FDO API Reference | Feature Data Objects |
00001 #ifndef _LOCKTYPE_H_ 00002 #define _LOCKTYPE_H_ 00003 // 00004 00005 // 00006 // Copyright (C) 2004-2006 Autodesk, Inc. 00007 // 00008 // This library is free software; you can redistribute it and/or 00009 // modify it under the terms of version 2.1 of the GNU Lesser 00010 // General Public License as published by the Free Software Foundation. 00011 // 00012 // This library is distributed in the hope that it will be useful, 00013 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 // Lesser General Public License for more details. 00016 // 00017 // You should have received a copy of the GNU Lesser General Public 00018 // License along with this library; if not, write to the Free Software 00019 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00020 // 00021 00022 #ifdef _WIN32 00023 #pragma once 00024 #endif 00025 00026 /// \ingroup (enums) 00027 /// \brief 00028 /// The FdoLockType enumeration defines lock types. The lock type for 00029 /// a locked object indicates a user's access privileges (including the user 00030 /// who applied the persistent lock) to an object. 00031 /// <p> 00032 /// The enumeration values are used with the commands FdoIAcquireLock, FdoISelect 00033 /// and FdoIGetLockInfo. With the command FdoIAcquireLock or FdoISelect, the 00034 /// specified value indicates the lock type to be used when applying a lock on 00035 /// an object. With the command FdoIGetLockInfo, the enumaration values are used 00036 /// to report lock types back to the user. 00037 /// </p> 00038 /// <p> 00039 /// The enumeration contains some special lock types (FdoLockType_None and FdoLockType_Unsupported) 00040 /// that are used only when reporting lock type information. 00041 /// These special lock types cannot be used to specify a lock type to be applied 00042 /// to an object. 00043 /// </p> 00044 00045 enum FdoLockType 00046 { 00047 00048 /// Indicates that an object is unlocked. 00049 /// This type cannot be used with the commands FdoIAcquireLock and FdoISelect. 00050 FdoLockType_None, 00051 /// Indicates a shared lock type. The type can 00052 /// be used with the commands FdoIAcquireLock and FdoISelect. 00053 FdoLockType_Shared, 00054 /// Indicates that only this user can modify 00055 /// this object. In a long transaction situation, any user can modify the object in any 00056 /// other long transaction, including the root long transaction if it is not the current 00057 /// long transaction. 00058 /// The type can be used with the commands FdoIAcquireLock and FdoISelect. 00059 FdoLockType_Exclusive, 00060 /// Indicates that a transaction lock 00061 /// should be applied on an object. This type can be used with the commands 00062 /// FdoIAcquireLock and FdoISelect. 00063 FdoLockType_Transaction, 00064 /// Indicates that an unsupported lock 00065 /// type has been encountered. This type cannot be used with the commands 00066 /// FdoIAcquireLock and FdoISelect. 00067 FdoLockType_Unsupported, 00068 /// Indicates that only this user can 00069 /// modify this object in this long transaction. No user, not even the user locking the object, 00070 /// can modify the object in any long transaction created as a descendent of the one 00071 /// containing the object being locked. When not in a long transaction situation (for example, 00072 /// if only a root long transaction exists), the lock behaves like an Exclusive lock. 00073 /// This type can be used with the commands FdoIAcquireLock and FdoISelect. 00074 FdoLockType_AllLongTransactionExclusive, 00075 /// Indicates that only this user can 00076 /// modify this object in the long transaction containing the object or any long 00077 /// transaction created as a descendent of that one. When not in a long transaction 00078 /// situation (for example, if only a root long transaction exists), the lock behaves 00079 /// like an Exclusive lock. 00080 /// The type can be used with the commands FdoIAcquireLock and FdoISelect. 00081 FdoLockType_LongTransactionExclusive 00082 00083 }; 00084 #endif 00085 00086
Comments or suggestions? Send us feedback. |