With this subprogram you can perform the following task:
Read and maintain all documentation objects defined in Predict (predefined and user-defined).
This section covers the following topics:
Enter the command SYSEXT at the Natural
prompt. This command invokes the library SYSEXT, which contains various Natural
user exits. The following is provided for each user exit:
a user exit subprogram (in object form)
a sample program (in source form) of how to invoke the subprogram
a text member explaining the function of the user exit
several example programs that explain in detail how to read and maintain documentation objects.
A screen similar to the one below will appear. Page to subprogram USR3005N if necessary.
15:24:04 ***** NATURAL SYSEXT UTILITY ***** 2007-05-31
User HNO - Menu - Library SYSEXT
Cmd Source Interface Comment Prod
_ USR2073P USR2073N Ping or terminate an RPC server RPC
_ USR2074P USR2074N Set new passsword for NSC user in RPC context RPC
_ USR2075P USR2075N Terminate EntireX Broker Service RPC
_ USR3001P USR3001N List Roll Server Directory Entries NAT
_ USR3002P USR3002N Delete Roll Server Directory Entries NAT
_ USR3004P USR3004N Clear internal Fast Locate Table NAT
_ USR3005P USR3005N Process documentation objects PRD
|
Enter a question mark in the Cmd column to display a list of possible actions. Enter D in this column to display a description of this subprogram.
<!ELEMENT Predict (Request | Result)>
<!ATTLIST Predict Version CDATA #IMPLIED>
<!ELEMENT Request (Select | Update | Purge | Add | Lock | Unlock)>
<!ELEMENT Select (Search, Return)>
<!ELEMENT Update (Search, Set)>
<!ELEMENT Purge (Search)>
<!ELEMENT Add ((Object-Type | Link), Set)>
<!ELEMENT Lock (Search)>
<!ELEMENT Unlock (Search)>
<!ELEMENT Result (Row*, Message)>
<!ELEMENT Message EMPTY>
<!ATTLIST Message number CDATA #REQUIRED
text CDATA #REQUIRED
type CDATA #REQUIRED
New_Object_ID CDATA #IMPLIED
invalid-attribute CDATA #IMPLIED
index-in-invalid-attribute CDATA #IMPLIED
additional-msg-number CDATA #IMPLIED
additional-msg-text CDATA #IMPLIED>
<!ELEMENT Search ((Object-Type | Link | Multi-Link ), Attribute*)>
<!ATTLIST Search extract CDATA #IMPLIED
from-date CDATA #IMPLIED
key CDATA #IMPLIED
key2 CDATA #IMPLIED
key3 CDATA #IMPLIED
key4 CDATA #IMPLIED
key5 CDATA #IMPLIED
key-not CDATA #IMPLIED
key-op (AND | OR) #IMPLIED
owner CDATA #IMPLIED
scan-value CDATA #IMPLIED
scan-abstracts (Y | N) #IMPLIED
scan-desc (Y | N) #IMPLIED
scan-rules (Y | N) #IMPLIED
scan-ignore-case (Y | N) #IMPLIED
scan-obj-id (Y | N) #IMPLIED
scan-absolute (Y | N) #IMPLIED>
<!ELEMENT Return (Field*)>
<!ATTLIST Return Sort CDATA #IMPLIED
Sort-Direction (A | D) #IMPLIED
Limit CDATA #IMPLIED>
<!ELEMENT Set (Row*)>
<!ELEMENT Object-Type EMPTY>
<!ATTLIST Object-Type value CDATA #REQUIRED
default CDATA #IMPLIED>
<!ELEMENT Link EMPTY>
<!ATTLIST Link source-object-type CDATA #REQUIRED
association CDATA #REQUIRED
direction (ACTIVE | PASSIVE) #REQUIRED>
<!ELEMENT Multi-Link EMPTY>
<!ATTLIST Multi-Link source-object-type CDATA #REQUIRED
association CDATA #REQUIRED
direction (ACTIVE | PASSIVE) #REQUIRED
default CDATA #IMPLIED>
<!ELEMENT Attribute EMPTY>
<!ATTLIST Attribute name NMTOKEN #REQUIRED
value CDATA #REQUIRED
value2 CDATA #IMPLIED
value3 CDATA #IMPLIED
value4 CDATA #IMPLIED
value99 CDATA #IMPLIED
value100 CDATA #IMPLIED
display-only CDATA #IMPLIED
restrict-to CDATA #IMPLIED>
<!ELEMENT Field EMPTY>
<!ATTLIST Field name NMTOKEN #REQUIRED>
<!ELEMENT Row (Attribute | Structure)*>
<!ELEMENT Structure (Group* | Attribute*)>
<!ATTLIST Structure name NMTOKEN #REQUIRED
display-only CDATA #IMPLIED>
<!ELEMENT Group (Attribute*)>
Input to and response from the API uses XML documents. These XML documents must comply with the rules of the Predict DTD (document type definition) above.
