Integration - eXist: A NoSQL Database and Application Development Platform - page 351

Example 13-13. Accessing a remote XML:DB collection

Collection collection =
DatabaseManager . getCollection (
"xmldb:exist://localhost:8080/exist/xmlrpc/db" ,
"admin" , "" );

Resource s
A Resource in the XML:DB API maps onto a document in the eXist database.
eXist's implementation of the XML:DB API allows you to work with both its
XML and binary documents. See Example 13-14 .

Example 13-14. Retrieving a Resource from an XML:DB remote collection

Resource resource = collection . getResource ( "some-document.xml" );

Service s
A Service in the XML:DB API allows you to perform extended operations
against the database. The XML:DB API provides services for collection manage‐
ment, XPath/XQuery, and XUpdate services. In addition, eXist provides some
eXist-specific XML:DB services for user management, database instance manage‐
ment, and index queries. You retrieve a Service from a connection to a Collec
tion by specifying its name and version. See Example 13-15 and Table 13-7 .

Example 13-15. Obtaining a query service from an XML:DB remote collection

XPathQueryService queryService =
collection . getService ( "XPathQueryService" , "1.0" );

Table 13-7. eXist XML:DB services

Service name(s) Java class (org.exist.xmldb) Description

XML:DB XPath Service. In
eXist, XQuery is also offered.

XPathQueryService
XQueryService

RemoteXPathQueryService

XML:DB Collection
Management Service.

CollectionManagementService
CollectionManager

RemoteCollectionManagementSer
vice

XML:DB XUpdate Service.

XUpdateQueryService RemoteXUpdateQueryService

eXist User Management
Service extension for
XML:DB.

UserManagementService RemoteUserManagementService