uk.ac.starlink.votable.soap

Class AxisTableDeserializer

java.lang.Object

org.xml.sax.helpers.DefaultHandler

org.apache.axis.message.SOAPHandler

org.apache.axis.encoding.DeserializerImpl

uk.ac.starlink.votable.soap.AxisTableDeserializer

All Implemented Interfaces:

Serializable, javax.xml.rpc.encoding.Deserializer, org.apache.axis.encoding.Callback, ContentHandler, DTDHandler, EntityResolver, ErrorHandler, TableHandler

public class AxisTableDeserializer
extends org.apache.axis.encoding.DeserializerImpl
implements TableHandler

Custom deserializer for VOTables. The serialized stream is assumed to be a valid VOTABLE element containing a RESOURCE element containing a TABLE element.

The implementation of this class is tailored to various ill-documented idiosyncracies of AXIS's deserialization machinery. Tinker at your peril.

Since:

23 Mar 2005

Author:

Mark Taylor (Starlink)

See Also:

Serialized Form

Field Summary

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

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

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

myElement

Constructor Summary

Constructors

Constructor and Description
AxisTableDeserializer(StoragePolicy storagePolicy) Constructor.

Method Summary

Modifier and Type	Method and Description
boolean	componentsReady()
void	endTable() Called when there are no more rows to be transmitted.
Object	getValue()
void	onEndElement(String namespace, String localName, org.apache.axis.encoding.DeserializationContext context)
org.apache.axis.message.SOAPHandler	onStartChild(String namespace, String localName, String prefix, Attributes atts, org.apache.axis.encoding.DeserializationContext context)
void	rowData(Object[] row) Called when a row has been read.
void	startTable(StarTable meta) Called when a table is about to be transmitted.
void	valueComplete()

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

addChildDeserializer, endElement, getDefaultType, getMechanismType, getValue, getValueTargets, moveValueTargets, onStartElement, registerValueTarget, removeValueTargets, setChildValue, setDefaultType, setValue, setValue, startElement

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

characters, makeNewElement, onEndChild

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

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

AxisTableDeserializer

public AxisTableDeserializer(StoragePolicy storagePolicy)

Constructor.

Parameters:

storagePolicy - policy for storing streamed table data

Method Detail

onStartChild

public org.apache.axis.message.SOAPHandler onStartChild(String namespace,
                                                        String localName,
                                                        String prefix,
                                                        Attributes atts,
                                                        org.apache.axis.encoding.DeserializationContext context)
                                                 throws SAXException

Overrides:

onStartChild in class org.apache.axis.encoding.DeserializerImpl

Throws:

SAXException

onEndElement

public void onEndElement(String namespace,
                         String localName,
                         org.apache.axis.encoding.DeserializationContext context)
                  throws SAXException

Overrides:

onEndElement in class org.apache.axis.encoding.DeserializerImpl

Throws:

SAXException

startTable

public void startTable(StarTable meta)

Description copied from interface: TableHandler

Called when a table is about to be transmitted. This call will occur somewhere between matched DATA element startElement and endElement calls. The metadata argument signals column and table metadata argument about the table whose rows are about to be transmitted. If the number of rows that will be transmitted via subsequent calls to rowData is known, this value should be made available as the row count of metadata (StarTable.getRowCount()); if it is not known, the row count should be -1. However, this object should not attempt to read any of meta's cell data.

The data to be transmitted in subsequent calls of acceptRow must match the metadata transmitted in this call in the same way that rows of a StarTable must match its own metadata (number and content clases of columns etc).

Specified by:

startTable in interface TableHandler

Parameters:

meta - metadata object

rowData

public void rowData(Object[] row)
             throws SAXException

Description copied from interface: TableHandler

Called when a row has been read. This method will be called between matched startTable and endTable calls.

Specified by:

rowData in interface TableHandler

Parameters:

row - array of data objects representing a row in the current table

Throws:

SAXException

endTable

public void endTable()
              throws SAXException

Description copied from interface: TableHandler

Called when there are no more rows to be transmitted.

Specified by:

endTable in interface TableHandler

Throws:

SAXException

getValue

public Object getValue()

Overrides:

getValue in class org.apache.axis.encoding.DeserializerImpl

componentsReady

public boolean componentsReady()

Overrides:

componentsReady in class org.apache.axis.encoding.DeserializerImpl

valueComplete

public void valueComplete()
                   throws SAXException

Overrides:

valueComplete in class org.apache.axis.encoding.DeserializerImpl

Throws:

SAXException