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+<?php
+
+/**
+ * The Auth_OpenID_DatabaseConnection class, which is used to emulate
+ * a PEAR database connection.
+ *
+ * @package OpenID
+ * @author JanRain, Inc. <openid@janrain.com>
+ * @copyright 2005-2008 Janrain, Inc.
+ * @license http://www.apache.org/licenses/LICENSE-2.0 Apache
+ */
+
+/**
+ * An empty base class intended to emulate PEAR connection
+ * functionality in applications that supply their own database
+ * abstraction mechanisms. See {@link Auth_OpenID_SQLStore} for more
+ * information. You should subclass this class if you need to create
+ * an SQL store that needs to access its database using an
+ * application's database abstraction layer instead of a PEAR database
+ * connection. Any subclass of Auth_OpenID_DatabaseConnection MUST
+ * adhere to the interface specified here.
+ *
+ * @package OpenID
+ */
+class Auth_OpenID_DatabaseConnection {
+ /**
+ * Sets auto-commit mode on this database connection.
+ *
+ * @param bool $mode True if auto-commit is to be used; false if
+ * not.
+ */
+ function autoCommit($mode)
+ {
+ }
+
+ /**
+ * Run an SQL query with the specified parameters, if any.
+ *
+ * @param string $sql An SQL string with placeholders. The
+ * placeholders are assumed to be specific to the database engine
+ * for this connection.
+ *
+ * @param array $params An array of parameters to insert into the
+ * SQL string using this connection's escaping mechanism.
+ *
+ * @return mixed $result The result of calling this connection's
+ * internal query function. The type of result depends on the
+ * underlying database engine. This method is usually used when
+ * the result of a query is not important, like a DDL query.
+ */
+ function query($sql, $params = array())
+ {
+ }
+
+ /**
+ * Starts a transaction on this connection, if supported.
+ */
+ function begin()
+ {
+ }
+
+ /**
+ * Commits a transaction on this connection, if supported.
+ */
+ function commit()
+ {
+ }
+
+ /**
+ * Performs a rollback on this connection, if supported.
+ */
+ function rollback()
+ {
+ }
+
+ /**
+ * Run an SQL query and return the first column of the first row
+ * of the result set, if any.
+ *
+ * @param string $sql An SQL string with placeholders. The
+ * placeholders are assumed to be specific to the database engine
+ * for this connection.
+ *
+ * @param array $params An array of parameters to insert into the
+ * SQL string using this connection's escaping mechanism.
+ *
+ * @return mixed $result The value of the first column of the
+ * first row of the result set. False if no such result was
+ * found.
+ */
+ function getOne($sql, $params = array())
+ {
+ }
+
+ /**
+ * Run an SQL query and return the first row of the result set, if
+ * any.
+ *
+ * @param string $sql An SQL string with placeholders. The
+ * placeholders are assumed to be specific to the database engine
+ * for this connection.
+ *
+ * @param array $params An array of parameters to insert into the
+ * SQL string using this connection's escaping mechanism.
+ *
+ * @return array $result The first row of the result set, if any,
+ * keyed on column name. False if no such result was found.
+ */
+ function getRow($sql, $params = array())
+ {
+ }
+
+ /**
+ * Run an SQL query with the specified parameters, if any.
+ *
+ * @param string $sql An SQL string with placeholders. The
+ * placeholders are assumed to be specific to the database engine
+ * for this connection.
+ *
+ * @param array $params An array of parameters to insert into the
+ * SQL string using this connection's escaping mechanism.
+ *
+ * @return array $result An array of arrays representing the
+ * result of the query; each array is keyed on column name.
+ */
+ function getAll($sql, $params = array())
+ {
+ }
+}
+