uk.ac.starlink.ttools.filter

Class ValueInfoMapGroupTable

java.lang.Object

uk.ac.starlink.table.AbstractStarTable

uk.ac.starlink.table.RandomStarTable

uk.ac.starlink.ttools.filter.ValueInfoMapGroupTable

All Implemented Interfaces:

Closeable, AutoCloseable, StarTable

public class ValueInfoMapGroupTable
extends RandomStarTable

StarTable implementation built on a MapGroup whose keys are ValueInfo objects representing columns of the table.

Since:

26 Apr 2006

Author:

Mark Taylor

Method Summary

Modifier and Type	Method and Description
Object	getCell(long irow, int icol) Implementations of this method must be safe for concurrent calls from multiple threads.
int	getColumnCount() Returns the number of columns in this table.
ColumnInfo	getColumnInfo(int icol) Returns the object describing the data in a given column.
Object[]	getRow(long irow) The AbstractStarTable implementation of this method constructs a row by repeated invocation of AbstractStarTable.getCell(long, int).
long	getRowCount() Implementations must supply a non-negative return value.

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

getRowAccess, getRowSequence, isRandom

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

checkedLongToInt, close, getColumnAuxDataInfos, getName, getParameters, getRowSplittable, getURL, setName, setParameters, setURL

Methods inherited from class java.lang.Object

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

Methods inherited from interface uk.ac.starlink.table.StarTable

getParameterByName, setParameter

Method Detail

getColumnInfo

public ColumnInfo getColumnInfo(int icol)

Description copied from interface: StarTable

Returns the object describing the data in a given column.

Specified by:

getColumnInfo in interface StarTable

Specified by:

getColumnInfo in class AbstractStarTable

Parameters:

icol - the column for which header information is required

Returns:

a ValueInfo object for column icol

getRowCount

public long getRowCount()

Description copied from class: RandomStarTable

Implementations must supply a non-negative return value.

Specified by:

getRowCount in interface StarTable

Specified by:

getRowCount in class RandomStarTable

Returns:

the number of rows in the table

getColumnCount

public int getColumnCount()

Description copied from interface: StarTable

Returns the number of columns in this table.

Specified by:

getColumnCount in interface StarTable

Specified by:

getColumnCount in class AbstractStarTable

Returns:

the number of columns

getCell

public Object getCell(long irow,
                      int icol)

Description copied from class: RandomStarTable

Implementations of this method must be safe for concurrent calls from multiple threads.

Specified by:

getCell in interface StarTable

Specified by:

getCell in class RandomStarTable

Parameters:

irow - the index of the cell's row

icol - the index of the cell's column

Returns:

the contents of this cell

getRow

public Object[] getRow(long irow)

Description copied from class: AbstractStarTable

The AbstractStarTable implementation of this method constructs a row by repeated invocation of AbstractStarTable.getCell(long, int).

Specified by:

getRow in interface StarTable

Overrides:

getRow in class AbstractStarTable

Parameters:

irow - the index of the row to retrieve

Returns:

an array of the objects in each cell in row irow