param	string	stored procedure to execute
+	 * @param	array	parameters
+	 * @return	object
 	 *
 	 * params array keys
 	 *
@@ -272,10 +312,9 @@ class CI_DB_oci8_driver extends CI_DB {
 	/**
 	 * Bind parameters
 	 *
-	 * @access  private
-	 * @return  none
+	 * @return	void
 	 */
-	private function _bind_params($params)
+	protected function _bind_params($params)
 	{
 		if ( ! is_array($params) OR ! is_resource($this->stmt_id))
 		{
@@ -301,7 +340,6 @@ class CI_DB_oci8_driver extends CI_DB {
 	/**
 	 * Begin Transaction
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function trans_begin($test_mode = FALSE)
@@ -331,7 +369,6 @@ class CI_DB_oci8_driver extends CI_DB {
 	/**
 	 * Commit Transaction
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function trans_commit()
@@ -357,7 +394,6 @@ class CI_DB_oci8_driver extends CI_DB {
 	/**
 	 * Rollback Transaction
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
 	public function trans_rollback()
@@ -417,8 +453,7 @@ class CI_DB_oci8_driver extends CI_DB {
 	/**
 	 * Affected Rows
 	 *
-	 * @access  public
-	 * @return  integer
+	 * @return	int
 	 */
 	public function affected_rows()
 	{
@@ -430,8 +465,7 @@ class CI_DB_oci8_driver extends CI_DB {
 	/**
 	 * Insert ID
 	 *
-	 * @access  public
-	 * @return  integer
+	 * @return	int
 	 */
 	public function insert_id()
 	{
@@ -447,9 +481,8 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * Generates a platform-specific query string that counts all records in
 	 * the specified database
 	 *
-	 * @access  public
-	 * @param   string
-	 * @return  string
+	 * @param	string
+	 * @return	string
 	 */
 	public function count_all($table = '')
 	{
@@ -476,8 +509,7 @@ class CI_DB_oci8_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific query string so that the table names can be fetched
 	 *
-	 * @access	protected
-	 * @param	boolean
+	 * @param	bool
 	 * @return	string
 	 */
 	protected function _list_tables($prefix_limit = FALSE)
@@ -499,9 +531,8 @@ class CI_DB_oci8_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific query string so that the column names can be fetched
 	 *
-	 * @access  protected
-	 * @param   string  the table name
-	 * @return  string
+	 * @param	string	the table name
+	 * @return	string
 	 */
 	protected function _list_columns($table = '')
 	{
@@ -515,9 +546,8 @@ class CI_DB_oci8_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific query so that the column data can be retrieved
 	 *
-	 * @access  public
-	 * @param   string  the table name
-	 * @return  object
+	 * @param	string	the table name
+	 * @return	string
 	 */
 	protected function _field_data($table)
 	{
@@ -562,11 +592,10 @@ class CI_DB_oci8_driver extends CI_DB {
 	 *
 	 * This function escapes column and table names
 	 *
-	 * @access	protected
 	 * @param	string
 	 * @return	string
 	 */
-	protected function _escape_identifiers($item)
+	public function _escape_identifiers($item)
 	{
 		if ($this->_escape_char == '')
 		{
@@ -605,9 +634,8 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * This function implicitly groups FROM tables so there is no confusion
 	 * about operator precedence in harmony with SQL standards
 	 *
-	 * @access	protected
-	 * @param	type
-	 * @return	type
+	 * @param	array
+	 * @return	string
 	 */
 	protected function _from_tables($tables)
 	{
@@ -626,11 +654,10 @@ class CI_DB_oci8_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific insert string from the supplied data
 	 *
-	 * @access  public
-	 * @param   string  the table name
-	 * @param   array   the insert keys
-	 * @param   array   the insert values
-	 * @return  string
+	 * @param	string	the table name
+	 * @param	array	the insert keys
+	 * @param	array	the insert values
+	 * @return	string
 	 */
 	protected function _insert($table, $keys, $values)
 	{
@@ -644,10 +671,10 @@ class CI_DB_oci8_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific insert string from the supplied data
 	 *
-	 * @param	string  the table name
-	 * @param	array   the insert keys
-	 * @param 	array   the insert values
-	 * @return 	string
+	 * @param	string	the table name
+	 * @param	array	the insert keys
+	 * @param 	array	the insert values
+	 * @return	string
 	 */
 	protected function _insert_batch($table, $keys, $values)
 	{
@@ -671,7 +698,6 @@ class CI_DB_oci8_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific update string from the supplied data
 	 *
-	 * @access	protected
 	 * @param	string	the table name
 	 * @param	array	the update data
 	 * @param	array	the where clause
@@ -708,7 +734,6 @@ class CI_DB_oci8_driver extends CI_DB {
 	 * If the database does not support the truncate() command
 	 * This function maps to "DELETE FROM table"
 	 *
-	 * @access	protected
 	 * @param	string	the table name
 	 * @return	string
 	 */
@@ -724,7 +749,6 @@ class CI_DB_oci8_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific delete string from the supplied data
 	 *
-	 * @access	protected
 	 * @param	string	the table name
 	 * @param	array	the where clause
 	 * @param	string	the limit clause
@@ -758,11 +782,10 @@ class CI_DB_oci8_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific LIMIT clause
 	 *
-	 * @access  protected
-	 * @param   string  the sql query string
-	 * @param   integer the number of rows to limit the query to
-	 * @param   integer the offset value
-	 * @return  string
+	 * @param	string	the sql query string
+	 * @param	int	the number of rows to limit the query to
+	 * @param	int	the offset value
+	 * @return	string
 	 */
 	protected function _limit($sql, $limit, $offset)
 	{
@@ -785,19 +808,15 @@ class CI_DB_oci8_driver extends CI_DB {
 	/**
 	 * Close DB Connection
 	 *
-	 * @access  protected
-	 * @param   resource
-	 * @return  void
+	 * @param	resource
+	 * @return	void
 	 */
 	protected function _close($conn_id)
 	{
 		@oci_close($conn_id);
 	}
 
