Package org.apache.axis2.jaxws.message

Interface Block<T,C>

All Superinterfaces:

OMDataSource, OMDataSourceExt

All Known Subinterfaces:

DataSourceBlock, JAXBBlock, OMBlock, SOAPEnvelopeBlock, SourceBlock, XMLStringBlock

All Known Implementing Classes:

BlockImpl, DataSourceBlockImpl, JAXBBlockImpl, OMBlockImpl, SOAPEnvelopeBlockImpl, SourceBlockImpl, XMLStringBlockImpl

public interface Block<T,C>
extends OMDataSourceExt

Block A Block represents an xml element and associated sub-tree. The name of the element must be defined by a root element in a schema. All prefixes within the subtree must correspond to namespace declarations defined within the tree. Many specifications refer to this as a "embedded document" or "xml block". I chose the term, block, for simplicity.

The block can be exposed as: * BusinessObject * StAX object

Note that the whole Message can also be thought of as a Block. Thus a Message can be createFrom a Block and written as a Block.

In addition, each of the accessors has a consume parameter. If consume is true, the Block is no longer valid after the message is called. (i.e. the implementation does not need to cache the information)

Method Summary

Modifier and Type	Method	Description
BlockFactory	getBlockFactory()	Get BlockFactory
Object	getBusinessContext()	GetBusinesContext Some business objects have an associated context object (i.e.
Object	getBusinessObject(boolean consume)	Get a reference to the Business Object represented by this Block
OMElement	getOMElement()	Get the OMElement represented by this Block.
Message	getParent()	Get the Message associated with this block
QName	getQName()	Get the QName (namespace, localpart) of the Block.
XMLStreamReader	getXMLStreamReader(boolean consume)	Get the XMLStreamReader represented by this Block
boolean	isConsumed()	isConsumed Return true if the block is consumed.
boolean	isElementData()
boolean	isQNameAvailable()
void	outputTo(XMLStreamWriter writer, boolean consume)	Write out the Block
void	setParent(Message parent)	Set the Message associated with this block (This method is intended to be called by the Message Implementation only)
String	traceString(String indent)	Get a traceString...the trace string dumps the contents of the Block without forcing an underlying ill-performant transformation of the message.

Methods inherited from interface org.apache.axiom.om.OMDataSource

getReader, serialize, serialize, serialize

Methods inherited from interface org.apache.axiom.om.OMDataSourceExt

close, copy, getObject, getProperty, getXMLBytes, getXMLInputStream, hasProperty, isDestructiveRead, isDestructiveWrite, setProperty

Method Detail

getBusinessObject

Object getBusinessObject(boolean consume)
                  throws XMLStreamException,
                         WebServiceException

Get a reference to the Business Object represented by this Block

Parameters:

consume - true if this is the last request on the block.

Returns:

Object (JAXB, String etc.)

Throws:

XMLStreamException

WebServiceException

getBusinessContext

Object getBusinessContext()

GetBusinesContext Some business objects have an associated context object (i.e. JAXBContext)

Returns:

Context Object or null

getXMLStreamReader

XMLStreamReader getXMLStreamReader(boolean consume)
                            throws XMLStreamException,
                                   WebServiceException

Get the XMLStreamReader represented by this Block

Parameters:

consume - true if this is the last request on the block.

Returns:

XMLStreamReader

Throws:

XMLStreamException

WebServiceException

getOMElement

OMElement getOMElement()
                throws XMLStreamException,
                       WebServiceException

Get the OMElement represented by this Block. This call always consumes the block because you are taking control of the underlying OM

Returns:

Throws:

XMLStreamException

WebServiceException

outputTo

void outputTo(XMLStreamWriter writer,
              boolean consume)
       throws XMLStreamException,
              WebServiceException

Write out the Block

Parameters:

writer - XMLStreamWriter

consume - true if this is the last request on the block.

Throws:

XMLStreamException

WebServiceException

isConsumed

boolean isConsumed()

isConsumed Return true if the block is consumed. Once consumed, the information in the block is no longer available.

Returns:

true if the block is consumed (a method was called with consume=true)

traceString

String traceString(String indent)

Get a traceString...the trace string dumps the contents of the Block without forcing an underlying ill-performant transformation of the message.

Returns:

String containing trace information

isQNameAvailable

boolean isQNameAvailable()

Returns:

If QName is available without doing an expensive parse of the business object, then return true Otherwise return false Note: This method should be used in situations where it would be nice to know the qname (like logging or a special check) but we don't want to cause an ill-performant parse.

getQName

QName getQName()
        throws WebServiceException

Get the QName (namespace, localpart) of the Block. Do not depend on prefix being set correctly. Asking for the QName can cause a performant hit.

Returns:

QName of the block

Throws:

WebServiceException

See Also:

isQNameAvailable()

getBlockFactory

BlockFactory getBlockFactory()

Get BlockFactory

Returns:

BlockFactory that created the Block

getParent

Message getParent()

Get the Message associated with this block

Returns:

Message

setParent

void setParent(Message parent)

Set the Message associated with this block (This method is intended to be called by the Message Implementation only)

Parameters:

parent -

isElementData

boolean isElementData()

Returns:

true if data is always an element; false if possibly mixed content or multiple elements