Skip to content

ABAP Keyword Documentation →  ABAP - Reference →  Creating Objects and Values →  Shared Objects →  Shared Objects - Areas 

Areas - Fixed Area Properties

Like basic properties, fixed properties of an area can be only be changed by developers. When the fixed properties of an area are changed during operation, all area instances of the area are set to status expired. The area class does not have to be regenerated however.

  • Area Binding
The context specified for this property defines the visibility and lifetime of the area instance version of the instance. Possible contexts are:
  • Application server

    Area instance versions exist until the application server is shut down.
  • User session

    Area instances exist until the last ABAP session of the current user session ends. For area binding, every user logon to an AS ABAP counts individually. This also applies in particular when users log on using external interfaces such as RFC or ICF.
  • Top level transaction

    The top level transaction is the first program in a call sequence. These area instances exist for as long as the ABAP memory assigned to a call sequence is loaded, in other words for as long as the internal session of the top level transaction is loaded.
  • Area Instance Versioning
This property defines whether there can be only one or more than one area instance version of an area instance. Without versioning, there is only one version and the area instance is equivalent to this area instance version. With versioning, there can be multiple versions in different states, and an area instance is the quantity of all area instance versions with the same area instance name.
Without versioning, multiple readers from different internal sessions can access an area instance after it has been built. Write access is only possible if no read locks are in force. With versioning, a change lock can be set on an area instance that still has read locks.
The maximum number of versions of an area instance can be specified in the runtime-dependent area properties.

Other versions: 7.31 | 7.40 | 7.54