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# ignore-this-changeset Depends on D28954 Differential Revision: https://phabricator.services.mozilla.com/D28956 --HG-- extra : moz-landing-system : lando
85 lines
2.8 KiB
C++
85 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozStorageSQLFunctions_h
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#define mozStorageSQLFunctions_h
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#include "sqlite3.h"
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#include "nscore.h"
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namespace mozilla {
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namespace storage {
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/**
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* Registers the functions declared here with the specified database.
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*
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* @param aDB
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* The database we'll be registering the functions with.
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* @return the SQLite status code indicating success or failure.
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*/
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int registerFunctions(sqlite3* aDB);
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////////////////////////////////////////////////////////////////////////////////
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//// Predefined Functions
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/**
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* Overridden function to perform the SQL functions UPPER and LOWER. These
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* support unicode, which the default implementations do not do.
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*
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* @param aCtx
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* The sqlite_context that this function is being called on.
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* @param aArgc
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* The number of arguments the function is being called with.
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* @param aArgv
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* An array of the arguments the functions is being called with.
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*/
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void caseFunction(sqlite3_context* aCtx, int aArgc, sqlite3_value** aArgv);
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/**
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* Overridden function to perform the SQL function LIKE. This supports unicode,
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* which the default implementation does not do.
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*
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* @param aCtx
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* The sqlite_context that this function is being called on.
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* @param aArgc
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* The number of arguments the function is being called with.
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* @param aArgv
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* An array of the arguments the functions is being called with.
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*/
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void likeFunction(sqlite3_context* aCtx, int aArgc, sqlite3_value** aArgv);
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/**
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* An implementation of the Levenshtein Edit Distance algorithm for use in
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* Sqlite queries.
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*
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* @param aCtx
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* The sqlite_context that this function is being called on.
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* @param aArgc
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* The number of arguments the function is being called with.
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* @param aArgv
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* An array of the arguments the functions is being called with.
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*/
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void levenshteinDistanceFunction(sqlite3_context* aCtx, int aArgc,
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sqlite3_value** aArgv);
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/**
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* An alternative string length function that uses XPCOM string classes for
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* string length calculation.
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*
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* @param aCtx
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* The sqlite_context that this function is being called on.
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* @param aArgc
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* The number of arguments the function is being called with.
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* @param aArgv
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* An array of the arguments the functions is being called with.
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*/
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void utf16LengthFunction(sqlite3_context* aCtx, int aArgc,
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sqlite3_value** aArgv);
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} // namespace storage
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} // namespace mozilla
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#endif // mozStorageSQLFunctions_h
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