зеркало из https://github.com/mozilla/pjs.git
338 строки
12 KiB
Plaintext
338 строки
12 KiB
Plaintext
/* -*- Mode: idl; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is Oracle Corporation code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Oracle Corporation
|
|
* Portions created by the Initial Developer are Copyright (C) 2004
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Vladimir Vukicevic <vladimir.vukicevic@oracle.com>
|
|
* Brett Wilson <brettw@gmail.com>
|
|
* Shawn Wilsher <me@shawnwilsher.com>
|
|
* Lev Serebryakov <lev@serebryakov.spb.ru>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#include "nsISupports.idl"
|
|
|
|
interface mozIStorageAggregateFunction;
|
|
interface mozIStorageCompletionCallback;
|
|
interface mozIStorageFunction;
|
|
interface mozIStorageProgressHandler;
|
|
interface mozIStorageBaseStatement;
|
|
interface mozIStorageStatement;
|
|
interface mozIStorageAsyncStatement;
|
|
interface mozIStorageStatementCallback;
|
|
interface mozIStoragePendingStatement;
|
|
interface nsIFile;
|
|
|
|
/**
|
|
* mozIStorageConnection represents a database connection attached to
|
|
* a specific file or to the in-memory data storage. It is the
|
|
* primary interface for interacting with a database, including
|
|
* creating prepared statements, executing SQL, and examining database
|
|
* errors.
|
|
*
|
|
* @threadsafe
|
|
*/
|
|
[scriptable, uuid(32b43ec6-e905-4070-9cfe-370c45f7c1bf)]
|
|
interface mozIStorageConnection : nsISupports {
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// Initialization and status
|
|
|
|
/**
|
|
* Closes a database connection. Callers must finalize all statements created
|
|
* for this connection prior to calling this method. It is illegal to use
|
|
* call this method if any asynchronous statements have been executed on this
|
|
* connection.
|
|
*
|
|
* @throws NS_ERROR_UNEXPECTED
|
|
* If any statement has been executed asynchronously on this object.
|
|
* @throws NS_ERROR_UNEXPECTED
|
|
* If is called on a thread other than the one that opened it.
|
|
*/
|
|
void close();
|
|
|
|
/**
|
|
* Asynchronously closes a database connection, allowing all pending
|
|
* asynchronous statements to complete first.
|
|
*
|
|
* @param aCallback [optional]
|
|
* A callback that will be notified when the close is completed.
|
|
*
|
|
* @throws NS_ERROR_UNEXPECTED
|
|
* If is called on a thread other than the one that opened it.
|
|
*/
|
|
void asyncClose([optional] in mozIStorageCompletionCallback aCallback);
|
|
|
|
/**
|
|
* Indicates if the connection is open and ready to use. This will be false
|
|
* if the connection failed to open, or it has been closed.
|
|
*/
|
|
readonly attribute boolean connectionReady;
|
|
|
|
/**
|
|
* The current database nsIFile. Null if the database
|
|
* connection refers to an in-memory database.
|
|
*/
|
|
readonly attribute nsIFile databaseFile;
|
|
|
|
/**
|
|
* lastInsertRowID returns the row ID from the last INSERT
|
|
* operation.
|
|
*/
|
|
readonly attribute long long lastInsertRowID;
|
|
|
|
/**
|
|
* The last error SQLite error code.
|
|
*/
|
|
readonly attribute long lastError;
|
|
|
|
/**
|
|
* The last SQLite error as a string (in english, straight from the
|
|
* sqlite library).
|
|
*/
|
|
readonly attribute AUTF8String lastErrorString;
|
|
|
|
/**
|
|
* The schema version of the database. This should not be used until the
|
|
* database is ready. The schema will be reported as zero if it is not set.
|
|
*/
|
|
attribute long schemaVersion;
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// Statement creation
|
|
|
|
/**
|
|
* Create a mozIStorageStatement for the given SQL expression. The
|
|
* expression may use ? to indicate sequential numbered arguments,
|
|
* ?1, ?2 etc. to indicate specific numbered arguments or :name and
|
|
* $var to indicate named arguments.
