javax.xml.soap

Class SOAPMessage

java.lang.Object

javax.xml.soap.SOAPMessage

public abstract class SOAPMessage
extends Object

The root class for all SOAP messages. As transmitted on the "wire", a SOAP message is an XML document or a MIME message whose first body part is an XML/SOAP document.

A SOAPMessage object consists of a SOAP part and optionally one or more attachment parts. The SOAP part for a SOAPMessage object is a SOAPPart object, which contains information used for message routing and identification, and which can contain application-specific content. All data in the SOAP Part of a message must be in XML format.

A new SOAPMessage object contains the following by default:

• A SOAPPart object
• A SOAPEnvelope object
• A SOAPBody object
• A SOAPHeader object

The SOAP part of a message can be retrieved by calling the method SOAPMessage.getSOAPPart(). The SOAPEnvelope object is retrieved from the SOAPPart object, and the SOAPEnvelope object is used to retrieve the SOAPBody and SOAPHeader objects.

 SOAPPart
 sp = message.getSOAPPart(); SOAPEnvelope se = sp.getEnvelope(); SOAPBody sb = se.getBody();
 SOAPHeader sh = se.getHeader(); 

In addition to the mandatory SOAPPart object, a SOAPMessage object may contain zero or more AttachmentPart objects, each of which contains application-specific data. The SOAPMessage interface provides methods for creating AttachmentPart objects and also for adding them to a SOAPMessage object. A party that has received a SOAPMessage object can examine its contents by retrieving individual attachment parts.

Unlike the rest of a SOAP message, an attachment is not required to be in XML format and can therefore be anything from simple text to an image file. Consequently, any message content that is not in XML format must be in an AttachmentPart object.

A MessageFactory object creates new SOAPMessage objects. If the MessageFactory object was initialized with a messaging Profile, it produces SOAPMessage objects that conform to that Profile. For example, a SOAPMessage object created by a MessageFactory object initialized with the ebXML Profile will have the appropriate ebXML headers.

See Also:

MessageFactory, AttachmentPart

Field Summary

Fields

Modifier and Type	Field and Description
static String	CHARACTER_SET_ENCODING Specifies the character type encoding for the SOAP Message.
static String	WRITE_XML_DECLARATION Specifies whether the SOAP Message should contain an XML declaration.

Constructor Summary

Constructors

Constructor and Description
SOAPMessage()

Method Summary

Methods

Modifier and Type	Method and Description
abstract void	addAttachmentPart(AttachmentPart attachmentpart) Adds the given AttachmentPart object to this SOAPMessage object.
abstract int	countAttachments() Gets a count of the number of attachments in this message.
abstract AttachmentPart	createAttachmentPart() Creates a new empty AttachmentPart object.
AttachmentPart	createAttachmentPart(javax.activation.DataHandler datahandler) Creates an AttachmentPart object and populates it using the given DataHandler object.
AttachmentPart	createAttachmentPart(Object content, String contentType) Creates an AttachmentPart object and populates it with the specified data of the specified content type.
abstract AttachmentPart	getAttachment(SOAPElement soapelement)
abstract Iterator	getAttachments() Retrieves all the AttachmentPart objects that are part of this SOAPMessage object.
abstract Iterator	getAttachments(MimeHeaders headers) Retrieves all the AttachmentPart objects that have header entries that match the specified headers.
abstract String	getContentDescription() Retrieves a description of this SOAPMessage object's content.
abstract MimeHeaders	getMimeHeaders() Returns all the transport-specific MIME headers for this SOAPMessage object in a transport-independent fashion.
Object	getProperty(String property) Retrieves value of the specified property.
SOAPBody	getSOAPBody() Gets the SOAP Body contained in this SOAPMessage object.
SOAPHeader	getSOAPHeader() Gets the SOAP Header contained in this SOAPMessage object.
abstract SOAPPart	getSOAPPart() Gets the SOAP part of this SOAPMessage object.
abstract void	removeAllAttachments() Removes all AttachmentPart objects that have been added to this SOAPMessage object.
abstract void	removeAttachments(MimeHeaders mimeheaders)
abstract void	saveChanges() Updates this SOAPMessage object with all the changes that have been made to it.
abstract boolean	saveRequired() Indicates whether this SOAPMessage object has had the method saveChanges called on it.
abstract void	setContentDescription(String description) Sets the description of this SOAPMessage object's content with the given description.
void	setProperty(String property, Object value) Associates the specified value with the specified property.
abstract void	writeTo(OutputStream out) Writes this SOAPMessage object to the given output stream.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

