uk.ac.starlink.table
Class ProgressLineStarTable

java.lang.Object
  uk.ac.starlink.table.WrapperStarTable
      uk.ac.starlink.table.ProgressLineStarTable

All Implemented Interfaces:

StarTable

public class ProgressLineStarTable
extends WrapperStarTable

A WrapperStarTable which behaves the same as its base, except that any RowSequence taken out on it will display an ASCII progress line on a terminal describing how far through the table it's got. It might decide not to do this if the table is very short.

Field Summary

Fields inherited from class uk.ac.starlink.table.WrapperStarTable

baseTable

Constructor Summary

ProgressLineStarTable(StarTable baseTable, java.io.PrintStream out)
Constructs a new ProgressLineStarTable.

Method Summary

RowSequence

getRowSequence() Returns an object which can iterate over all the rows in the table sequentially.

Methods inherited from class uk.ac.starlink.table.WrapperStarTable

checkedLongToInt, getBaseTable, getCell, getColumnAuxDataInfos, getColumnCount, getColumnInfo, getName, getParameterByName, getParameters, getRow, getRowCount, getURL, isRandom, setName, setParameter, setURL, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ProgressLineStarTable

public ProgressLineStarTable(StarTable baseTable,
                             java.io.PrintStream out)

Constructs a new ProgressLineStarTable.

Parameters:

baseTable - the base table

out - stream on which progress will be written - this should preferably be terminal-like, since it's going to have things like carriage-returns ('\r') written to it

Method Detail

getRowSequence

public RowSequence getRowSequence()
                           throws java.io.IOException

Description copied from interface: StarTable

Returns an object which can iterate over all the rows in the table sequentially.

Specified by:

getRowSequence in interface StarTable

Overrides:

getRowSequence in class WrapperStarTable

Returns:

an object providing sequential access to the table data

Throws:

java.io.IOException - if there is an error providing access