|
|
*
|
|
* @param aSQLStatement
|
|
* The SQL statement to execute.
|
|
* @return a new mozIStorageStatement
|
|
*/
|
|
mozIStorageStatement createStatement(in AUTF8String aSQLStatement);
|
|
|
|
/**
|
|
* Create an asynchronous statement (mozIStorageAsyncStatement) for the given
|
|
* SQL expression. An asynchronous statement can only be used to dispatch
|
|
* asynchronous requests to the asynchronous execution thread and cannot be
|
|
* used to take any synchronous actions on the database.
|
|
*
|
|
* The expression may use ? to indicate sequential numbered arguments,
|
|
* ?1, ?2 etc. to indicate specific numbered arguments or :name and
|
|
* $var to indicate named arguments.
|
|
*
|
|
* @param aSQLStatement
|
|
* The SQL statement to execute.
|
|
* @return a new mozIStorageAsyncStatement
|
|
*/
|
|
mozIStorageAsyncStatement createAsyncStatement(in AUTF8String aSQLStatement);
|
|
|
|
/**
|
|
* Execute a SQL expression, expecting no arguments.
|
|
*
|
|
* @param aSQLStatement The SQL statement to execute
|
|
*/
|
|
void executeSimpleSQL(in AUTF8String aSQLStatement);
|
|
|
|
/**
|
|
* Execute an array of queries created with this connection asynchronously
|
|
* using any currently bound parameters. The statements are ran wrapped in a
|
|
* transaction. These statements can be reused immediately, and reset does
|
|
* not need to be called.
|
|
*
|
|
* Note: If you have any custom defined functions, they must be re-entrant
|
|
* since they can be called on multiple threads.
|
|
*
|
|
* @param aStatements
|
|
* The array of statements to execute asynchronously, in the order they
|
|
* are given in the array.
|
|
* @param aNumStatements
|
|
* The number of statements in aStatements.
|
|
* @param aCallback [optional]
|
|
* The callback object that will be notified of progress, errors, and
|
|
* completion.
|
|
* @return an object that can be used to cancel the statements execution.
|
|
*/
|
|
mozIStoragePendingStatement executeAsync(
|
|
[array, size_is(aNumStatements)] in mozIStorageBaseStatement aStatements,
|
|
in unsigned long aNumStatements,
|
|
[optional] in mozIStorageStatementCallback aCallback
|
|
);
|
|
|
|
/**
|
|
* Check if the given table exists.
|
|
*
|
|
* @param aTableName
|
|
* The table to check
|
|
* @return TRUE if table exists, FALSE otherwise.
|
|
*/
|
|
boolean tableExists(in AUTF8String aTableName);
|
|
|
|
/**
|
|
* Check if the given index exists.
|
|
*
|
|
* @param aIndexName The index to check
|
|
* @return TRUE if the index exists, FALSE otherwise.
|
|
*/
|
|
boolean indexExists(in AUTF8String aIndexName);
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// Transactions
|
|
|
|
/**
|
|
* Returns true if a transaction is active on this connection.
|
|
*/
|
|
readonly attribute boolean transactionInProgress;
|
|
|
|
/**
|
|
* Begin a new transaction. sqlite default transactions are deferred.
|
|
* If a transaction is active, throws an error.
|
|
*/
|
|
void beginTransaction();
|
|
|
|
/**
|
|
* Begins a new transaction with the given type.
|
|
*/
|
|
const PRInt32 TRANSACTION_DEFERRED = 0;
|
|
const PRInt32 TRANSACTION_IMMEDIATE = 1;
|
|
const PRInt32 TRANSACTION_EXCLUSIVE = 2;
|
|
void beginTransactionAs(in PRInt32 transactionType);
|
|
|
|
/**
|
|
* Commits the current transaction. If no transaction is active,
|
|
* @throws NS_ERROR_UNEXPECTED.
