uk.ac.starlink.votable

Interface TableHandler

All Known Implementing Classes:

AxisTableDeserializer, DalResultStreamer, VotCopyHandler

public interface TableHandler

SAX-like handler which defines callbacks that can be made when a VOTable data is encountered during a SAX stream.

Since:

15 Apr 2005

Author:

Mark Taylor (Starlink)

See Also:

TableContentHandler

Method Summary

Modifier and Type	Method and Description
void	endTable() Called when there are no more rows to be transmitted.
void	rowData(Object[] row) Called when a row has been read.
void	startTable(StarTable metadata) Called when a table is about to be transmitted.

Method Detail

startTable

void startTable(StarTable metadata)
         throws SAXException

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).

Parameters:

metadata - metadata object

Throws:

SAXException

rowData

void rowData(Object[] row)
      throws SAXException

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

Parameters:

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

Throws:

SAXException

endTable

void endTable()
       throws SAXException

Called when there are no more rows to be transmitted.

Throws:

SAXException