-
 }
 
-
-
 /* End of file oci8_driver.php */
-/* Location: ./system/database/drivers/oci8/oci8_driver.php */
+/* Location: ./system/database/drivers/oci8/oci8_driver.php */
\ No newline at end of file
diff --git a/system/database/drivers/oci8/oci8_forge.php b/system/database/drivers/oci8/oci8_forge.php
index 7fcc8094d..8285a29d2 100644
--- a/system/database/drivers/oci8/oci8_forge.php
+++ b/system/database/drivers/oci8/oci8_forge.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -25,8 +25,6 @@
  * @filesource
  */
 
-// ------------------------------------------------------------------------
-
 /**
  * Oracle Forge Class
  *
@@ -39,11 +37,10 @@ class CI_DB_oci8_forge extends CI_DB_forge {
 	/**
 	 * Create database
 	 *
-	 * @access	public
 	 * @param	string	the database name
 	 * @return	bool
 	 */
-	function _create_database($name)
+	public function _create_database($name)
 	{
 		return FALSE;
 	}
@@ -53,11 +50,10 @@ class CI_DB_oci8_forge extends CI_DB_forge {
 	/**
 	 * Drop database
 	 *
-	 * @access	private
 	 * @param	string	the database name
 	 * @return	bool
 	 */
-	function _drop_database($name)
+	public function _drop_database($name)
 	{
 		return FALSE;
 	}
@@ -144,10 +140,9 @@ class CI_DB_oci8_forge extends CI_DB_forge {
 	/**
 	 * Drop Table
 	 *
-	 * @access	private
 	 * @return	bool
 	 */
-	function _drop_table($table)
+	public function _drop_table($table)
 	{
 		return FALSE;
 	}
@@ -160,17 +155,16 @@ class CI_DB_oci8_forge extends CI_DB_forge {
 	 * Generates a platform-specific query so that a table can be altered
 	 * Called by add_column(), drop_column(), and column_alter(),
 	 *
-	 * @access	private
 	 * @param	string	the ALTER type (ADD, DROP, CHANGE)
 	 * @param	string	the column name
 	 * @param	string	the table name
 	 * @param	string	the column definition
 	 * @param	string	the default value
-	 * @param	boolean	should 'NOT NULL' be added
+	 * @param	bool	should 'NOT NULL' be added
 	 * @param	string	the field after which we should add the new field
-	 * @return	object
+	 * @return	string
 	 */
-	function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '')
+	public function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '')
 	{
 		$sql = 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '.$this->db->protect_identifiers($column_name);
 
@@ -212,12 +206,11 @@ class CI_DB_oci8_forge extends CI_DB_forge {
 	 *
 	 * Generates a platform-specific query so that a table can be renamed
 	 *
-	 * @access	private
 	 * @param	string	the old table name
 	 * @param	string	the new table name
 	 * @return	string
 	 */
-	function _rename_table($table_name, $new_table_name)
+	public function _rename_table($table_name, $new_table_name)
 	{
 		return 'ALTER TABLE '.$this->db->protect_identifiers($table_name).' RENAME TO '.$this->db->protect_identifiers($new_table_name);
 	}
@@ -225,4 +218,4 @@ class CI_DB_oci8_forge extends CI_DB_forge {
 }
 
 /* End of file oci8_forge.php */
-/* Location: ./system/database/drivers/oci8/oci8_forge.php */
+/* Location: ./system/database/drivers/oci8/oci8_forge.php */
\ No newline at end of file
diff --git a/system/database/drivers/oci8/oci8_result.php b/system/database/drivers/oci8/oci8_result.php
index 6f1b8b4c1..c3f775730 100644
--- a/system/database/drivers/oci8/oci8_result.php
+++ b/system/database/drivers/oci8/oci8_result.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -25,8 +25,6 @@
  * @filesource
  */
 
