SAP ABAP Program OS_EX_TREE (Object Services Examples: Trees) is using

• Class (11)
• Data Element (1)
• Interface (6)
• Class Method (19)

#	Object Type	Object Name	Object Description	Note
1	Interface	IF_MESSAGE	Interface for Accessing Texts from Message Objects
2	Interface	IF_OS_CA_PERSISTENCY	Class-Specific Persistence Interface
3	Interface	IF_OS_FACTORY	Interface of a Factory
4	Interface	IF_OS_STATE	State Management for a 'Managed Object'
5	Interface	IF_OS_TRANSACTION	Interface for Transaction Objects
6	Interface	IF_OS_TRANSACTION_MANAGER	Interface for Object Transaction Manager