uk.ac.starlink.topcat

Class SortOrder

java.lang.Object

uk.ac.starlink.topcat.SortOrder

public class SortOrder
extends Object

Defines a sorting order for a table. An instance of this class defines the ordering by which a sort is done, rather than a given row sequence.

Note that the sense (up or down) of the sort is selected separately than by this object.

Since:

23 Feb 2004

Author:

Mark Taylor (Starlink)

Field Summary

Fields

Modifier and Type	Field and Description
static SortOrder	NONE SortOrder instance indicating the natural order of the data.

Constructor Summary

Constructors

Constructor and Description
SortOrder(String[] expressions) Constructs a new sort order based on a table column.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
String[]	getExpressions() Gives the expressions on which this table is based.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

NONE

public static final SortOrder NONE

SortOrder instance indicating the natural order of the data.

Constructor Detail

SortOrder

public SortOrder(String[] expressions)

Constructs a new sort order based on a table column.

Parameters:

expressions - list of JEL sort expressions, most significant first

Method Detail

getExpressions

public String[] getExpressions()

Gives the expressions on which this table is based.

Returns:

array of sort JEL expressions, most significant first

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object