SOAPPart object. By
* default, a SOAPMessage object is created with a SOAPPart object that
* has a SOAPEnvelope object. The SOAPEnvelope object by default has an
* empty SOAPBody object and an empty SOAPHeader object. The
* SOAPBody object is required, and the SOAPHeader object, though
* optional, is used in the majority of cases. If the SOAPHeader object is not needed,
* it can be deleted, which is shown later.
*
* A client can access the SOAPHeader and SOAPBody objects by calling
* the methods SOAPEnvelope.getHeader and SOAPEnvelope.getBody. The
* following lines of code use these two methods after starting with the SOAPMessage
* object message to get the SOAPPart object sp, which is then used to
* get the SOAPEnvelope object se.
SOAPPart sp = * message.getSOAPPart(); SOAPEnvelope se = sp.getEnvelope(); SOAPHeader sh = se.getHeader(); * SOAPBody sb = se.getBody();* *
It is possible to change the body or header of a SOAPEnvelope object by
* retrieving the current one, deleting it, and then adding a new body or header. The
* javax.xml.soap.Node method detachNode detaches the XML element (node) on
* which it is called. For example, the following line of code deletes the SOAPBody
* object that is retrieved by the method getBody.
* se.getBody().detachNode();To create a
SOAPHeader object to replace the one
* that was removed, a client uses the method SOAPEnvelope.addHeaderBlock, which
* creates a new header and adds it to the SOAPEnvelope object. Similarly, the method
* addBody creates a new SOAPBody object and adds it to the
* SOAPEnvelope object. The following code fragment retrieves the current header,
* removes it, and adds a new one. Then it retrieves the current body, removes it, and adds a new
* one. SOAPPart sp = message.getSOAPPart(); SOAPEnvelope se = sp.getEnvelope(); * se.getHeader().detachNode(); SOAPHeader sh = se.addHeaderBlock(); se.getBody().detachNode(); * SOAPBody sb = se.addBody();It is an error to add a
SOAPBody or
* SOAPHeader object if one already exists.
*
* The SOAPEnvelope interface provides three methods for creating Name
* objects. One method creates Name objects with a local name, a namespace prefix, and
* a namesapce URI. The second method creates Name objects with a local name and a
* namespace prefix, and the third creates Name objects with just a local name. The
* following line of code, in which se is a SOAPEnvelope object, creates a new
* Name object with all three.
Name name = se.createName("GetLastTradePrice",
* "WOMBAT", "http://www.wombat.org/trader");
*/
public interface SOAPEnvelope extends SOAPElement {
/**
* Creates a new Name object initialized with the given local name, namespace
* prefix, and namespace URI.
*
* This factory method creates Name objects for use in the SOAP/XML document.
*
* @param localName a String giving the local name
* @param prefix a String giving the prefix of the namespace
* @param uri a String giving the URI of the namespace
* @return a Name object initialized with the given local name, namespace prefix,
* and namespace URI
* @throws SOAPException if there is a SOAP error
*/
public abstract Name createName(String localName,
String prefix,
String uri)
throws SOAPException;
/**
* Creates a new Name object initialized with the given local name.
*
This factory method creates Name objects for use in the SOAP/XML document.
*
* @param localName a String giving the local name
* @return a Name object initialized with the given local name
* @throws SOAPException if there is a SOAP error
*/
public abstract Name createName(String localName) throws SOAPException;
/**
* Returns the SOAPHeader object for this SOAPEnvelope object.
*
A new SOAPMessage object is by default created with a
* SOAPEnvelope object that contains an empty SOAPHeader object. As a
* result, the method getHeader will always return a SOAPHeader object
* unless the header has been removed and a new one has not been added.
*
* @return the SOAPHeader object or null if there is none
* @throws SOAPException if there is a problem obtaining the SOAPHeader object
*/
public abstract SOAPHeader getHeader() throws SOAPException;
/**
* Returns the SOAPBody object associated with this SOAPEnvelope
* object.
*
A new SOAPMessage object is by default created with a
* SOAPEnvelope object that contains an empty SOAPBody object. As a
* result, the method getBody will always return a SOAPBody object
* unless the body has been removed and a new one has not been added.
*
* @return the SOAPBody object for this SOAPEnvelope object or
* null if there is none
* @throws SOAPException if there is a problem obtaining the SOAPBody object
*/
public abstract SOAPBody getBody() throws SOAPException;
/**
* Creates a SOAPHeader object and sets it as the SOAPHeader object
* for this SOAPEnvelope object.
*
It is illegal to add a header when the envelope already contains a header. Therefore, this
* method should be called only after the existing header has been removed.
*
* @return the new SOAPHeader object
* @throws SOAPException if this SOAPEnvelope object already contains a valid
* SOAPHeader object
*/
public abstract SOAPHeader addHeader() throws SOAPException;
/**
* Creates a SOAPBody object and sets it as the SOAPBody object for
* this SOAPEnvelope object.
*
It is illegal to add a body when the envelope already contains a body. Therefore, this
* method should be called only after the existing body has been removed.
*
* @return the new SOAPBody object
* @throws SOAPException if this SOAPEnvelope object already contains a valid
* SOAPBody object
*/
public abstract SOAPBody addBody() throws SOAPException;
}