ColumnQueryRowSequence (Starjava TTOOLS API)

java.lang.Object
- uk.ac.starlink.table.WrapperRowSequence
- - uk.ac.starlink.ttools.cone.ColumnQueryRowSequence

All Implemented Interfaces:

uk.ac.starlink.table.RowSequence, ConeQueryRowSequence
```
public class ColumnQueryRowSequence
extends uk.ac.starlink.table.WrapperRowSequence
implements ConeQueryRowSequence
```
ConeQueryRowSequence implementation which extracts values based on supplied column indices.

Since:

16 Oct 2007

Author:

Mark Taylor

Field Summary
- Fields inherited from class uk.ac.starlink.table.WrapperRowSequence
  baseSeq

Constructor Summary

Constructors
Constructor	Description
`ColumnQueryRowSequence(uk.ac.starlink.table.StarTable table, int raCol, int decCol, int srCol)`	Constructor.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static ConeQueryRowSequence`	`createFixedRadiusSequence(uk.ac.starlink.table.StarTable table, int raCol, int decCol, double sr)`	Utility method which constructs a ConeQueryRowSequence object using column indices for RA and Dec but a constant value for the search radius.
`double`	`getDec()`	Get central declination for the current row's cone search request in degrees.
`long`	`getIndex()`	Get the index in the underlying table to which the current row relates.
`double`	`getRa()`	Get central right ascension for the current row's cone search request in degrees.
`double`	`getRadius()`	Get search radius for the current row's cone search request in degrees.
`boolean`	`next()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface uk.ac.starlink.table.RowSequence
close, getCell, getRow

Methods inherited from class uk.ac.starlink.table.WrapperRowSequence
close, getCell, getRow, toString

- Constructor Detail
  - ColumnQueryRowSequence
```
public ColumnQueryRowSequence(uk.ac.starlink.table.StarTable table,
                              int raCol,
                              int decCol,
                              int srCol)
                       throws java.io.IOException
```
    Constructor.
    
    Parameters:
    
    table - input table
    
    raCol - index of column giving right ascension in degrees
    
    decCol - index of column giving declination in degrees
    
    srCol - index of column giving search radius in degrees
    
    Throws:
    
    java.io.IOException
- Method Detail
  - getRa
```
public double getRa()
             throws java.io.IOException
```
    Description copied from interface: ConeQueryRowSequence
    
    Get central right ascension for the current row's cone search request in degrees.
    
    Specified by:
    
    getRa in interface ConeQueryRowSequence
    
    Returns:
    
    right ascension
    
    Throws:
    
    java.io.IOException
  - getDec
```
public double getDec()
              throws java.io.IOException
```
    Description copied from interface: ConeQueryRowSequence
    
    Get central declination for the current row's cone search request in degrees.
    
    Specified by:
    
    getDec in interface ConeQueryRowSequence
    
    Returns:
    
    declination
    
    Throws:
    
    java.io.IOException
  - getRadius
```
public double getRadius()
                 throws java.io.IOException
```
    Description copied from interface: ConeQueryRowSequence
    
    Get search radius for the current row's cone search request in degrees.
    
    Specified by:
    
    getRadius in interface ConeQueryRowSequence
    
    Returns:
    
    search radius
    
    Throws:
    
    java.io.IOException
  - getIndex
```
public long getIndex()
```
    Description copied from interface: ConeQueryRowSequence
    
    Get the index in the underlying table to which the current row relates. The identity of this underlying table is not specified by this interface, but must be understood by the creator and user of instances. In particular, the return value does not necessarily increment by one for each call to next.
    
    Specified by:
    
    getIndex in interface ConeQueryRowSequence
    
    Returns:
    
    row index
  - next
```
public boolean next()
             throws java.io.IOException
```
    Specified by:
    
    next in interface uk.ac.starlink.table.RowSequence
    
    Overrides:
    
    next in class uk.ac.starlink.table.WrapperRowSequence
    
    Throws:
    
    java.io.IOException
  - createFixedRadiusSequence
```
public static ConeQueryRowSequence createFixedRadiusSequence(uk.ac.starlink.table.StarTable table,
                                                             int raCol,
                                                             int decCol,
                                                             double sr)
                                                      throws java.io.IOException
```
    Utility method which constructs a ConeQueryRowSequence object using column indices for RA and Dec but a constant value for the search radius.
    
    Parameters:
    
    table - input table
    
    raCol - index of column giving right ascension in degrees
    
    decCol - index of column giving declination in degrees
    
    sr - fixed search radius in degrees
    
    Throws:
    
    java.io.IOException

Class ColumnQueryRowSequence

Field Summary

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

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

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

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

Constructor Detail

ColumnQueryRowSequence

Method Detail

getRa

getDec

getRadius

getIndex

next

createFixedRadiusSequence