nsDBFolderInfo.h - mozsearch

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/* This class encapsulates the global information about a folder stored in the

   summary file.

*/

#ifndef _nsDBFolderInfo_H

#define _nsDBFolderInfo_H

#include "mozilla/MemoryReporting.h"

#include "nsString.h"

#include "mdb.h"

#include "nsTArray.h"

#include "nsIDBFolderInfo.h"

#include <time.h>

class nsMsgDatabase;

// again, this could inherit from nsISupports, but I don't see the need as of

// yet. I'm not sure it needs to be ref-counted (but I think it does).

// I think these getters and setters really need to go through mdb and not rely

// on the object caching the values. If this somehow turns out to be

// prohibitively expensive, we can invent some sort of dirty mechanism, but I

// think it turns out that these values will be cached by the MSG_FolderInfo's

// anyway.

class nsDBFolderInfo : public nsIDBFolderInfo {

 public:

  friend class nsMsgDatabase;

  explicit nsDBFolderInfo(nsMsgDatabase* mdb);

  NS_DECL_ISUPPORTS

  // interface methods.

  NS_DECL_NSIDBFOLDERINFO

  // create the appropriate table and row in a new db.

  nsresult AddToNewMDB();

  // accessor methods.

  bool TestFlag(int32_t flags);

  int16_t GetIMAPHierarchySeparator();

  void SetIMAPHierarchySeparator(int16_t hierarchyDelimiter);

  void ChangeImapTotalPendingMessages(int32_t delta);

  void ChangeImapUnreadPendingMessages(int32_t delta);

  nsresult InitFromExistingDB();

  // get and set arbitrary property, aka row cell value.

  nsresult SetPropertyWithToken(mdb_token aProperty,

                                const nsAString& propertyStr);

  nsresult SetUint32PropertyWithToken(mdb_token aProperty,

                                      uint32_t propertyValue);

  nsresult SetInt64PropertyWithToken(mdb_token aProperty,

                                     int64_t propertyValue);

  nsresult SetInt32PropertyWithToken(mdb_token aProperty,

                                     int32_t propertyValue);

  nsresult GetPropertyWithToken(mdb_token aProperty, nsAString& propertyValue);

  nsresult GetUint32PropertyWithToken(mdb_token aProperty,

                                      uint32_t& propertyValue,

                                      uint32_t defaultValue = 0);

  nsresult GetInt32PropertyWithToken(mdb_token aProperty,

                                     int32_t& propertyValue,

                                     int32_t defaultValue = 0);

  nsresult GetInt64PropertyWithToken(mdb_token aProperty,

                                     int64_t& propertyValue,

                                     int64_t defaultValue = 0);

  nsTArray<nsMsgKey> m_lateredKeys;  // list of latered messages

  virtual size_t SizeOfExcludingThis(

      mozilla::MallocSizeOf aMallocSizeOf) const {

    return m_lateredKeys.ShallowSizeOfExcludingThis(aMallocSizeOf);

  virtual size_t SizeOfIncludingThis(

      mozilla::MallocSizeOf aMallocSizeOf) const {

    return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);

 protected:

  virtual ~nsDBFolderInfo();

  // initialize from appropriate table and row in existing db.

  nsresult InitMDBInfo();

  nsresult LoadMemberVariables();

  nsresult AdjustHighWater(nsMsgKey highWater, bool force);

  void

  ReleaseExternalReferences();  // let go of any references to other objects.

  int64_t m_folderSize;

  int64_t m_expungedBytes;  // sum of size of deleted messages in folder

  uint32_t m_folderDate;

  nsMsgKey m_highWaterMessageKey;  // largest news article number or imap uid

                                   // whose header we've seen

  //  m_numUnreadMessages and m_numMessages can never be negative. 0 means 'no

  //  msgs'.

  int32_t m_numUnreadMessages;

  int32_t m_numMessages;  // includes expunged and ignored messages

  int32_t m_flags;  // folder specific flags. This holds things like re-use

                    // thread pane,

  // configured for off-line use, use default retrieval, purge article/header

  // options

  uint16_t m_version;                // for upgrading...

  int16_t m_IMAPHierarchySeparator;  // imap path separator

  // mail only (for now)

  // IMAP only

  int32_t m_ImapUidValidity;

  int32_t m_totalPendingMessages;

  int32_t m_unreadPendingMessages;

  // news only (for now)

  nsMsgKey

      m_expiredMark;  // Highest invalid article number in group - for expiring

  // the db folder info will have to know what db and row it belongs to, since

  // it is really just a wrapper around the singleton folder info row in the

  // mdb.

  nsMsgDatabase* m_mdb;

  nsIMdbTable* m_mdbTable;  // singleton table in db

  nsIMdbRow* m_mdbRow;      // singleton row in table;

  bool m_mdbTokensInitialized;

  mdb_token m_rowScopeToken;

  mdb_token m_tableKindToken;

  // tokens for the pre-set columns - we cache these for speed, which may be

  // silly

  mdb_token m_mailboxNameColumnToken;

  mdb_token m_numMessagesColumnToken;

  mdb_token m_numUnreadMessagesColumnToken;

  mdb_token m_flagsColumnToken;

  mdb_token m_folderSizeColumnToken;

  mdb_token m_expungedBytesColumnToken;

  mdb_token m_folderDateColumnToken;

  mdb_token m_highWaterMessageKeyColumnToken;

  mdb_token m_imapUidValidityColumnToken;

  mdb_token m_totalPendingMessagesColumnToken;

  mdb_token m_unreadPendingMessagesColumnToken;

  mdb_token m_expiredMarkColumnToken;

  mdb_token m_versionColumnToken;

};

#endif