net.sf.cuf.model.converter

Class DoubleStringConverter

java.lang.Object

net.sf.cuf.model.AbstractValueModel<OwnT>

net.sf.cuf.model.converter.AbstractTypeConverter<String,T>

net.sf.cuf.model.converter.AbstractNumberStringConverter<Double>

net.sf.cuf.model.converter.DoubleStringConverter

All Implemented Interfaces:

EventListener, ChangeListener, TypeConverter<String,Double>, DelegateAccess, ExternalUpdate, ValueModel<String>

public class DoubleStringConverter
extends AbstractNumberStringConverter<Double>

A DoubleStringConverter is taking a Double as it's subject value and converting it to an String as its own value.

Constructor Summary

Constructors

Constructor and Description
DoubleStringConverter(ValueModel<Double> pSubject) Create a new Double-to-String converter where null is a valid value.
DoubleStringConverter(ValueModel<Double> pSubject, boolean pNullIsValid) Create a new Double-to-String converter.
DoubleStringConverter(ValueModel<Double> pSubject, NumberFormat pFormat) Create a new Double-to-String converter where null is a valid value.
DoubleStringConverter(ValueModel<Double> pSubject, NumberFormat pFormat, boolean pNullIsValid) Create a new Double-to-String converter.

Method Summary

Methods

Modifier and Type	Method and Description
protected Double	convertToNumber(String pOwnValue) convert the own string value to the number.
protected String	convertToString(Number pSubjectValue) Converts from a Number to the String by calling toString.

Methods inherited from class net.sf.cuf.model.converter.AbstractNumberStringConverter

convertOwnToSubjectValue, convertSubjectToOwnValue, getNullIsValid, setNullIsValid, setNullSubstitute

Methods inherited from class net.sf.cuf.model.converter.AbstractTypeConverter

dispose, getPropagateFailedConversions, getSubject, getSubjectValue, getSyncKey, getSyncMessage, getSyncState, getValue, getValue, isEditable, setPropagateFailedConversions, setSyncKey, setSyncMessage, setValue, stateChanged

Methods inherited from class net.sf.cuf.model.AbstractValueModel

addChangeListener, booleanValue, checkDisposed, doubleValue, fireStateChanged, floatValue, getDependents, getName, intValue, isDisposed, isInSetValue, isSetForced, longValue, onChangeSend, removeChangeListener, retractInterestsFor, setInSetValue, setName, setObjectValue, setValue, setValue, setValue, setValue, setValue, setValue, setValueForced, signalExternalUpdate, stringValue

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.cuf.model.converter.TypeConverter

getSyncKey, getSyncMessage, getSyncState, setSyncKey, setSyncMessage

Methods inherited from interface net.sf.cuf.model.ValueModel

addChangeListener, booleanValue, dispose, doubleValue, floatValue, getDependents, getName, getValue, intValue, isDisposed, isEditable, isSetForced, longValue, onChangeSend, removeChangeListener, retractInterestsFor, setName, setObjectValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValueForced, stringValue

Constructor Detail

DoubleStringConverter

public DoubleStringConverter(ValueModel<Double> pSubject)

Create a new Double-to-String converter where null is a valid value.

Parameters:

pSubject - the ValueModel holding the original value

DoubleStringConverter

public DoubleStringConverter(ValueModel<Double> pSubject,
                     boolean pNullIsValid)

Create a new Double-to-String converter.

Parameters:

pSubject - the ValueModel holding the original value

pNullIsValid - marker if we should use null as an alternative value if the conversion fails

DoubleStringConverter

public DoubleStringConverter(ValueModel<Double> pSubject,
                     NumberFormat pFormat)

Create a new Double-to-String converter where null is a valid value.

Parameters:

pSubject - the ValueModel holding the original value

pFormat - the number formatter, may be null

DoubleStringConverter

public DoubleStringConverter(ValueModel<Double> pSubject,
                     NumberFormat pFormat,
                     boolean pNullIsValid)

Create a new Double-to-String converter.

Parameters:

pSubject - the ValueModel holding the original value

pFormat - the number formatter, may be null

pNullIsValid - marker if we should use null as an alternative value if the conversion fails

Method Detail

convertToString

protected String convertToString(Number pSubjectValue)

Converts from a Number to the String by calling toString. Override to provide different behaviour.

Overrides:

convertToString in class AbstractNumberStringConverter<Double>

Parameters:

pSubjectValue - the value in the source type (Number), never null

Returns:

value in this value model's type (String)

convertToNumber

protected Double convertToNumber(String pOwnValue)
                          throws NumberFormatException

convert the own string value to the number. Implement this method to create your number instance, e.g. like return new Integer( ownValue); . If the conversion is not possible, you can throw a NumberFormatException which will be converted into a ConversionException with the correct substitute values.

Specified by:

convertToNumber in class AbstractNumberStringConverter<Double>

Parameters:

pOwnValue - the value as a string

Returns:

the parsed number in its desired class

Throws:

NumberFormatException - if the string value is not parsable into a number