Aggregating Data Views to Create Virtual Entries

The virtual directory can create purely virtual entries that are built from multiple entries in multiple data views. You define virtual domains that aggregate data from multiple data sources. These sources can be LDAP directories, JDBC compliant data repositories, or flat LDIF files. Data aggregation includes joining data sources with dissimilar attribute names and different DNs.

For example, a directory contains an entry for Adam Brown, cn=Adam Brown. A human resource application requests the salary information for this user, but this information is stored in a separate Oracle database. Directory Proxy Server accesses the Oracle® database for the salary information and uses entry aggregation to add this information dynamically to the entry when it is retrieved by the human resources application. However, for other applications, such as a company address book, this information is not displayed as part of the user entry.

For more information about aggregating data sources, see Join Data Views in Sun Java System Directory Server Enterprise Edition 6.0 Reference.