HP 3000 Manuals HP 3000 Manuals
SDGetRelVarAttr
Retrieves the variable length attribute value for a relationship.
Syntax
SDGetRelVarAttr (Dcb,RelationshipType,RelationshipClass,EntityList,
Attribute,RetrievalID,Value,Status)
Parameters
Dcb Required input; type = DcbType
This parameter passes information about the
dictionary to this intrinsic. It is
initialized by the SDOpen intrinsic.
RelationshipType Required input; type = RelationshipTypeList
This parameter specifies the relationship type
of the relationship.
RelationshipClass Required input; type = NameOrNumberType
This parameter specifies the class of the
relationship type. Blanks or a 0 may be
specified for this parameter when the entity
types specified in the RelationshipType
parameter uniquely identify a relationship
type.
EntityList Required input; type = EntityListType
This parameter specifies the relationship whose
variable length attribute text will be
retrieved.
Attribute Required input; type = NameOrNumberType
This parameter specifies the variable length
attribute whose value is to be retrieved.
RetrievalID Required input; Output; type = RetrievalIDType
This parameter is used internally to pass
information between multiple calls of this
intrinsic, to retrieve all the attribute value
text for this relationship.
To find the first line of text, initialize the
first four bytes of this parameter to a binary
zero. To find additional lines of text, call
this intrinsic once for each line of text to be
returned.
Value Output; type = ValueLine
This parameter returns 80 characters of the
attribute value text per successful call of
this intrinsic. If the last line of text
returned is a partial line, it will be right
blank filled.
Status Output; type = StatusType
This parameter contains information indicating
the success or failure of the intrinsic call.
This information is detailed in Table Table
3-1, located in Chapter 3 of this manual.
If this intrinsic is successful, the Status
parameter contains the following information,
in addition to the description contained in
Table Table 3-1.
-------------------------------------------------
| | |
| Bytes | Contain |
| | |
-------------------------------------------------
| | |
| 25 - 28 | Total number of 80 byte buffers of |
| | this variable attribute for this |
| | relationship. Valid when input |
| | RetrievalID = 0. |
| | |
-------------------------------------------------
Discussion
The following restrictions apply when using this intrinsic:
1. Open mode--The dictionary must be opened in Shared Read mode,
Shared Read-Only mode, Shared Update mode, or Exclusive Update
mode.
2. Security--The current scope must be either the Dictionary
Administrator scope or a scope with at least Read access to the
relationship.