uk.ac.starlink.vo

Class ValueConverter

java.lang.Object

uk.ac.starlink.vo.ValueConverter

Direct Known Subclasses:

ValueConverter.DMSDegreesValueConverter, ValueConverter.HMSDegreesValueConverter, ValueConverter.UnitValueConverter

public abstract class ValueConverter
extends Object

Provides some way of converting a string value into a numeric. A number of useful subclasses are provided.

Since:

21 Dec 2004

Author:

Mark Taylor (Starlink)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ValueConverter.DMSDegreesValueConverter Converter for degrees:minutes:seconds format.
static class	ValueConverter.HMSDegreesValueConverter Converter for hours:minute:seconds format.
static class	ValueConverter.UnitValueConverter ValueConverter class which scales by a given factor (represents a particular unit).

Constructor Summary

Constructors

Constructor and Description
ValueConverter(String name) Constructor.

Method Summary

Modifier and Type	Method and Description
abstract double	convertValue(String sval) Converts a string value to a numeric for this format
String	getName() Returns format name.
String	toString()
abstract String	unconvertValue(double dval) Converts a numeric value to a string value for this format.

Methods inherited from class java.lang.Object

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

Constructor Detail

ValueConverter

public ValueConverter(String name)

Constructor.

Parameters:

name - format name (suitable for display in a combo box)

Method Detail

convertValue

public abstract double convertValue(String sval)

Converts a string value to a numeric for this format

Parameters:

sval - string value

Returns:

numeric equivalent of sval

Throws:

IllegalArgumentException - if sval doesn't make sense to this converter

unconvertValue

public abstract String unconvertValue(double dval)

Converts a numeric value to a string value for this format.

Parameters:

dval - numeric value

Returns:

string representation of dval

getName

public String getName()

Returns format name.

Returns:

name

toString

public String toString()

Overrides:

toString in class Object