-// ------------------------------------------------------------------------
-
 /**
  * oci8 Result Class
  *
@@ -57,9 +55,7 @@ class CI_DB_oci8_result extends CI_DB_result {
 	 * Oracle doesn't have a graceful way to retun the number of rows
 	 * so we have to use what amounts to a hack.
 	 *
-	 *
-	 * @access  public
-	 * @return  integer
+	 * @return	int
 	 */
 	public function num_rows()
 	{
@@ -82,8 +78,7 @@ class CI_DB_oci8_result extends CI_DB_result {
 	/**
 	 * Number of fields in the result set
 	 *
-	 * @access  public
-	 * @return  integer
+	 * @return	int
 	 */
 	public function num_fields()
 	{
@@ -105,7 +100,6 @@ class CI_DB_oci8_result extends CI_DB_result {
 	 *
 	 * Generates an array of column names
 	 *
-	 * @access	public
 	 * @return	array
 	 */
 	public function list_fields()
@@ -125,8 +119,7 @@ class CI_DB_oci8_result extends CI_DB_result {
 	 *
 	 * Generates an array of objects containing field meta-data
 	 *
-	 * @access  public
-	 * @return  array
+	 * @return	array
 	 */
 	public function field_data()
 	{
@@ -149,7 +142,7 @@ class CI_DB_oci8_result extends CI_DB_result {
 	/**
 	 * Free the result
 	 *
-	 * @return	null
+	 * @return	void
 	 */
 	public function free_result()
 	{
@@ -167,8 +160,7 @@ class CI_DB_oci8_result extends CI_DB_result {
 	 *
 	 * Returns the result set as an array
 	 *
-	 * @access  protected
-	 * @return  array
+	 * @return	array
 	 */
 	protected function _fetch_assoc()
 	{
@@ -183,8 +175,7 @@ class CI_DB_oci8_result extends CI_DB_result {
 	 *
 	 * Returns the result set as an object
 	 *
-	 * @access  protected
-	 * @return  object
+	 * @return	object
 	 */
 	protected function _fetch_object()
 	{
@@ -197,8 +188,7 @@ class CI_DB_oci8_result extends CI_DB_result {
 	/**
 	 * Query result.  "array" version.
 	 *
-	 * @access  public
-	 * @return  array
+	 * @return	array
 	 */
 	public function result_array()
 	{
@@ -221,11 +211,10 @@ class CI_DB_oci8_result extends CI_DB_result {
 	/**
 	 * Data Seek
 	 *
-	 * Moves the internal pointer to the desired offset.  We call
+	 * Moves the internal pointer to the desired offset. We call
 	 * this internally before fetching results to make sure the
 	 * result set starts at zero
 	 *
-	 * @access	protected
 	 * @return	array
 	 */
 	protected function _data_seek($n = 0)
@@ -235,6 +224,5 @@ class CI_DB_oci8_result extends CI_DB_result {
 
 }
 
-
 /* End of file oci8_result.php */
-/* Location: ./system/database/drivers/oci8/oci8_result.php */
+/* Location: ./system/database/drivers/oci8/oci8_result.php */
\ No newline at end of file
diff --git a/system/database/drivers/oci8/oci8_utility.php b/system/database/drivers/oci8/oci8_utility.php
index 62dfb2f3c..e303fb6cb 100644
--- a/system/database/drivers/oci8/oci8_utility.php
+++ b/system/database/drivers/oci8/oci8_utility.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -25,8 +25,6 @@
  * @filesource
  */
 
-// ------------------------------------------------------------------------
-
 /**
  * Oracle Utility Class
  *
@@ -39,10 +37,9 @@ class CI_DB_oci8_utility extends CI_DB_utility {
 	/**
 	 * List databases
 	 *
-	 * @access	private
 	 * @return	bool
 	 */
-	function _list_databases()
+	public function _list_databases()
 	{
 		return FALSE;
 	}
@@ -54,11 +51,10 @@ class CI_DB_oci8_utility extends CI_DB_utility {
 	 *
 	 * Generates a platform-specific query so that a table can be optimized
 	 *
-	 * @access	private
 	 * @param	string	the table name
-	 * @return	object
+	 * @return	bool
 	 */
-	function _optimize_table($table)
+	public function _optimize_table($table)
 	{
 		return FALSE; // Is this supported in Oracle?
 	}
@@ -70,11 +66,10 @@ class CI_DB_oci8_utility extends CI_DB_utility {
 	 *
 	 * Generates a platform-specific query so that a table can be repaired
 	 *
-	 * @access	private
 	 * @param	string	the table name
-	 * @return	object
+	 * @return	bool
 	 */
-	function _repair_table($table)
+	public function _repair_table($table)
 	{
 		return FALSE; // Is this supported in Oracle?
 	}
@@ -84,15 +79,15 @@ class CI_DB_oci8_utility extends CI_DB_utility {
 	/**
 	 * Oracle Export
 	 *
-	 * @access	private
 	 * @param	array	Preferences
 	 * @return	mixed
 	 */
-	function _backup($params = array())
+	public function _backup($params = array())
 	{
 		// Currently unsupported
 		return $this->db->display_error('db_unsuported_feature');
 	}
+
 }
 
 /* End of file oci8_utility.php */