Using Caché Objects - InterSystems Documentation

• classname is a quoted string the name of class whose instances are receiving GUIDs,
such as "Sample.Person".
• displayoutput is an integer where zero specifies that no output is displayed and a nonzero
value specifies that output is displayed.
and where the method returns a %Status value.
4. Recompile the class.
5. Put a copy of the database on each site.
Running an Update
17.2.2 The Update Itself
This involves updating one database from another. The database providing the updates is
known as the “source database” ; the database receiving the updates is known as the “target
database.” To perform the actual synchronization, the process is:
1. Each time you wish to synchronize the two databases, go to the instance with the source
database. On the source database, create a new SyncSet using the %New method of the
%SYNC.SyncSet class:
Set SrcSyncSet = ##class(%SYNC.SyncSet).%New("unique_value")
The integer argument to %New, unique_value, should be an easily identified, unique
value. This ensures that each addition to the transaction log on each site can be differentiated
from the others.
2. Once you have created the SyncSet, you can invoke the AddTransactions method of
the SyncSet class:
Do SrcSyncSet.AddTransactions(FirstTransaction,LastTransaction,ExcludedDB)
where
• FirstTransaction is the first transaction number to synchronize.
• LastTransaction is the last transaction number to synchronize.
• ExcludedDB specifies a namespace within a database whose transactions are not
included in the SyncSet.
This method collects the synchronization data and puts it in a global, ready for export.
If you wish to simply synchronize all transactions since the last synchronization, invoke
the method in the following form:
Using Caché Objects 151