The access operator can be used to integrate new sources into Odysseus. Further information can be found in the Documentation to the Access Operator Framework.
Remark: There is no need to define an access operator as view (:=) or source (::=). Each access operator is automatically a source with name source. For most cases the assignment is only for parsing purposes (see example below).
source:The name of the access operator. Remark: This name must be different to all source names and all view or stream definitions! A new source will be added to the data dictionary automatically.
wrapper:In Odysseus the default wrappers are GenericPush and GenericPull
transport:The transport defines the transport protocol to use.
protocol:The protocol parameter defines the application protocol to transform the processing results.
datahandler:This parameter defines the transform of the single attributes of the processing results.
options:Transport protocol and application protocol depending options
schema:The output schema of the access operator (may depend on the protocol handler)
metaattribute: What kind of meta data should the source provide.
There are some options that are not used by transformation:
BaseTimeUnit: Timeunit used for long based input start/endtimestamps (be careful, the option is case sensitive). The TimeUnits are case sensitive as well, e.g. SECONDS (https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/TimeUnit.html)