JAXR Architecture

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JAXR A

RCHITECTURE

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Service Registry, an ebXML registry and repositry with a JAXR provider, is
available as part of the Sun Java Enterprise System.

JAXR Architecture

The high-level architecture of JAXR consists of the following parts:

· A JAXR client: This is a client program that uses the JAXR API to access

a business registry via a JAXR provider.

· A JAXR provider: This is an implementation of the JAXR API that pro-

vides access to a specific registry provider or to a class of registry providers
that are based on a common specification.

A JAXR provider implements two main packages:

javax.xml.registry

, which consists of the API interfaces and classes

that define the registry access interface.

javax.xml.registry.infomodel

, which consists of interfaces that define

the information model for JAXR. These interfaces define the types of
objects that reside in a registry and how they relate to each other. The basic
interface in this package is the

RegistryObject

interface. Its subinter-

faces include

Organization

Service

, and

ServiceBinding

The most basic interfaces in the

javax.xml.registry

package are

Connection

. The

Connection

interface represents a client session with a

registry provider. The client must create a connection with the JAXR pro-
vider in order to use a registry.

RegistryService

. The client obtains a

RegistryService

object from its

connection. The

RegistryService

object in turn enables the client to

obtain the interfaces it uses to access the registry.

The primary interfaces, also part of the

javax.xml.registry

package, are

BusinessQueryManager

, which allows the client to search a registry for

information in accordance with the

javax.xml.registry.infomodel

interfaces. An optional interface,

DeclarativeQueryManager

, allows the

client to use SQL syntax for queries. (The implementation of JAXR in the
Application Server does not implement

DeclarativeQueryManager

BusinessLifeCycleManager

, which allows the client to modify the infor-

mation in a registry by either saving it (updating it) or deleting it.