Input to the API uses documents of the type Request while a response from the API uses documents of the type Result as defined in the first element of the Predict DTD. All data passed is represented as attribute(s) of an element. This method is used to reflect the dynamic extension of the Predict metastructure.
To analyze the result, you might use the copy code PARSER_X which is delivered in library SYSEXXT. The appropriate local data area PARSER-X also exists in library SYSEXXT.
Search all Adabas files having the owner XYZ and a name starting with EMP and return some attributes.
<Predict>
<Request>
<Select>
<Search>
<Object-type value="FILE-A" Owner="XYZ"/>
<Attribute name="ID" value="EMP*"/>
</Search>
<Return>
<Field name="ID"/>
<Field name="CREATED-ON"/>
<Field name="CREATED-BY"/>
<Field name="CHANGED-ON"/>
<Field name="CHANGED-BY"/>
<Field name="ABSTRACT"/>
</Return>
</Select>
</Request>
</Predict>
The select request is used to read data from Predict. The
<Search> element comprises a specification of
the data to be retrieved (in the above example <Object-type
value="FILE-A"/>) and, if needed, a set of common search attributes
(Owner="XYZ", keyword, etc.) and optional additional
search conditions formulated via the
<Attribute> element (in the example
<Attribute name="ID" value="EMP*"/>).
All attributes that are to be returned in the result must be
contained in the <Return> element. References
to attributes not belonging to the addressed object type or association will
not result in an error message but are simply skipped.
The result may look like this:
<Predict>
<Result>
<Row>
<Attribute Name="ID" Value="EMPLOYEES-FILE"/>
<Attribute Name="CREATED-ON" Value="199910130916489"/>
<Attribute Name="CREATED-BY" Value="PRD411"/>
<Attribute Name="CHANGED-ON" Value="199911161626520"/>
<Attribute Name="CHANGED-BY" Value="NATQA"/>
<Structure Name="Abstract">
<Attribute Name="Abstract-line" Value="CONTAINS UNIQUE DESCRIPTIONS"/>
<Attribute Name="Abstract-line" Value="OF EMPLOYEES OF AN INTERN."/>
<Attribute Name="Abstract-line" Value="ENTERPRISE (COMPAR. TO SAG)"/>
</Structure>
</Row>
<Row>
<Attribute Name="ID" Value="EMPLOYEES-ABOVE"/>
<Attribute Name="CREATED-ON" Value="199807071515436"/>
<Attribute Name="CREATED-BY" Value="NATQA"/>
<Attribute Name="CHANGED-ON" Value="199807141258276"/>
<Attribute Name="CHANGED-BY" Value="RRI"/>
<Structure Name="Abstract">
<Attribute Name="Abstract-line" Value="This file was incorporated"/>
<Attribute Name="Abstract-line" Value="from FDT on 98-07-07"/>
</Structure>
</Row>
<Message number="2517" text="DIC2517 Function TERMINATED SUCCESSFULLY." type="Success"/>
</Result>
</Predict>
The type attribute of the
<Message> tag indicates whether the request
could be successfully processed. Every object in the result document is
delimited by a <Row> element.
You specify an object type with the
<Object-type> element of the
<Search> element. Additional search conditions
can be given with the <Attribute> elements of
the <Search> element, by specifying the
attribute ID and the corresponding search value. For alphanumeric attributes,
asterisk notation is allowed to search for all objects that have an attribute
value which starts with the given search value.
Attribute values are transferred as strings. Both the quote character and the double-quote character can be used as string delimiters. Quotes within values must be coded as "'".
All replacements:
| & | & |
|---|---|
| ' | ' |
| " | " |
| < | < |
| > | > |
With the <Return> element, the
IDs of implicitly or explicitly defined attributes are specified, for which the
values are to be returned. Only attributes belonging to the given object type
may be specified, the others are ignored.
