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GUIDs (Globally Unique Identifiers)
InterSystems Programming Tools Index
GUIDs (Globally Unique Identifiers)
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Work with GUIDs (Globally Unique Identifiers).
Background Information
A GUID (globally unique identifier) is a unique reference number used as an identifier.
Available Tools
GUIDENABLED
class parameter
Enables you to generate a GUID for each instance of the class. See
“
Object Synchronization
”
in
Defining and Using Classes
.
%ExtentMgr.GUID
class
This class is a persistent class that gives you access to GUID,OID value pairs. This class can be queried using SQL. This class presents examples.
Availability
: All namespaces.
%GUID
class
Provides utility methods for GUIDs. These include:
%FindGUID()
AssignGUID()
And others
Availability
: All namespaces.
%SYSTEM.Util
class
Includes the following method:
CreateGUID()
Availability
: All namespaces.
Reminder
The special variable
$SYSTEM
is bound to the
%SYSTEM
package. This means that instead of
##class(%SYSTEM.class).method()
, you can use
$SYSTEM.class.method()
.
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Content Date/Time: 2019-02-15 22:51:05
