Generating list of changesets and updating work Free chubby sex cams no reg
The OData specifications define a changeset as an atomic unit of work that is made up of an unordered group of one or more of the insert, update or delete operations.The SAP Gateway framework, however, processes the changeset operations in an atomic manner and in the same order as they are defined in the changeset.In this context clients of a data service can collect or “batch up” several requests and then send that batch to the data service in a single HTTP request.You can use under a standard format allowing the representation of multiple parts, each of which may have a different content type, within a single request.Every changeset is treated as one Logical Unit of Work (LUW), ensuring its "all or nothing" character.All operations of a changeset will be sent at once from the SAP Gateway hub system to the provider application in the backend system for processing.
Each response includes a Content-Type header with a value of .
Example 1 for read entity ========================= Batch Request Header POST .../sap/opu/odata/IWFND/RMTSAMPLEFLIGHT/$batch Content-Type multipart/mixed;boundary=batch_01869434-0001 Batch Request Body --batch_01869434-0001 Content-Type: application/http Content-Transfer-Encoding: binary Example for two changesets with one operation in each changeset ================================================================= Batch Request Header POST .../sap/opu/odata/IWFND/RMTSAMPLEFLIGHT/$batch Content-Type multipart/mixed;boundary=batch_01869434-0006 Batch Request Body --batch_01869434-0006 Content-Type: multipart/mixed; boundary=changeset_01869434-0006-0001 --changeset_01869434-0006-0002 Content-Type: application/http Content-Transfer-Encoding: binary PUT Travelagency Collection(agencynum='00001756') HTTP/1.1 Content-Type: application/atom xml Content-Length: 1021 (This length must be equal to or greater than the real length of the data below) --changeset_01869434-0006-0002-- --batch_01869434-0006-- Batch Response Header Status Code/Reason 202 (Accepted) Content-Type multipart/mixed; boundary=ejjeeffe0 Batch Response Body --ejjeeffe0 Content-Type: multipart/mixed; boundary=ejjeeffe1 Content-Length: 215 --ejjeeffe1 Content-Type: application/http Content-Length: 96 content-transfer-encoding: binary HTTP/1.1 204 No Content Content-Type: text/html Content-Length: 0 dataserviceversion: 2.0 --ejjeeffe1-- --ejjeeffe0 Content-Type: multipart/mixed; boundary=ejjeeffe1 Content-Length: 215 --ejjeeffe1 Content-Type: application/http Content-Length: 96 content-transfer-encoding: binary HTTP/1.1 204 No Content Content-Type: text/html Content-Length: 0 dataserviceversion: 2.0 --ejjeeffe1-- --ejjeeffe0-- If you have several operations in a change set one operation can refer to another operation by using content ID referencing, rather than using the key of an entity type instance which may not be known at that time.
To define a content ID for a specific operation the following syntax needs to be used in the is an existing content ID that was defined for another operation from the same change set.
As defined in the OData specification for batch processing , in case an operation within a changeset fails the batch response body contains only one single response for this changeset indicating the failure of the entire changeset. changeset processing when the data providers is able to handle the entire operation of changeset at once at end of changeset: For this to be possible the data provider must implement the changeset handling API to process all changeset operations within one API ( to inform the framework that it can process all changeset operations at once (deferred processing).
Based on the list of entity set name, entity type name and action name, a data provider can dynamically set the exporting parameter mentioned above to inform the framework that it will process the current changeset at once or to reset this parameter to have a single processing as usual. That means without any changes in a data provider each changeset operation will be processed one after another as usual.