Note:
When reading or modifying periodic groups, multiple value
fields or simple groups additional rules should be considered. Special
restrictions apply for fields with format logical or numeric. See
Object Type #ATTRIBUTE for
further information.
To allow updating or deleting of an object, it must first be locked. An update request does not unlock the object. This has to be requested explicitly. A successful delete request will also remove the lock for the object, whereas an unsuccessful delete request will keep the lock.
Links and multiple links are considered to be attributes of the parent object. This implies that the parent object of a link or multiple link has to be locked before the link/multiple link can be modified.
Update and delete requests may only refer to one object at a time. That means that the result of the search operation consists only of one object.
Files have an attribute named Element
List. With this attribute, the base attributes of all fields
belonging to a file are transferred. There is no Add function for fields of a
file. To add new fields to a file, the complete element list has to be
updated.
There is no explicit rename request. Renaming must be done by updating the attribute ID. The object must be unlocked with the new ID.
To add exactly one link to a link list, use the
<Add> element in your search request.
To delete exactly one link from a link list, use the
<Purge> element in your search request.
If you want to add or modify the association attributes of only
a single link in a link list by using the
<Update> element, then your search request
must include a fully qualified attribute of type
Target-Object.
If you want to modify the complete link list of the associated
object (including all association attributes) by using the
<Update> element, then a fully qualified
attribute of type Target-Object is not necessary
in your search request.
<Predict>
<Request>
<Add>
<Link source-object-type="SYSTEM" association="PROGRAM" direction="ACTIVE"/>
<Set>
<Row>
<Attribute name="SOURCE-OBJECT" value="SYSTEM1"/>
<Attribute name="TARGET-OBJECT" value="PROGRAM1"/>
</Row>
</Set>
</Add>
</Request>
</Predict>
<Predict>
<Request>
<Update>
<Search>
<Multi-Link source-object-type="DATABASE-A" association="FILE"
direction="ACTIVE"/>
<Attribute name="SOURCE-OBJECT" value="DB180"/>
<Attribute name="TARGET-OBJECT" value="CHD-A-FORMATE"/>
</Search>
<Set>
<Row>
<Attribute Name="MAX-ISN" Value="800"/>
<Attribute Name="ASSO-DEVICE-TYPE" Value="3390"/>
<Attribute Name="DATA-DEVICE-TYPE" Value="3390"/>
<Attribute Name="ASSOPFAC" Value="91"/>
<Attribute Name="CIPHERED" Value="Y"/>
</Row>
</Set>
</Update>
</Request>
</Predict>
Fields can only be added by modifying the element list of a
file. Modifications to the field attributes
type, level,
format and length
can also be made in the element list only.
The element list has an attribute named
EL-UNIQUE-ID. When updating the element list,
the value of this attribute indicates whether a field has been added, modified
or renamed.
<Predict>
<Request>
<Add>
<Object-type value='PROGRAM-P'/>
<Set>
<Row>
<Attribute name='ID' value='*GENERATE*'/>
<Attribute Name='MEMBER' Value='OGEN' />
<Attribute Name='LIBRARY' Value='OGENTEST' />
<Attribute Name='FUSER-FNR' Value='54' />
<Attribute Name='FUSER-DBNR' Value='180' />
<Attribute Name='LANGUAGE' Value='N' />
</Row>
</Set>
</Add>
</Request>
</Predict>
When creating new documentation objects it is now possible to
specify ID=’*GENERATE*’ in the Add request. In
this case Predict will generate an ID for the new object.
This allows applications to store documentation objects in Predict which will be retrieved by criteria other than the object ID.
The user exit U-OGEN is delivered in source form, that allows the user to supply the ID.
With this version it is not possible to change the sub-type of an object (e.g. change a conceptual file into an Adabas file). It is not possible to maintain the Predict metadata.
Predict security checks are done as usual.
The Predict user exits U-ACMR, U-DESC, U-MNT, U-MNT1, U-OW, U-PUR and U-SEC are invoked as defined.
