/IWBEP/IF_MGW_REQ_ENTITY

Method GET_ENTITY_TYPE_NAME

This method is used to return the technical name of the target entity type

Method GET_ENTITY_SET_NAME

This method is used to return the technical name of target the entity set.

Method GET_SOURCE_ENTITY_TYPE_NAME

This method is used to return the technical name of the source entity type.

Method GET_SOURCE_ENTITY_SET_NAME

This method is used to return the technical name of source entity set

Method GET_SOURCE_KEYS

This method is to be used when the entity is called by a navigation: Source entity type and target entity type are different. The method returns a table of source entity keys. The returned key values are not converted even if they are defined in the Model Provider Class as convertible. Use method GET_CONVERTED_SOURCE_KEYS to get the key values converted automatically.

Method GET_KEYS

This method is to be used when the entity is called directly: Source entity type and target entity type are the same. The method returns a table of keys for the requested entity. The returned key values are not converted even if they are defined in the Model Provider Class as convertible. Use method GET_CONVERTED_KEYS to get the key values converted automatically.

Method GET_NAVIGATION_PATH

This method is used to return the navigation path using technical names.

Select the system query option ($select) to select only a subset of properties which should be returned by the server. The $select can be considered by the application for performance reasons and improvements. The SAP Gateway runtime takes care of applying the $select properly irrespective of whether $select is taken into account from the application or not. So, for the consumer it is always the same behavior. It is only possible to specify a $select query for simple properties or for complex properties of the entity type itself. Note that it is not possible to select properties of complex properties.

Select the system query option ($select) to select only a subset of properties which should be returned by the server. The $select can be considered by the application for performance reasons and improvements. The SAP Gateway runtime takes care of applying the $select properly irrespective of whether $select is taken into account from the application or not. So, for the consumer it is always the same behavior. The SAP Gateway runtime always adds the mandatory fields of the entity type (keys, etag, mime type mapping) to the select table, irrespective of whether the key fields are already part of the original OData request or not. Therefore it is ensured that the result of this method can under certain circumstances, for example, be directly applied to an SQL statement without any enrichment from the application developer. It is only possible to specify a $select query for simple properties or for complex properties of the entity type itself according to the OData specification. Note that it is not possible to select properties of complex properties.

In case of $expand the result also contains the selected properties of all included expands. The selected properties of all included expands are necessary for service providers that implement their own expand instead of framework expand to improve performance.

If you only want to have the selected properties including the mandatory fields you use method GET_SELECT_ENTITY_PROPERTIES.

If $select is not used the returned table RT_SELECT will be empty, and this means all entity properties are required.

This method is to be used when the entity is called by a navigation: Source entity type and target entity type are different. ES_KEY_VALUES must be a structure which contains all defined keys including the reference fields for currency or quantity if necessary (that is, key value is an amount). Data of type “Entity Return Structure” can be used because it already contains all keys and reference fields. When convertible field is used as key and the reference field for currency or quantity is needed, the reference field must also be defined as key. Otherwise, the returned key value cannot be converted and remains unchanged.

If a key field is missing in structure ES_KEY_VALUES the key value will not be provided to the provider application. If one or more keys are defined in the Model Provider Class as not convertible the returned key values are not converted. Therefore, this method can be used in general instead of GET_SOURCE_KEYS.

This method is to be used when the entity is called directly: Source entity type and target entity type are the same. ES_KEY_VALUES must be a structure which contains all defined keys including the reference fields for currency or quantity if necessary (that is, key value is an amount). Data of type “Entity Return Structure” can be used because it already contains all keys and reference fields. When convertible field is used as key and the reference field for currency or quantity is needed, the reference field must also be defined as key. Otherwise, the returned key value cannot be converted and remains unchanged.

If a key field is missing in structure ES_KEY_VALUES the key value will not be provided to the provider application. If one or more keys are defined in the Model Provider Class as not convertible the returned key values are not converted. Therefore, this method can be used in general instead of GET_KEYS.

Contrary to GET_SELECT_WITH_MANDTRY_FIELDS, this method only returns the selected properties including the mandatory fields of the current entity.