OSF DCE Administration Guide--Core Components

OSF DCE Administration Guide—Core Components
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Option Meaning
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An indication of whether or not each instance of the attribute
type must be unique within the cell (yes =unique; no =not
unique). For example, assume that an instance of attribute
type A is attached to 25 principals in the cell. If attribute type
A is coded as unique, the value of the A attribute for each of
those 25 principals must be different. If it is not coded as
unique, all 25 principals can be assigned the same value for
attribute A. The default is no.
-unique {yes | no}
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A UUID that identifies the attribute type internally. Note that
the name supplied as an argument to the dcecp xattrschema
create command is used to access the attribute type. If you
do not supply a UUID, the system will generate one.
-uuid uuid
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The syntax of the dcecp xattrschema create command is as follows:
xattrschema create attr_name {attr_options}
where:
attr_name Is the fully qualified name of the attribute type to create.
attr_option Is one or more of the options described in Table 32-1.
The following sample command creates the extended attribute type named
employee_num and assigns it an ACL manager of principal and an encoding type of
integer:
dcecp> xattrschema create /.:/sec/xattrschema/employee_num \
-aclmgr principal -encoding integer
Although this sample uses options to supply information, you can use standard dcecp
attribute lists.
Note that you can supply a list of names to create multiple schema entries with one
operation. However, you should be aware that, if the command argument contains more
than one schema name, you cannot specify a UUID attribute and the attributes you
specify are applied to all entries created.
32.2.2 Modifying Attribute Types
Use the dcecp modify command with the -change option to modify attribute types. Only
the aclmgr, applydefs, intercell, trigbind, annotation, and reserved schema type
attributes can be modified.
The syntax of the xattrschema modify command is as follows:
xattrschema modify attr_name -change new_option
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