CHARACTER_SET_ENCODING

public static final String CHARACTER_SET_ENCODING

Specifies the character type encoding for the SOAP Message.

See Also:

Constant Field Values

WRITE_XML_DECLARATION

public static final String WRITE_XML_DECLARATION

Specifies whether the SOAP Message should contain an XML declaration.

See Also:

Constant Field Values

Constructor Detail

SOAPMessage

public SOAPMessage()

Method Detail

getContentDescription

public abstract String getContentDescription()

Retrieves a description of this SOAPMessage object's content.

Returns:

a String describing the content of this message or null if no description has been set

See Also:

setContentDescription(java.lang.String)

setContentDescription

public abstract void setContentDescription(String description)

Sets the description of this SOAPMessage object's content with the given description.

Parameters:

description - a String describing the content of this message

See Also:

getContentDescription()

getSOAPPart

public abstract SOAPPart getSOAPPart()

Gets the SOAP part of this SOAPMessage object.

If a SOAPMessage object contains one or more attachments, the SOAP Part must be the first MIME body part in the message.

Returns:

the SOAPPart object for this SOAPMessage object

removeAllAttachments

public abstract void removeAllAttachments()

Removes all AttachmentPart objects that have been added to this SOAPMessage object.

This method does not touch the SOAP part.

countAttachments

public abstract int countAttachments()

Gets a count of the number of attachments in this message. This count does not include the SOAP part.

Returns:

the number of AttachmentPart objects that are part of this SOAPMessage object

getAttachments

public abstract Iterator getAttachments()

Retrieves all the AttachmentPart objects that are part of this SOAPMessage object.

Returns:

an iterator over all the attachments in this message

getAttachments

public abstract Iterator getAttachments(MimeHeaders headers)

Retrieves all the AttachmentPart objects that have header entries that match the specified headers. Note that a returned attachment could have headers in addition to those specified.

Parameters:

headers - a MimeHeaders object containing the MIME headers for which to search

Returns:

an iterator over all attachments that have a header that matches one of the given headers

addAttachmentPart

public abstract void addAttachmentPart(AttachmentPart attachmentpart)

Adds the given AttachmentPart object to this SOAPMessage object. An AttachmentPart object must be created before it can be added to a message.

Parameters:

attachmentpart - an AttachmentPart object that is to become part of this SOAPMessage object

Throws:

IllegalArgumentException

createAttachmentPart

public abstract AttachmentPart createAttachmentPart()

Creates a new empty AttachmentPart object. Note that the method addAttachmentPart must be called with this new AttachmentPart object as the parameter in order for it to become an attachment to this SOAPMessage object.

Returns:

a new AttachmentPart object that can be populated and added to this SOAPMessage object

createAttachmentPart

public AttachmentPart createAttachmentPart(javax.activation.DataHandler datahandler)

Creates an AttachmentPart object and populates it using the given DataHandler object.

Parameters:

datahandler - the javax.activation.DataHandler object that will generate the content for this SOAPMessage object

Returns:

a new AttachmentPart object that contains data generated by the given DataHandler object

Throws:

IllegalArgumentException - if there was a problem with the specified DataHandler object

See Also:

DataHandler, DataContentHandler

getMimeHeaders

public abstract MimeHeaders getMimeHeaders()

Returns all the transport-specific MIME headers for this SOAPMessage object in a transport-independent fashion.

Returns:

a MimeHeaders object containing the MimeHeader objects

createAttachmentPart

public AttachmentPart createAttachmentPart(Object content,
                                  String contentType)

Creates an AttachmentPart object and populates it with the specified data of the specified content type.

