JAFDataHandlerDeserializer (JAXRPC API) - JBoss 4.0.1 sp1 jaxrpc API Documentation 英文版文档

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org.apache.axis.encoding.ser
Class JAFDataHandlerDeserializer

java.lang.Object
  org.xml.sax.helpers.DefaultHandler
      org.apache.axis.message.SOAPHandler
          org.apache.axis.encoding.DeserializerImpl
              org.apache.axis.encoding.ser.JAFDataHandlerDeserializer

All Implemented Interfaces:: Callback, ContentHandler, javax.xml.rpc.encoding.Deserializer, Deserializer, DTDHandler, EntityResolver, ErrorHandler, Serializable

Direct Known Subclasses:: ImageDataHandlerDeserializer, MimeMultipartDataHandlerDeserializer, OctetStreamDataHandlerDeserializer, PlainTextDataHandlerDeserializer, SourceDataHandlerDeserializer

public class JAFDataHandlerDeserializer
extends DeserializerImpl

JAFDataHandler Serializer

Author:: Rick Rineholt Modified by Rich Scheuerle
See Also:: Serialized Form

Field Summary

Fields inherited from class org.apache.axis.encoding.DeserializerImpl

defaultType, id, isEnded, isHref, isNil, targets, value

Fields inherited from class org.apache.axis.message.SOAPHandler

myElement

Constructor Summary

JAFDataHandlerDeserializer()


Method Summary

SOAPHandler onStartChild(String namespace, String localName, String prefix, Attributes attributes, DeserializationContext context)
          Deserializer interface called on each child element encountered in the XML stream.

void startElement(String namespace, String localName, String prefix, Attributes attributes, DeserializationContext context)
          This method is invoked when an element start tag is encountered.

Methods inherited from class org.apache.axis.encoding.DeserializerImpl

addChildDeserializer, componentsReady, endElement, getDefaultType, getMechanismType, getValue, getValue, getValueTargets, moveValueTargets, onEndElement, onStartElement, registerValueTarget, removeValueTargets, setChildValue, setDefaultType, setValue, setValue, valueComplete

Methods inherited from class org.apache.axis.message.SOAPHandler

makeNewElement, onEndChild

Methods inherited from class org.xml.sax.helpers.DefaultHandler

characters, endDocument, endElement, endPrefixMapping, error, fatalError, ignorableWhitespace, notationDecl, processingInstruction, resolveEntity, setDocumentLocator, skippedEntity, startDocument, startElement, startPrefixMapping, unparsedEntityDecl, warning

Methods inherited from class java.lang.Object

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

Constructor Detail

JAFDataHandlerDeserializer

public JAFDataHandlerDeserializer()

Method Detail

startElement

public void startElement(String namespace,
                         String localName,
                         String prefix,
                         Attributes attributes,
                         DeserializationContext context)
                  throws SAXException

Description copied from class: DeserializerImpl

This method is invoked when an element start tag is encountered. DeserializerImpl provides default behavior, which involves the following: - directly handling the deserialization of a nill value - handling the registration of the id value. - handling the registration of a fixup if this element is an href. - calling onStartElement to do the actual deserialization if not nill or href cases.

Specified by:: startElement in interface Deserializer
Overrides:: startElement in class DeserializerImpl

Parameters:

namespace - is the namespace of the element

localName - is the name of the element

prefix - is the prefix of the element

attributes - are the attributes on the element...used to get the type

context - is the DeserializationContext

Normally a specific Deserializer (FooDeserializer) should extend DeserializerImpl. Here is the flow that will occur in such cases: 1) DeserializerImpl.startElement(...) will be called and do the id/href/nill stuff. 2) If real deserialization needs to take place DeserializerImpl.onStartElement will be invoked, which will attempt to install the specific Deserializer (FooDeserializer) 3) The FooDeserializer.startElement(...) will be called to do the Foo specific stuff. This results in a call to FooDeserializer.onStartElement(...) if startElement was not overridden. 4) The onChildElement(...) method is called for each child element. Nothing occurs if not overridden. The FooDeserializer.onStartChild(...) method should return the deserializer for the child element. 5) When the end tag is reached, the endElement(..) method is invoked. The default behavior is to handle hrefs/ids, call onEndElement and then call the Deserializer valueComplete method.

So the methods that you potentially want to override are: onStartElement, onStartChild, componentsReady, setValue(object, hint) You probably should not override startElement or endElement. If you need specific behaviour at the end of the element consider overriding onEndElement.

See the pre-existing Deserializers for more information.

Throws:

SAXException

onStartChild

public SOAPHandler onStartChild(String namespace,
                                String localName,
                                String prefix,
                                Attributes attributes,
                                DeserializationContext context)
                         throws SAXException

Deserializer interface called on each child element encountered in the XML stream.

Specified by:: onStartChild in interface Deserializer
Overrides:: onStartChild in class DeserializerImpl

Parameters:: namespace - is the namespace of the child element; localName - is the local name of the child element; prefix - is the prefix used on the name of the child element; attributes - are the attributes of the child element; context - is the deserialization context.
Returns:: is a Deserializer to use to deserialize a child (must be a derived class of SOAPHandler) or null if no deserialization should be performed.
Throws:: SAXException