The following global attributes are available for objects of all object types defined on the FDIC. The notation (S) after an attribute name means that this attribute can be used in a search condition:
ID (S)
CREATED-BY
CREATED-ON
CHANGED-BY
CHANGED-ON
ABSTRACT (representing a structure with the attribute ABSTRACT-LINE)
KEYWORDS (representing a structure with the attribute KEYWORD)
OWNERS (representing a structure with the attribute OWNER)
DESCRIPTION (representing a structure with the attribute DESCRIPTION-LINE)
OBJECT-STATUS (possible values are OBJECT, DUMMY and PLACEHOLDER)
#OBJECT-TYPE. The value of this attribute represents the specialization of the object type (for example, "FILE-A"). If there is no specialization, the value of the base type is represented.
#BASE-TYPE. The value of this attribute represents the name of the base type (for example "FILE").
#OBJECT-TITLE. The value of this attribute represents the title of the specialization of the object type (for example, "Adabas file").
#BASE-TITLE. The value of this attribute represents the title of the base type (for example, "File").
To provide attribute definitions specific to an object type or to an association, the special object type #ATTRIBUTE exists. The notation (S) after an attribute name means that this attribute can be used in a search condition.
Objects of the type #ATTRIBUTE can have the following attributes:
ID (S)
TITLE
NAMESPACE (S)
NAMESPACETYPE (S) (either #OT-DEFINITION or #ASSOCIATION)
NAMESPACE-START-OBJECTTYPE (S) (only for Namespacetype="#ASSOCIATION")
NAMESPACE-DIRECTION (S) (only for Namespacetype="#ASSOCIATION")
BELONGS-TO-SCREEN (S)
IS-SCREEN (S) (Valid values: Y or N)
LEVEL (Used to group attributes)
FORMAT
| A | Alphanumeric |
| N | Numeric |
| D | Date |
| T | Time |
| L | Logic |
| X | Literal |
| E | Text |
| F | Frame (Group frame, if level = 1, it denotes a tab/screen) |
| S | Structure |
| M | Field length with unit specification |
LENGTH
MULTIPLE (N5)
SEARCHABLE (S) (Indicates that this attribute can be used in search conditions.)
<Predict>
<Request>
<Select>
<Search>
<Object-type value="#ATTRIBUTE"/>
<Attribute name="NAMESPACETYPE" value="#OT-DEFINITION"/>
<Attribute name="NAMESPACE" value="SYSTEM-A"/>
</Search>
<Return>
<Field name="TITLE"/>
<Field name="ID"/>
<Field name="FORMAT"/>
<Field name="LENGTH"/>
</Return>
</Select>
</Request>
</Predict>
The result may look like this:
<Predict>
<Result>
<Row>
<Attribute Name="TITLE" Value="Implementation Pointer"/>
<Attribute Name="ID" Value="IMPLEMENTATION-POINTER"/>
<Attribute Name="FORMAT" Value="F"/>
<Attribute Name="LENGTH" Value="0"/>
</Row>
<Row>
<Attribute Name="TITLE" Value="Library"/>
<Attribute Name="ID" Value="LIBRARY"/>
<Attribute Name="FORMAT" Value="A"/>
<Attribute Name="LENGTH" Value="8"/>
</Row>
<Row>
<Attribute Name="TITLE" Value="User system Fnr"/>
<Attribute Name="ID" Value="FUSER-FNR"/>
<Attribute Name="FORMAT" Value="N"/>
<Attribute Name="LENGTH" Value="5"/>
</Row>
<Row>
<Attribute Name="TITLE" Value="User system DBnr"/>
<Attribute Name="ID" Value="FUSER-DBID"/>
<Attribute Name="FORMAT" Value="N"/>
<Attribute Name="LENGTH" Value="5"/>
</Row>
<Row>
<Attribute Name="TITLE" Value="Type"/>
<Attribute Name="ID" Value="SUBTYPE"/>
<Attribute Name="FORMAT" Value="A"/>
<Attribute Name="LENGTH" Value="1"/>
</Row>
<Message number="2517" text="Function TERMINATED SUCCESSFULLY." type="Success"/>
</Result>
</Predict>
If an attribute defined with the format S (Structure) or F
(Frame) includes more than one attribute and Multiple has a value
> 0, then it is transferred with the
<Structure> element and the included
attributes have to be grouped with the <Group>
element. The structure represents a periodic group. The sequence of the
<Group> elements represents the
occurrences.
If an attribute defined with the format S (Structure) or F
(Frame) includes exactly one attribute and Multiple has a value
> 0, then it is transferred with the
<Structure> element and no
<Group> elements are transferred. The
structure or the included attribute represents a multiple value field.