Parameters:

content - an Object containing the content for this SOAPMessage object

contentType - a String object giving the type of content; examples are "text/xml", "text/plain", and "image/jpeg"

Returns:

a new AttachmentPart object that contains the given data

Throws:

IllegalArgumentException - if the contentType does not match the type of the content object, or if there was no DataContentHandler object for the given content object

See Also:

DataHandler, DataContentHandler

saveChanges

public abstract void saveChanges()
                          throws SOAPException

Updates this SOAPMessage object with all the changes that have been made to it. This method is called automatically when a message is sent or written to by the methods ProviderConnection.send, SOAPConnection.call, or SOAPMessage.writeTo. However, if changes are made to a message that was received or to one that has already been sent, the method saveChanges needs to be called explicitly in order to save the changes. The method saveChanges also generates any changes that can be read back (for example, a MessageId in profiles that support a message id). All MIME headers in a message that is created for sending purposes are guaranteed to have valid values only after saveChanges has been called.

In addition, this method marks the point at which the data from all constituent AttachmentPart objects are pulled into the message.

Throws:

SOAPException - if there was a problem saving changes to this message.

saveRequired

public abstract boolean saveRequired()

Indicates whether this SOAPMessage object has had the method saveChanges called on it.

Returns:

true if saveChanges has been called on this message at least once; false otherwise.

writeTo

public abstract void writeTo(OutputStream out)
                      throws SOAPException,
                             IOException

Writes this SOAPMessage object to the given output stream. The externalization format is as defined by the SOAP 1.1 with Attachments specification.

If there are no attachments, just an XML stream is written out. For those messages that have attachments, writeTo writes a MIME-encoded byte stream.

Parameters:

out - the OutputStream object to which this SOAPMessage object will be written

Throws:

SOAPException - if there was a problem in externalizing this SOAP message

IOException - if an I/O error occurs

getSOAPBody

public SOAPBody getSOAPBody()
                     throws SOAPException

Gets the SOAP Body contained in this SOAPMessage object.

Returns:

the SOAPBody object contained by this SOAPMessage object

Throws:

SOAPException - if the SOAP Body does not exist or cannot be retrieved

getSOAPHeader

public SOAPHeader getSOAPHeader()
                         throws SOAPException

Gets the SOAP Header contained in this SOAPMessage object.

Returns:

the SOAPHeader object contained by this SOAPMessage object

Throws:

SOAPException - if the SOAP Header does not exist or cannot be retrieved

setProperty

public void setProperty(String property,
               Object value)
                 throws SOAPException

Associates the specified value with the specified property. If there was already a value associated with this property, the old value is replaced.

The valid property names include WRITE_XML_DECLARATION and CHARACTER_SET_ENCODING. All of these standard SAAJ properties are prefixed by "javax.xml.soap". Vendors may also add implementation specific properties. These properties must be prefixed with package names that are unique to the vendor.

Setting the property WRITE_XML_DECLARATION to "true" will cause an XML Declaration to be written out at the start of the SOAP message. The default value of "false" suppresses this declaration.

The property CHARACTER_SET_ENCODING defaults to the value "utf-8" which causes the SOAP message to be encoded using UTF-8. Setting CHARACTER_SET_ENCODING to "utf-16" causes the SOAP message to be encoded using UTF-16.

Some implementations may allow encodings in addition to UTF-8 and UTF-16. Refer to your vendor's documentation for details.

Parameters:

property - the property with which the specified value is to be associated

value - the value to be associated with the specified property

Throws:

SOAPException - if the property name is not recognized

getProperty

public Object getProperty(String property)
                   throws SOAPException

Retrieves value of the specified property.

Parameters:

property - the name of the property to retrieve

Returns:

the value of the property or null if no such property exists

Throws:

SOAPException - if the property name is not recognized

getAttachment

public abstract AttachmentPart getAttachment(SOAPElement soapelement)
                                      throws SOAPException

Throws:

SOAPException

removeAttachments

public abstract void removeAttachments(MimeHeaders mimeheaders)