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Both the Adabas and TIBCO Object Service Broker definitions are required for a complete field definition because the TIBCO Object Service Broker field definition is extended by the Adabas field definition.Some Adabas fields cannot easily be mapped to corresponding TIBCO Object Service Broker definitions. For these fields it is possible to tell Adabas to pass the field to TIBCO Object Service Broker in a specific format. Where the Adabas definition maps directly to a TIBCO Object Service Broker definition, it is best to use an identical mapping since no conversion is needed.If you enter only Adabas field information, the Table Definer fills in the TIBCO Object Service Broker field information based on the Adabas definition.The field segment of the Table Definer screen is divided into two areas. The left side is the Adabas (External Field) definition area, which must map exactly to the original Adabas field definition. The right side is the TIBCO Object Service Broker (Metadata Definition) definition area, which maps how the data is to be presented to the application. These two definitions do not have to be the same.
Specifies the two-character Adabas short name from the Adabas definition. This name is ignored in the generated key fields (ISN, CNT1, and CNT2) but it still must be entered. Specifies the external syntax of the field in the Adabas definition. Refer to TIBCO Object Service Broker Managing External Data for a complete listing of external syntaxes.Where the trailing spaces are not significant, the external field should be defined as X if it is mixed case or C if it contains only uppercase.The external syntax affects the way that searches are resolved. For instance, because Adabas always stores data space filled, syntax V is always returned at the maximum length of the field. Therefore, to find the string ABC in a six byte syntax V field, the predicate must be “ABC ” (the string ABC followed by three spaces). Specifies whether the field can be updated. Various Adabas fields, subdescriptors and superdescriptors, for example, can be read, but not updated.A non-updateable field in a definition must be specified immediately following the key fields. Specifies whether this Adabas field is to be requested from Adabas in a format different from the format in which it is stored in Adabas. Valid entries:Y – The field is requested in the format indicated by the external syntax and length.N – The external syntax describes the format of the field as defined in Adabas.
Specifies the field name. This name must be unique within the table and must be the name referenced in the application. Valid entries: a character string of up to 16 characters beginning with a letter (A - Z) or a special character ($ or #), and continuing with more letters, special characters, digits (0 - 9), or underscore characters (_); for example, DEPTNO. Specifies the TIBCO Object Service Broker semantic data type of the field. Valid entries: C – Count; D – Date; I – Identifier; L – Logical; Q – Quantity; S – String.Refer to Task F: Map Adabas External Data to TIBCO Object Service Broker Types for information on the default mapping of Adabas data types to TIBCO Object Service Broker semantic data types, syntax, and lengths. Specifies the TIBCO Object Service Broker syntax of the field. Valid entries are B, C, F, P, and V. For details, refer to TIBCO Object Service Broker Programming in Rules.Refer to Task F: Map Adabas External Data to TIBCO Object Service Broker Types for information on the default mapping of Adabas data types to TIBCO Object Service Broker semantic data types, syntax, and lengths. Specifies the TIBCO Object Service Broker length of the field, in bytes. For valid entries, refer to TIBCO Object Service Broker Programming in Rules.Refer to Task F: Map Adabas External Data to TIBCO Object Service Broker Types for the default mapping of Adabas data types to TIBCO Object Service Broker semantic data types, syntax, and lengths. Specifies the number of digits to the right of the decimal point. Relevant only for syntax P. Valid entries: Specifies that data retrieved from this table is sorted on this field. Valid entries: A – Ascending sequence; D – Descending sequence.
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Copyright © TIBCO Software Inc. All Rights Reserved |