GUIDs (Globally Unique Identifiers)

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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Globals