ShareType contains a string defining how a file will be shared when opened.

dbfile.ShareType Type (*String)

Field Values

String value containing one of the following:

• Exclusive - File is opened for update, exclusive lock.
  This lock can be held by exactly one database session. No other sessions are granted any lock type on the object when an Exclusive lock is held, and conversely, the Exclusive lock will not be granted if any other type of lock is held in another session. The granted session has exclusive system access to the object.
• ExclusiveRead - File is opened for update, other jobs may read.
  When this lock is granted, other database sessions may access the object for read-only access, but no other sessions are granted any type of exclusive access. This is appropriate to use when the object should be restricted from any access other than read access.
• ShareUpdate - File is opened for update, other jobs may read or update.
  When this lock is granted, the object can be accessed for updating or reading by other sessions. When held, other sessions will be granted ShareRead or ShareUpdate locks for the same object. This lock prevents Exclusive access to the object. This lock type is appropriate when the target object is to be modified in the current session, and read and change access in other sessions should be allowed.
• ShareNoUpdate - File is opened for read, other jobs may read.
  When this lock is granted, the object can be accessed only for reading by other sessions. When held, other sessions will be granted ShareRead or ShareNoUpdate locks for the same object. This lock prevents exclusive access and update access to the object. This lock type is appropriate when the target object should not be modified by any session, but all sessions should be allowed to read the object.
• ShareRead - File is opened for read, other jobs may read or update.
  When this lock is granted, the object can be accessed non-exclusively by other sessions. When held, other sessions will be granted ExlusiveRead, ShareUpdate, ShareRead or ShareNoUpdate locks for the same object, so long as the lock requested does not conflict with another session's held lock. Alone, this lock prevents only Exclusive access. It is appropriate when the target object should not be locked exclusively by any one session.

Remarks

ShareType must be set prior to opening the file (see OPEN command).

If ShareType is not set, the value of the ShareType parameter specified in the DCLDISKFILE command is used.

Requirements

Namespace: ASNA.VisualRPG.Runtime

Assembly: ASNA.VisualRPG.Runtime(in ASNA.VisualRPG.Runtime.dll)

Platforms: Windows 2000 Professional SP4, Windows 2000 Server SP4, Windows Server 2003, Windows XP Professional SP2, Windows Vista Business Edition

See Also

ASNA.VisualRPG.Runtime
DBFile Class
DBFile Members
DCLDISKFILE