net.sf.jguiraffe.transform

Class DoubleTransformer

java.lang.Object

net.sf.jguiraffe.transform.NumberTransformerBase<T>

net.sf.jguiraffe.transform.AbstractDecimalTransformer<Double>

net.sf.jguiraffe.transform.DoubleTransformer

All Implemented Interfaces:

Transformer, Validator

public final class DoubleTransformer
extends AbstractDecimalTransformer<Double>

A specialized number transformer implementation that deals with numbers of type java.lang.Double.

This class implements the abstract methods defined by its super classes in a way suitable for java.lang.Double objects. It does not define any new properties or error messages. Refer to the documentation of NumberTransformerBase for a list of all supported properties and possible error messages.

Version:

$Id: DoubleTransformer.java 205 2012-01-29 18:29:57Z oheger $

Author:

Oliver Heger

Field Summary

Fields inherited from class net.sf.jguiraffe.transform.NumberTransformerBase

PROP_MAXIMUM, PROP_MINIMUM

Constructor Summary

Constructors

Constructor and Description
DoubleTransformer()

Method Summary

Modifier and Type	Method and Description
protected Double	convert(Number n) Converts the specified number into a java.lang.Double.
protected Double	fetchProperty(org.apache.commons.configuration.Configuration config, String property, Double defaultValue) Returns a configuration property of type Double.

Methods inherited from class net.sf.jguiraffe.transform.AbstractDecimalTransformer

createFormat

Methods inherited from class net.sf.jguiraffe.transform.NumberTransformerBase

errorResult, getMaximum, getMinimum, isNumberValid, isValid, setMaximum, setMinimum, transform, transformToNumber

Methods inherited from class java.lang.Object

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

Constructor Detail

DoubleTransformer

public DoubleTransformer()

Method Detail

convert

protected Double convert(Number n)

Converts the specified number into a java.lang.Double. A range check will be performed.

Specified by:

convert in class NumberTransformerBase<Double>

Parameters:

n - the number to be converted

Returns:

the converted number

Throws:

IllegalArgumentException - if the number cannot be converted into a Double

fetchProperty

protected Double fetchProperty(org.apache.commons.configuration.Configuration config,
                               String property,
                               Double defaultValue)

Returns a configuration property of type Double.

Specified by:

fetchProperty in class NumberTransformerBase<Double>

Parameters:

config - the configuration

property - the property

defaultValue - the default value

Returns:

the value of the property