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317 lines
9.7 KiB
C++
317 lines
9.7 KiB
C++
/* vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Places code.
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*
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* The Initial Developer of the Original Code is
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* the Mozilla Foundation.
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*
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* Portions created by the Initial Developer are Copyright (C) 2009
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Shawn Wilsher <me@shawnwilsher.com> (Original Author)
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef mozilla_places_SQLFunctions_h_
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#define mozilla_places_SQLFunctions_h_
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/**
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* This file contains functions that Places adds to the database handle that can
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* be accessed by SQL queries.
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*/
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#include "mozIStorageFunction.h"
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class mozIStorageConnection;
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namespace mozilla {
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namespace places {
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////////////////////////////////////////////////////////////////////////////////
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//// AutoComplete Matching Function
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/**
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* This function is used to determine if a given set of data should match an
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* AutoComplete query.
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*
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* In SQL, you'd use it in the WHERE clause like so:
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* WHERE AUTOCOMPLETE_MATCH(aSearchString, aURL, aTitle, aTags, aVisitCount,
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* aTyped, aBookmark, aOpenPageCount, aMatchBehavior,
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* aSearchBehavior)
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*
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* @param aSearchString
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* The string to compare against.
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* @param aURL
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* The URL to test for an AutoComplete match.
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* @param aTitle
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* The title to test for an AutoComplete match.
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* @param aTags
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* The tags to test for an AutoComplete match.
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* @param aVisitCount
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* The number of visits aURL has.
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* @param aTyped
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* Indicates if aURL is a typed URL or not. Treated as a boolean.
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* @param aBookmark
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* Indicates if aURL is a bookmark or not. Treated as a boolean.
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* @param aOpenPageCount
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* The number of times aURL has been registered as being open. (See
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* mozIPlacesAutoComplete::registerOpenPage.)
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* @param aMatchBehavior
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* The match behavior to use for this search.
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* @param aSearchBehavior
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* A bitfield dictating the search behavior.
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*/
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class MatchAutoCompleteFunction : public mozIStorageFunction
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_MOZISTORAGEFUNCTION
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/**
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* Registers the function with the specified database connection.
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*
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* @param aDBConn
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* The database connection to register with.
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*/
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static nsresult create(mozIStorageConnection *aDBConn);
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private:
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/**
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* Argument Indexes
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*/
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static const PRUint32 kArgSearchString = 0;
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static const PRUint32 kArgIndexURL = 1;
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static const PRUint32 kArgIndexTitle = 2;
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static const PRUint32 kArgIndexTags = 3;
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static const PRUint32 kArgIndexVisitCount = 4;
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static const PRUint32 kArgIndexTyped = 5;
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static const PRUint32 kArgIndexBookmark = 6;
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static const PRUint32 kArgIndexOpenPageCount = 7;
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static const PRUint32 kArgIndexMatchBehavior = 8;
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static const PRUint32 kArgIndexSearchBehavior = 9;
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static const PRUint32 kArgIndexLength = 10;
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/**
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* Typedefs
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*/
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typedef bool (*searchFunctionPtr)(const nsDependentCSubstring &aToken,
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const nsACString &aSourceString);
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typedef nsACString::const_char_iterator const_char_iterator;
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/**
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* Obtains the search function to match on.
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*
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* @param aBehavior
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* The matching behavior to use defined by one of the
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* mozIPlacesAutoComplete::MATCH_* values.
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* @return a pointer to the function that will perform the proper search.
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*/
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static searchFunctionPtr getSearchFunction(PRInt32 aBehavior);
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/**
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* Tests if aSourceString starts with aToken.
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*
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* @param aToken
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* The string to search for.
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* @param aSourceString
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* The string to search.
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* @return true if found, false otherwise.
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*/
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static bool findBeginning(const nsDependentCSubstring &aToken,
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const nsACString &aSourceString);
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/**
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* Tests if aSourceString starts with aToken in a case sensitive way.
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*
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* @param aToken
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* The string to search for.
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* @param aSourceString
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* The string to search.
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* @return true if found, false otherwise.
