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ABAP BDL - DEFINE BEHAVIOR
Other versions:
7.31 | 7.40 | 7.54
Syntax
define behavior for CDSEntityName [alias AliasName]
[implementation in class ClassName unique]
[late numbering [in place]]
[etag field|AncestorEntity~Field ( LocalField = MasterField )]
[lock master|dependent ( LocalField = MasterField )]
{
[field(read only | mandatory) field1[, field2, ...];]
[internal] create;
[internal] update;
[internal] delete;
[internal] [static] action ActionName
[external LongName]
[parameter InputParameterEntity|$self]
[result cardinality OutputParameterEntity|$self];
[internal] association AssociationName
[abbreviation AbbreviationName] {[[internal]create;]};
}
Effect
Similarly to CDS entities, the behavior for an entity can be divided into a part for once-only specifications (implementation, late numbering, etag, and lock), followed by a part of multiple specifications (field, standard operations, actions, and associations) enclosed in {...}.
Example
In the following example, the data from the ABAP flight data reference scenario (or flight data scenario for short) is used. It represents a legacy business logic that can be used to create and edit flight bookings. The CDS view /DMO/I_Travel represents the root node of the business object for managing flight trips. The underlying business model is described in ABAP BDL - Example.
The following example shows the behavior definition for the root entity Travel.
define behavior for /DMO/I_Travel alias Travel
late numbering
lock master
etag LastChangedAt
{
field (read only) Travel_ID;
field (mandatory) Agency_ID, Customer_ID, Begin_Date, End_Date;
create;
update;
delete;
action set_status_booked result [1] $self;
association _Booking { create; }
}
Continue
ABAP BDL - DEFINE BEHAVIOR, alias
ABAP BDL - DEFINE BEHAVIOR, in class unique
ABAP BDL - DEFINE BEHAVIOR, late numbering
ABAP BDL - DEFINE BEHAVIOR, etag
ABAP BDL - DEFINE BEHAVIOR, lock
ABAP BDL - DEFINE BEHAVIOR, field
ABAP BDL - DEFINE BEHAVIOR, Standard Operations