|
|
* @throws NS_ERROR_NOT_INITIALIZED.
|
|
*/
|
|
void commitTransaction();
|
|
|
|
/**
|
|
* Rolls back the current transaction. If no transaction is active,
|
|
* @throws NS_ERROR_UNEXPECTED.
|
|
* @throws NS_ERROR_NOT_INITIALIZED.
|
|
*/
|
|
void rollbackTransaction();
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// Tables
|
|
|
|
/**
|
|
* Create the table with the given name and schema.
|
|
*
|
|
* If the table already exists, NS_ERROR_FAILURE is thrown.
|
|
* (XXX at some point in the future it will check if the schema is
|
|
* the same as what is specified, but that doesn't happen currently.)
|
|
*
|
|
* @param aTableName
|
|
* The table name to be created, consisting of [A-Za-z0-9_], and
|
|
* beginning with a letter.
|
|
* @param aTableSchema
|
|
* The schema of the table; what would normally go between the parens
|
|
* in a CREATE TABLE statement: e.g., "foo INTEGER, bar STRING".
|
|
*
|
|
* @throws NS_ERROR_FAILURE
|
|
* If the table already exists or could not be created for any other
|
|
* reason.
|
|
*/
|
|
void createTable(in string aTableName,
|
|
in string aTableSchema);
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// Functions
|
|
|
|
/**
|
|
* Create a new SQL function. If you use your connection on multiple threads,
|
|
* your function needs to be threadsafe, or it should only be called on one
|
|
* thread.
|
|
*
|
|
* @param aFunctionName
|
|
* The name of function to create, as seen in SQL.
|
|
* @param aNumArguments
|
|
* The number of arguments the function takes. Pass -1 for
|
|
* variable-argument functions.
|
|
* @param aFunction
|
|
* The instance of mozIStorageFunction, which implements the function
|
|
* in question.
|
|
*/
|
|
void createFunction(in AUTF8String aFunctionName,
|
|
in long aNumArguments,
|
|
in mozIStorageFunction aFunction);
|
|
|
|
/**
|
|
* Create a new SQL aggregate function. If you use your connection on
|
|
* multiple threads, your function needs to be threadsafe, or it should only
|
|
* be called on one thread.
|
|
*
|
|
* @param aFunctionName
|
|
* The name of aggregate function to create, as seen in SQL.
|
|
* @param aNumArguments
|
|
* The number of arguments the function takes. Pass -1 for
|
|
* variable-argument functions.
|
|
* @param aFunction
|
|
* The instance of mozIStorageAggreagteFunction, which implements the
|
|
* function in question.
|
|
*/
|
|
void createAggregateFunction(in AUTF8String aFunctionName,
|
|
in long aNumArguments,
|
|
in mozIStorageAggregateFunction aFunction);
|
|
/**
|
|
* Delete custom SQL function (simple or aggregate one).
|
|
*
|
|
* @param aFunctionName
|
|
* The name of function to remove.
|
|
*/
|
|
void removeFunction(in AUTF8String aFunctionName);
|
|
|
|
/**
|
|
* Sets a progress handler. Only one handler can be registered at a time.
|
|
* If you need more than one, you need to chain them yourself. This progress
|
|
* handler should be threadsafe if you use this connection object on more than
|
|
* one thread.
|
|
*
|
|
* @param aGranularity
|
|
* The number of SQL virtual machine steps between progress handler
|
|
* callbacks.
|
|
* @param aHandler
|
|
* The instance of mozIStorageProgressHandler.
|
|
* @return previous registered handler.
|
|
*/
|
|
mozIStorageProgressHandler setProgressHandler(in PRInt32 aGranularity,
|
|
in mozIStorageProgressHandler aHandler);
|
|
|
|
/**
|
|
* Remove a progress handler.
|
|
*
|
|
* @return previous registered handler.
|
|
*/
|
|
mozIStorageProgressHandler removeProgressHandler();
|
|
};
|