uk.ac.starlink.ttools.join

Class SkyMatch2Mapping

java.lang.Object

uk.ac.starlink.ttools.join.Match2Mapping

uk.ac.starlink.ttools.join.SkyMatch2Mapping

All Implemented Interfaces:

TableMapping

public class SkyMatch2Mapping
extends Match2Mapping

Match2Mapping subclass specific to sky matching.

Since:

6 Nov 2007

Author:

Mark Taylor

Constructor Summary

Constructors

Constructor and Description
SkyMatch2Mapping(FixedSkyMatchEngine.InDegrees matcher, String raExpr1, String decExpr1, String raExpr2, String decExpr2, JoinType join, PairMode pairMode, JoinFixAction fixact1, JoinFixAction fixact2, ProgressIndicator progger, RowRunner runner) Constructor.

Method Summary

Modifier and Type	Method and Description
protected StarTable	makeSubTable(StarTable inTable, String[] exprTuple) Creates a table containing the values which are required by the matcher.

Methods inherited from class uk.ac.starlink.ttools.join.Match2Mapping

mapTables

Methods inherited from class java.lang.Object

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

Constructor Detail

SkyMatch2Mapping

public SkyMatch2Mapping(FixedSkyMatchEngine.InDegrees matcher,
                        String raExpr1,
                        String decExpr1,
                        String raExpr2,
                        String decExpr2,
                        JoinType join,
                        PairMode pairMode,
                        JoinFixAction fixact1,
                        JoinFixAction fixact2,
                        ProgressIndicator progger,
                        RowRunner runner)

Constructor.

Parameters:

matcher - sky match engine

raExpr1 - JEL expression for right ascension/degrees in table 1 - if null, a guess is made

decExpr1 - JEL expression for declination/degrees in table 1 - if null, a guess is made

raExpr2 - JEL expression for right ascension/degrees in table 2 - if null, a guess is made

decExpr2 - JEL expression for declination/degrees in table 2 - if null, a guess is made

join - output row selection type

pairMode - pair matching mode

fixact1 - deduplication fix action for first input table

fixact2 - deduplication fix action for second input table

progger - progress indicator for match process

runner - controls parallel implementation, or null for sequential

Method Detail

makeSubTable

protected StarTable makeSubTable(StarTable inTable,
                                 String[] exprTuple)
                          throws ExecutionException

Description copied from class: Match2Mapping

Creates a table containing the values which are required by the matcher. This typically consists of a few of the columns from the input table, but in general may come from any JEL expression based on them. Because JEL compilation is performed here, an exception (rethrown as an ExecutionException) may occur.

Overrides:

makeSubTable in class Match2Mapping

Parameters:

inTable - input table

exprTuple - array of JEL expressions giving the values of the tuple elements required for the matcher

Returns:

table containing only a column for each tuple element required for the matcher

Throws:

ExecutionException - if a compilation error occurs