EXT201_5.1.4

managed implementation in class ZCL_BP_I_TRAVEL_M_XXX unique;

define behavior for ZI_Travel_M_XXX alias Travel
persistent table ztravel_xxx
etag last_changed_at
lock master
{
// administrative fields (read only)
field ( readonly ) last_changed_at, last_changed_by, created_at, created_by;

// mandatory fields that are required to create a travel
field ( mandatory ) agency_id, overall_status, booking_fee, currency_code;

// dynamic field control
field (features : instance ) travel_id;

// standard operations for travel entity
create;
update;
delete;
}