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*/
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static bool findBeginningCaseSensitive(const nsDependentCSubstring &aToken,
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const nsACString &aSourceString);
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/**
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* Searches aSourceString for aToken anywhere in the string in a case-
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* insensitive way.
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*
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* @param aToken
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* The string to search for.
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* @param aSourceString
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* The string to search.
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* @return true if found, false otherwise.
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*/
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static bool findAnywhere(const nsDependentCSubstring &aToken,
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const nsACString &aSourceString);
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/**
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* Tests if aToken is found on a word boundary in aSourceString.
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*
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* @param aToken
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* The string to search for.
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* @param aSourceString
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* The string to search.
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* @return true if found, false otherwise.
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*/
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static bool findOnBoundary(const nsDependentCSubstring &aToken,
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const nsACString &aSourceString);
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/**
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* Fixes a URI's spec such that it is ready to be searched. This includes
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* unescaping escaped characters and removing certain specs that we do not
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* care to search for.
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*
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* @param aURISpec
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* The spec of the URI to prepare for searching.
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* @param aMatchBehavior
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* The matching behavior to use defined by one of the
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* mozIPlacesAutoComplete::MATCH_* values.
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* @param _fixedSpec
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* An out parameter that is the fixed up string.
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*/
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static void fixupURISpec(const nsCString &aURISpec, PRInt32 aMatchBehavior,
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nsCString &_fixedSpec);
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};
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////////////////////////////////////////////////////////////////////////////////
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//// Frecency Calculation Function
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/**
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* This function is used to calculate frecency for a page.
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*
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* In SQL, you'd use it in when setting frecency like:
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* SET frecency = CALCULATE_FRECENCY(place_id).
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* Optional parameters must be passed in if the page is not yet in the database,
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* otherwise they will be fetched from it automatically.
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*
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* @param pageId
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* The id of the page. Pass -1 if the page is being added right now.
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* @param [optional] typed
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* Whether the page has been typed in. Default is false.
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* @param [optional] fullVisitCount
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* Count of all the visits (All types). Default is 0.
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* @param [optional] isBookmarked
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* Whether the page is bookmarked. Default is false.
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*/
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class CalculateFrecencyFunction : public mozIStorageFunction
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_MOZISTORAGEFUNCTION
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/**
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* Registers the function with the specified database connection.
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*
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* @param aDBConn
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* The database connection to register with.
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*/
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static nsresult create(mozIStorageConnection *aDBConn);
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};
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/**
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* SQL function to generate a GUID for a place or bookmark item. This is just
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* a wrapper around GenerateGUID in Helpers.h.
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*
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* @return a guid for the item.
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*/
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class GenerateGUIDFunction : public mozIStorageFunction
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_MOZISTORAGEFUNCTION
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/**
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* Registers the function with the specified database connection.
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*
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* @param aDBConn
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* The database connection to register with.
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*/
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static nsresult create(mozIStorageConnection *aDBConn);
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};
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/**
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* SQL function to unreverse the rev_host of a page.
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*
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* @param rev_host
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* The rev_host value of the page.
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*
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* @return the unreversed host of the page.
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*/
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class GetUnreversedHostFunction : public mozIStorageFunction
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_MOZISTORAGEFUNCTION
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/**
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* Registers the function with the specified database connection.
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*
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* @param aDBConn
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* The database connection to register with.
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*/
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static nsresult create(mozIStorageConnection *aDBConn);
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};
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////////////////////////////////////////////////////////////////////////////////
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//// Fixup URL Function
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/**
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* Make a given URL more suitable for searches, by removing common prefixes
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* such as "www."
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*
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* @param url
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* A URL.
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* @return
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* The same URL, with redundant parts removed.
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*/
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class FixupURLFunction : public mozIStorageFunction
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_MOZISTORAGEFUNCTION
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/**
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* Registers the function with the specified database connection.
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*
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* @param aDBConn
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* The database connection to register with.
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*/
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static nsresult create(mozIStorageConnection *aDBConn);
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};
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} // namespace places
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} // namespace storage
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#endif // mozilla_places_SQLFunctions_h_
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