If an attribute defined with the format S (Structure) or F
(Frame) includes more than one attribute and Multiple has the
value 0, it is transferred with the
<Structure> element and the included
attributes are not grouped. The structure represents a simple group.
Values for attributes with the format L (Logic) are transferred as string with content 'Y' or 'N'.
Numeric values with decimal precision (Format N and M) are transferred without a decimal point. For example, the value 75.3 for an attribute defined with Length 5 and Precision 1 is transferred as '753'. For an attribute defined with Length 5 and Precision 2, the value '7530' has to be specified.
To provide all object types defined on the FDIC, the special object type #OT-DEFINITION exists. The notation (S) after an attribute name means that this attribute can be used in a search condition.
Objects of type #OT-DEFINITION can have the following attributes:
ID (S)
TITLE
TYPE (S) (Object type or specialization type. If the value "ALLOBJECTTYPE" is used, the result list includes the object type Field.)
CREATED-BY
CREATED-ON
CHANGED-BY
CHANGED-ON
INSTANCE-EXIST (Indicates if objects of the specified type exist.)
Objects of type #OT-DEFINITION have an indicator named "Type" that shows whether this object is a definition of a base object type (e.g. Database, File, Program, etc.) or of a specialization type (e.g. Adabas database, DB2 database, Adabas file, DB2 table, Subprogram, Subroutine, etc.).
Base object types have only those attributes common to all objects of this type. Specialization types additionally have those attributes that are specific to objects of the specified sub-type.
<Predict>
<Request>
<Select>
<Search>
<Object-type value="#OT-DEFINITION"/>
<Attribute name="TYPE" value="OBJECTTYPE"/>
</Search>
<Return>
<Field name="TITLE"/>
<Field name="ID"/>
</Return>
</Select>
</Request>
</Predict>
The result may look like this:
<Predict>
<Result>
<Row>
<Attribute Name="TITLE" Value="Keyword"/>
<Attribute Name="ID" Value="KEYWORD"/>
</Row>
<Row>
<Attribute Name="TITLE" Value="Network"/>
<Attribute Name="ID" Value="NETWORK"/>
</Row>
.
.
.
<Row>
<Attribute Name="TITLE" Value="File"/>
<Attribute Name="ID" Value="FILE"/>
</Row>
<Message number="2517" text="Function terminated successfully." type="Success"/>
</Result>
</Predict>
To provide all associations defined on the FDIC, the special object type #ASSOCIATION exists.
Objects of type #ASSOCIATION can have the following attributes:
ID (S)
Title
SOURCE-OBJECT-TYPE (S)
SOURCE-TYPE-TITLE
TARGET-OBJECT-TYPE (S)
TARGET-TYPE-TITLE
DIRECTION (S) (Indicates the direction of the association. Valid values: ACTIVE or PASSIVE.)
MANDATORY (S)
CREATED-BY
CREATED-ON
CHANGED-BY
CHANGED-ON
ABSTRACT
ADDITIONAL-ATTRIBUTES (Valid values: Y or N.)
MAINTAINABLE (by User)
MULTI-LINKS-POSSIBLE
<Predict>
<Request>
<Select>
<Search>
<Object-type value="#ASSOCIATION"/>
<Attribute name="SOURCE-OBJECT-TYPE" value="FILE-A"/>
<Attribute name="DIRECTION" value="ACTIVE"/>
</Search>
<Return>
<Field name="TITLE"/>
<Field name="ID"/>
<Field name="TARGET-OBJECT-TYPE"/>
<Field name="TARGET-TYPE-TITLE"/>
</Return>
</Select>
</Request>
</Predict>
The result may look like this:
<Predict>
<Result>
<Row>
<Attribute Name="TITLE" Value="Has Fields"/>
<Attribute Name="ID" Value="ELEMENT"/>
<Attribute Name="TARGET-OBJECT-TYPE" Value="ELEMENT"/>
<Attribute Name="TARGET-TYPE-TITLE" Value="Field"/>
</Row>
<Row>
<Attribute Name="TITLE" Value="Linked to VE"/>
<Attribute Name="ID" Value="LINKED_TO_VE"/>
<Attribute Name="TARGET-OBJECT-TYPE" Value="VERIFICATION"/>
<Attribute Name="TARGET-TYPE-TITLE" Value="Verification"/>
</Row>
<Row>
<Attribute Name="TITLE" Value="Has Direct Views"/>
<Attribute Name="ID" Value="HAS_DIRECT_VIEWS"/>
<Attribute Name="TARGET-OBJECT-TYPE" Value="FILE"/>
<Attribute Name="TARGET-TYPE-TITLE" Value="File"/>
</Row>
<Row>
<Attribute Name="TITLE" Value="Has Sequence EL"/>
<Attribute Name="ID" Value="HAS_SEQUENCE_EL"/>
<Attribute Name="TARGET-OBJECT-TYPE" Value="ELEMENT"/>
<Attribute Name="TARGET-TYPE-TITLE" Value="Field"/>
</Row>
<Message number="2517" text="Function terminated successfully." type="Success"/>
</Result>
</Predict>
To allow searching for links between objects, the
<Link> and
<Multi-Link> elements exist.
