Thursday, July 23, 2015 2:15 PM
这三个roundtrip是串行的。如下图所示:
2.a 拿ETAG request: sap/fiori/cuscrmmycalendar/sap/opu/odata/sap/CRM_APPOINTMENT_SRV/AppointmentSet(guid’3440B5B1-6F66-1ED5-8BEB-BE9CE64BF3E8’)
response:
2.b 拿appointment的attendee和attachment信息:
sap/fiori/cuscrmmycalendar/sap/opu/odata/sap/CRM_APPOINTMENT_SRV/AppointmentSet(guid’3440B5B1-6F66-1ED5-8BEB-BE9CE64BF3E8’)?$expand=Attendee,AppointmentToAttachment
3.a 在appointment的attendee和attachment信息读取回来之后,在successHandler里再继续读note信息。3.a和2.b是串行的,即2.b执行完之后,才轮到3.a执行:
3.b 还是在appointment和attendee的信息读取回来之后,在successHandler里调用attachment view的bindElement方法:
这个方法会call到框架的createBindingContext,最终导致再trigger一个odata request: