Programming Jabber

Component Instance: xdb

The xdb component, described by the configuration XML shown in Example 4-10 and shown in diagram form in Figure 4-8, provides data storage for the server—it is the XML Database.

Figure 4-8. Diagram view of xdb component instance

All storage requirements by components connected to the Jabber backbone can be fulfilled by an xdb component. In normal configurations, there is a single instance, although it is possible to have more than one, each handling separate areas of storage, possibly using different storage mechanisms.

Example 4-10. jabber.xml configuration for the xdb component instance

<xdb id="xdb">

  <host/>

  <load>
    <xdb_file>./xdb_file/xdb_file.so</xdb_file>
  </load>

  <xdb_file xmlns="jabber:config:xdb_file">
    <spool><jabberd:cmdline flag='s'>./spool</jabberd:cmdline></spool>
  </xdb_file>

</xdb>