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OnewayListener

OnewayListener

javax.xml.messaging

JAXM 1.1; JWSDP 1.0

public interface OnewayListener {

// Public Instance Methods

public abstract void onMessage(javax.xml.soap.SOAPMessage message);
}

The OnewayListener interface is implemented by a JAXMServlet subclass that receives a SOAP message but does not wish to return an immediate response. The onMessage( ) method is called whenever a message is received and is provided with a SOAPMessage object created from that message as its only argument. The implementation may handle the message immediately or defer its processing to a more convenient time.

A JAXM client that implements this interface and wishes to return a reply message must create the message using the MessageFactory of the JAXM profile that it is using, set the destination address using a profile-specific method, and then call the ProviderConnection send( ) method. See the description of the JAXMServlet for information on obtaining an appropriate MessageFactory .

ProviderConnection

javax.xml.messaging

JAXM 1.1; JWSDP 1.0

public interface ProviderConnection {

// Public Instance Methods

public abstract void close(  ) throws JAXMException; 
    public abstract javax.xml.soap.MessageFactory createMessageFactory(String profile) throws JAXMException; 
    public abstract ProviderMetaData getMetaData( ) throws JAXMException;
    public abstract void send(javax.xml.soap.SOAPMessage message) throws JAXMException;
}

A ProviderConnection object represents a connection path between a JAXM client and a JAXM provider. An instance of this class can be obtained using the createConnection( ) method of ProviderConnectionFactory , as described in the reference section for that class. Here's a typical example:

ProviderConnectionFactory pcf = ProviderConnectionFactory.newInstance(  );
ProviderConnection conn = pcf.createConnection(  );

All JAXM clients work with a JAXM message profile, which constructs SOAP messages according to agreed rules. A JAXM client can use the getMetaData( ) method to obtain a ProviderMetaData object that can be used to get the names of the profiles that the provider supports. In practice, however, a JAXM client has to be written with knowledge of the classes that implement a particular profile; therefore, this mechanism will probably only be used to verify that the required profile is available.

The createMessageFactory( ) method returns an object that can create messages formed according to the rules of the profile whose name is provided as its argument. The set of profiles supported by a provider and the names by which they are known are implementation-dependent. The reference implementation recognizes the names soaprp and ebxml . The following code returns a message factory that knows how to build SOAP messages according to the rules in the WS-Routing (formerly SOAP-RP) specification:

MessageFactory factory = conn.createMessageFactory("soaprp");

A JAXMException is thrown if the provider does not support the requested profile. Refer to the reference section for the javax.xml.soap package for a description of the MessageFactory class.

Having constructed a SOAP message, a client forwards it to its local provider using the send( ) method, which requires only the message itself as an argument. Unlike the send( ) method of the SAAJ SOAPConnection class, this method does not have an explicit destination address argument. Instead, the message is expected to specify the intended recipient using an address element that is specific to the profile according to which it was constructed. Furthermore, the address is usually not a fixed transport address (such as a URL). More likely, it is a URI that is used as a key to a configuration table in the provider where the URL of the JAXM provider local to the message recipient is held.

The close( ) method is used to release the ProviderConnection object when it is no longer required.