HP-UX Directory Server 8.1 deployment guide

in the directory is not an all-or-nothing operation, it can be performed over a period of time
and without service disruption.
• Using multiple virtual DIT views for navigation and management allows for more flexible
use of the directory service.
With the functionality provided by virtual DIT views, an organization can use both the old
and new methods to organize directory data without any requirement to place entries at
certain points in the DIT.
• Virtual DIT view hierarchies can be created as a kind of ready-made query to facilitate the
retrieval of commonly-required information.
• Views promote flexibility in working practices and reduce the requirement that directory
users create complex search filters, using attribute names and values that they would
otherwise have no need to know.
The flexibility of having more than one way to view and query directory information allows
end users and applications to find what they need intuitively through hierarchical navigation.
4.4.3 Example of virtual DIT views
The LDIF entries below show a virtual DIT view hierarchy that is based on location. Any entry
that resides below dc=example, dc=com and fits the view description appears in this view,
organized by location.
dn: ou=Location Views, dc=example,dc=com
objectclass: top
objectclass: organizationalUnit
objectclass: nsView
ou: Location Views
description: views categorized by location
dn: ou=Sunnyvale, ou=Location Views, dc=example,dc=com
objectclass: top
objectclass: organizationalUnit
objectclass: nsView
ou: Sunnyvale nsViewFilter: (l=Sunnyvale)
description: views categorized by location
dn: ou=Santa Clara, ou=Location Views, dc=example,dc=com
objectclass: top
objectclass: organizationalUnit
objectclass: nsView
ou: Santa Clara
nsViewFilter: (l=Santa Clara)
description: views categorized by location
dn: ou=Cupertino, ou=Location Views, dc=example,dc=com
objectclass: top
objectclass: organizationalUnit
objectclass: nsView
ou: Cupertino
nsViewFilter: (l=Cupertino)
description: views categorized by location
A subtree search based at ou=Location Views, dc=example, dc=com would return all
entries below dc=example,dc=com which match the filters (l=Sunnyvale), (l=Santa
Clara), or (l=Cupertino). Conversely, a one-level search would return no entries other than
the child view entries because all qualifying entries reside in the three descendant views.
The ou=Location Views, dc=example, dc=com view entry itself does not contain a filter.
This feature facilitates hierarchical organization without the requirement to further restrict the
entries contained in the view. Any view may omit the filter. Although the example filters are
very simple, the filter used can be as complex as necessary.
54 Designing the directory tree