uk.ac.starlink.ttools.filter
Class ReplaceValueTable

java.lang.Object
  uk.ac.starlink.table.WrapperStarTable
      uk.ac.starlink.ttools.filter.ReplaceValueTable

All Implemented Interfaces:

uk.ac.starlink.table.StarTable

public class ReplaceValueTable
extends uk.ac.starlink.table.WrapperStarTable

Wrapper table which makes replacements of named values with other named values in some of its columns.

Since:

20 Sep 2005

Author:

Mark Taylor

Field Summary

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

baseTable

Constructor Summary

ReplaceValueTable(uk.ac.starlink.table.StarTable baseTable, boolean[] colFlags, String oldStr, String newStr)
Constructs a new ReplaceValueTable with the same replacement taking place in zero or more of the base table's columns, as described by an array of flags.

ReplaceValueTable(uk.ac.starlink.table.StarTable baseTable, int[] icols, String[] oldStrs, String[] newStrs)
Constructs a new ReplaceValueTable from parallel arrays describing the columns to change and the old and new values.

Method Summary

Object	getCell(long irow, int icol)
uk.ac.starlink.table.ColumnInfo	getColumnInfo(int icol)
Object[]	getRow(long irow)
uk.ac.starlink.table.RowSequence	getRowSequence()

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

checkedLongToInt, getBaseTable, getColumnAuxDataInfos, getColumnCount, getName, getParameterByName, getParameters, 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

ReplaceValueTable

public ReplaceValueTable(uk.ac.starlink.table.StarTable baseTable,
                         boolean[] colFlags,
                         String oldStr,
                         String newStr)
                  throws IOException

Constructs a new ReplaceValueTable with the same replacement taking place in zero or more of the base table's columns, as described by an array of flags.

Parameters:

baseTable - base table

colFlags - array of flags for each column of the table, true only for those columns which should be modified

oldStr - value to be replaced

newStr - replacement value

Throws:

IOException

ReplaceValueTable

public ReplaceValueTable(uk.ac.starlink.table.StarTable baseTable,
                         int[] icols,
                         String[] oldStrs,
                         String[] newStrs)
                  throws IOException

Constructs a new ReplaceValueTable from parallel arrays describing the columns to change and the old and new values. The additional arguments are a set of parallel arrays, with an element for each of the replacements which will happen. Each of the arrays icols, oldStrs and newStrs must have the same number of elements. Indices in icols ought not to be repeated.

Parameters:

baseTable - base table

icols - array of column indices in which replacements will occur

oldStrs - array of strings to be replaced, one for each of the columns in icols

newStrs - array of strings to furnish replacement values, one for each of the columns in icols

Throws:

IOException

Method Detail

getColumnInfo

public uk.ac.starlink.table.ColumnInfo getColumnInfo(int icol)

Specified by:

getColumnInfo in interface uk.ac.starlink.table.StarTable

Overrides:

getColumnInfo in class uk.ac.starlink.table.WrapperStarTable

getCell

public Object getCell(long irow,
                      int icol)
               throws IOException

Specified by:

getCell in interface uk.ac.starlink.table.StarTable

Overrides:

getCell in class uk.ac.starlink.table.WrapperStarTable

Throws:

IOException

getRow

public Object[] getRow(long irow)
                throws IOException

Specified by:

getRow in interface uk.ac.starlink.table.StarTable

Overrides:

getRow in class uk.ac.starlink.table.WrapperStarTable

Throws:

IOException

getRowSequence

public uk.ac.starlink.table.RowSequence getRowSequence()
                                                throws IOException

Specified by:

getRowSequence in interface uk.ac.starlink.table.StarTable

Overrides:

getRowSequence in class uk.ac.starlink.table.WrapperStarTable

Throws:

IOException