uk.ac.starlink.ttools.cone
Class JELQuerySequenceFactory

java.lang.Object
  uk.ac.starlink.ttools.cone.JELQuerySequenceFactory

All Implemented Interfaces:

QuerySequenceFactory

public class JELQuerySequenceFactory
extends Object
implements QuerySequenceFactory

QuerySequenceFactory which uses JEL expressions for RA, Dec and SR.

Since:

16 Oct 2007

Author:

Mark Taylor

Constructor Summary

JELQuerySequenceFactory(String raExpr, String decExpr, String srExpr)
Constructor.

Method Summary

ConeQueryRowSequence

createQuerySequence(uk.ac.starlink.table.StarTable table) Creates a query sequence.

Methods inherited from class java.lang.Object

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

Constructor Detail

JELQuerySequenceFactory

public JELQuerySequenceFactory(String raExpr,
                               String decExpr,
                               String srExpr)

Constructor. The JEL expressions will be resolved using the column names of the supplied table when the factory method is called.

Parameters:

raExpr - JEL expression for right ascension in degrees; if null a guess will be attempted

decExpr - JEL expression for declination in degrees; if null a guess will be attempted

srExpr - JEL expression for search radius in degrees

Method Detail

createQuerySequence

public ConeQueryRowSequence createQuerySequence(uk.ac.starlink.table.StarTable table)
                                         throws IOException

Description copied from interface: QuerySequenceFactory

Creates a query sequence.

Specified by:

createQuerySequence in interface QuerySequenceFactory

Parameters:

table - input table

Throws:

IOException