1. Developing SOA Applications with Oracle SOA Suite
  2. Using the Oracle Mediator Service Component
  3. Using Oracle Mediator Error Handling
  4. Introduction to Mediator Error Handling
  5. Error Groups in Mediator

Error Groups in Mediator

You can specify an action for an error type or error group while defining the conditions in a fault policy. In the previous examples, medns:mediatorFault indicates that the error is a Mediator error, whereas medns:TYPE_FATAL_MESH refers to an error group. An error group consists of one or more child error types. TYPE_ALL is an error group that contains all Mediator errors.

The following list describes various error groups contained in the TYPE_ALL error group:

  • TYPE_DATA: Contains errors related to data handling.

    • TYPE_DATA_ASSIGN: Contains errors related to data assignment.

    • TYPE_DATA_FILTERING: Contains errors related to data filtering.

    • TYPE_DATA_TRANSFORMATION: Contains errors that occur during a transformation.

    • TYPE_DATA_VALIDATION: Contains errors that occur during payload validation.

  • TYPE_METADATA: Contains errors related to Mediator metadata.

    • TYPE_METADATA_FILTERING: Contains errors that occur while processing the filtering conditions.

    • TYPE_METADATA_TRANSFORMATION: Contains errors that occur while getting the metadata for a transformation.

    • TYPE_METADATA_VALIDATION: Contains errors that occur during validation of metadata for Mediator (.mplan file).

    • TYPE_METADATA_COMMON: Contains other errors that occur during the handling of metadata.

  • TYPE_FATAL: Contains fatal errors that are not easily recoverable.

    • TYPE_FATAL_DB: Contains database-related fatal errors, such as a Datasource not found error.

    • TYPE_FATAL_CACHE: Contains Mediator cache-related fatal errors.

    • TYPE_FATAL_ERRORHANDLING: Contains fatal errors that occur during error handling such as Resubmission queues not available.

    • TYPE_FATAL_MESH: Contains fatal errors from the Service Infrastructure such as Invoke service not available.

    • TYPE_FATAL_MESSAGING: Contains fatal messaging errors arising from the Service Infrastructure.

    • TYPE_FATAL_TRANSACTION: Contains fatal errors related to transactions such as Commit can't be called on a transaction which is marked for rollback.

    • TYPE_FATAL_TRANSFORMATION: Contains fatal transformation errors such as an error occurring because of the XPath functions used in a transformation.

  • TYPE_TRANSIENT: Contains transient errors that can be recovered on a retry.

    • TYPE_TRANSIENT_MESH: Contains errors related to the Service Infrastructure.

    • TYPE_TRANSIENT_MESSAGING: Contains errors related to JMS such as enqueuing and dequeuing.

  • TYPE_INTERNAL: Contains internal errors.