Framework EDI Reference. Constants
Schemas Option ID Constants

Schemas Option ID Constants specify the feature to enable and disable in the schemas object. 

• OptSchemas_SelectForward (0) – The same as EnableSelectForward property in the ediSchemas object.  If there was no exact match to the version requested by the document, this option enables selection of an implementation guideline with a later version.  Defaults as enabled (1).

  For example, if the option is enabled and if the functional group has version 4010, the schema having version 4020 is used instead -- only if the schema version 4010 was not available, and the next available higher version number was 4020; if the option is disabled, an error is generated.

• OptSchemas_StandardReference (1) – The same as EnableStandardReference property in the ediSchemas object.  By default, FREDI selects an external implementation guideline first (e.g. SEF) before using implementation guidelines in the standard reference library.  If none of the external implementation guidelines matches the version requested by the document, this option enables selection of a schema in the standard reference library.  Defaults as enabled (1).

  Note that the standard reference library only has a fixed set of versions that it supports for ASC/X12 and UN/EDIFACT.  It is possible that it still may not have the version requested.  

• OptSchemas_VersionRestrict (2) – This option, if enabled, prohibits the ability to use any of the schemas that has a version that is not the same as that requested by the document.  Defaults as disabled (0).

  For an exact match, the version, release and industry in the document must match the version, release and industry of the schema.

• OptSchemas_SetOnDemand (3) - This option allows the ability to import only the transaction set/message, specified in the document, from the schema.  If this option is disabled, the entire schema is imported when FREDI encounters the need to extract information from the schema.  Currently, this option applies only to Standard Exchange Format (SEF) external file schemas.  Defaults as disabled (0).

  For example, if an ASC/X12 document only has transaction set 850, then only the definition of transaction set 850 is imported from the SEF file schema instead of importing the entire schema.
  

• OptSchemas_NoSchemas (4) - This option indicates that no schemas are to be used.  Enabling this option allows the client to specify no external schemas to use, as well as having the Standard Reference Library disabled; if not enabled, an error will generate otherwise.  Translating a document without a schema disables any syntax validation and is not guaranteed to succeed all the time.  Defaults as disabled (0).
  

• OptSchemas_UseBuiltInCtrlSegs (5) - This option indicates that the built-in control segments should be used as an option to select an implementation guideline.  The built-in control segments and service segments are the defined implementation of the controlling standard at a minimum.  When the version requested is not found in the external guidelines nor the Standard Reference Library, the built-in control/service segments will be used as a fall back.  Defaults as enabled (1).

The Option property in the ediSchemas object enable and disable the featured described by the constants.  The feature is enabled if set to 1; disabled if set to 0.