ValueConverter (Starjava VO API)

java.lang.Object
- uk.ac.starlink.vo.ValueConverter

Direct Known Subclasses:

ValueConverter.DMSDegreesValueConverter, ValueConverter.HMSDegreesValueConverter, ValueConverter.UnitValueConverter
```
public abstract class ValueConverter
extends java.lang.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	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 Description

ValueConverter(java.lang.String name)
Constructor.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract double`	`convertValue(java.lang.String sval)`	Converts a string value to a numeric for this format
`java.lang.String`	`getName()`	Returns format name.
`java.lang.String`	`toString()`
`abstract java.lang.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(java.lang.String name)
```
    Constructor.
    
    Parameters:
    
    name - format name (suitable for display in a combo box)
- Method Detail
  - convertValue
```
public abstract double convertValue(java.lang.String sval)
```
    Converts a string value to a numeric for this format
    
    Parameters:
    
    sval - string value
    
    Returns:
    
    numeric equivalent of sval
    
    Throws:
    
    java.lang.IllegalArgumentException - if sval doesn't make sense to this converter
  - unconvertValue
```
public abstract java.lang.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 java.lang.String getName()
```
    Returns format name.
    
    Returns:
    
    name
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object