Links can have the following attributes:
SOURCE-OBJECT (S)
TARGET-OBJECT (S)
SOURCE-OBJECT-TYPE
SOURCE-TYPE-TITLE
TARGET-TYPE-TITLE
TARGET-OBJECT-TYPE
TARGET-OBJECT-STATUS
MULTIPLE-LINK (Valid values: Y or N. Indicates whether additional attributes are provided via link or multi-link.)
MULTIPLE-ALLOWED (Valid values: Y or N. Indicates whether a child object can be linked more than once to the same parent object via the same association. Currently used for FI-ADA only.)
In addition, links from fields have the following searchable attribute:
SOURCE-OBJECT-NAMESPACE (S)
In addition, links to fields have the following searchable attribute:
TARGET-OBJECT-NAMESPACE (S)
Furthermore, links can have additional attributes that have been defined for the corresponding association.
When searching for links, if the name of a specialization is used as input for SOURCE-OBJECT-TYPE, than the sub-type is ignored and the base object type is used.
For example, it is possible to search for links to files from the conceptual database A-C with the following search request:
<Search> <Link source-object-type value="DATABASE-A" association="FILE" Direction="ACTIVE"/> <Attribute name="SOURCE-OBJECT" value="A-C"/> </Search>
<Predict>
<Request>
<Select>
<Search>
<Link source-object-type="SYSTEM-C" association="PROGRAM" direction="ACTIVE"/>
<Attribute name="SOURCE-OBJECT" value="SAG-PRD-OTHER-PGMS"/>
</Search>
<Return>
<Field name="TARGET-OBJECT"/>
<Field name="TARGET-OBJECT-STATUS"/>
<Field name="TARGET-OBJECT-TYPE"/>
<Field name="TARGET-TYPE-TITLE"/>
<Field name="MULTIPLE-LINK"/>
<Field name="MULTIPLE-ALLOWED"/>
</Return>
</Select>
</Request>
</Predict>
The result may look like this:
<Predict>
<Result>
<Row>
<Attribute Name="TARGET-OBJECT" Value="SAG-PRD-SUMPRDEX"/>
<Attribute Name="TARGET-OBJECT-STATUS" Value="OBJECT"/>
<Attribute Name="TARGET-OBJECT-TYPE" Value="PROGRAM-N"/>
<Attribute Name="TARGET-TYPE-TITLE" Value="Subprogram"/>
<Attribute Name="MULTIPLE-LINK" Value="N"/>
<Attribute Name="MULTIPLE-ALLOWED" Value="N"/>
</Row>
<Row>
<Attribute Name="TARGET-OBJECT" Value="SAG-ADABAS"/>
<Attribute Name="TARGET-OBJECT-STATUS" Value="OBJECT"/>
<Attribute Name="TARGET-OBJECT-TYPE" Value="PROGRAM-E"/>
<Attribute Name="TARGET-TYPE-TITLE" Value="External program"/>
<Attribute Name="MULTIPLE-LINK" Value="N"/>
<Attribute Name="MULTIPLE-ALLOWED" Value="N"/>
</Row>
<Message number="2517" text="Function terminated successfully." type="Success"/>
</Result>
</Predict>
Multi-links can have the following attributes:
SOURCE-OBJECT (S)
TARGET-OBJECT (S)
SOURCE-TYPE-TITLE
TARGET-TYPE-TITLE
CREATED-BY
CREATED-ON
CHANGED-BY
CHANGED-ON
Note:
Multi-links must have one additional identifying attribute
of the associated link. For example, the link Has files for the object
type Database (FI-ADA) has the additional identifying attribute P-FNR.