lumis.util.converter
Class AbstractConverter

java.lang.Object
  lumis.util.converter.AbstractConverter

All Implemented Interfaces:

IConverter

Direct Known Subclasses:

AbstractSourceConverter, BooleanConverter, CollectionConverter, DateTimeConverter, FileDataType.FileDataConverter, FilesDataType.FilesDataConverter, NumberConverter, PageDataType.PageDataConverter, ResourcesDataType.ResourcesDataConverter

@StableMinor(version="5.5",
             sinceVersion="4.0")
public abstract class AbstractConverter
extends Object
implements IConverter

This is a abstract converter where a default locale and pattern may be specified and has fallback conversion capability.

If the convertion implementation does not support the requested type, this converter falls back to try to convert using ConvertUtil.convert(Class, Object, Locale, String).

Since:

4.0.4

Constructor Summary

AbstractConverter()

Method Summary

<T> T	convert(Class<T> type, Object value) Converts the specified input object into an output object of the specified type.
<T> T	convert(Class<T> type, Object value, Locale locale) Converts the specified input object into an output object of the specified type.
<T> T	convert(Class<T> type, Object value, Locale locale, String pattern) Converts the specified input object into an output object of the specified type.
protected abstract <T> T	doConversion(Class<T> type, Object value, Locale locale, String pattern) Converts the specified input object into an output object of the specified type.
protected boolean	doesNullValueReturnNull()
protected boolean	doesValueInstanceOfTypeReturnValue()
Locale	getDefaultLocale()
String	getDefaultPattern()
void	setDefaultLocale(Locale defaultLocale)
void	setDefaultPattern(String defaultPattern)
protected void	setFallbackToRegisteredConverters(boolean fallbackToRegisteredConverters) Sets if the registered converters should be tried if this converter does not know how to complete the conversion.
protected boolean	shouldFallbackToRegisteredConverters() Indicates if the registered converters should be tried if this converter does not know how to complete the conversion.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractConverter

public AbstractConverter()

Method Detail

getDefaultLocale

public Locale getDefaultLocale()

setDefaultLocale

public void setDefaultLocale(Locale defaultLocale)

getDefaultPattern

public String getDefaultPattern()

setDefaultPattern

public void setDefaultPattern(String defaultPattern)

doesNullValueReturnNull

protected boolean doesNullValueReturnNull()

doesValueInstanceOfTypeReturnValue

protected boolean doesValueInstanceOfTypeReturnValue()

shouldFallbackToRegisteredConverters

protected boolean shouldFallbackToRegisteredConverters()

Indicates if the registered converters should be tried if this converter does not know how to complete the conversion.

Returns:

true if should fallback to registered converters, false otherwise.

Since:

4.0.11

setFallbackToRegisteredConverters

protected void setFallbackToRegisteredConverters(boolean fallbackToRegisteredConverters)

Sets if the registered converters should be tried if this converter does not know how to complete the conversion.

Note that if this property is set to false, it is important not to fallback to the registered converters, since it may cause an infinite loop.

Parameters:

fallbackToRegisteredConverters - the value to set.

Since:

4.0.11

doConversion

protected abstract <T> T doConversion(Class<T> type,
                                      Object value,
                                      Locale locale,
                                      String pattern)
                           throws UnsupportedConversionTypeException

Converts the specified input object into an output object of the specified type.

Type Parameters:

T - generics support for the data type specified.

Parameters:

type - data type to which the value should be converted.

value - the input value to be converted.

locale - locale to be used during conversion, if necessary.

pattern - converter specific conversion pattern, to be used during conversion, if necessary.

Throws:

UnsupportedConversionTypeException - if this converter does not supports converting to the specified type.

Since:

4.0.4

convert

public <T> T convert(Class<T> type,
                     Object value,
                     Locale locale,
                     String pattern)

Description copied from interface: IConverter

Converts the specified input object into an output object of the specified type.

Specified by:

convert in interface IConverter

Type Parameters:

T - generics support for the data type specified.

Parameters:

type - data type to which the value should be converted.

value - the input value to be converted.

locale - locale to be used during conversion, if necessary.

pattern - converter specific conversion pattern, to be used during conversion, if necessary.

convert

public <T> T convert(Class<T> type,
                     Object value,
                     Locale locale)

Description copied from interface: IConverter

Converts the specified input object into an output object of the specified type.

Specified by:

convert in interface IConverter

Type Parameters:

T - generics support for the data type specified.

Parameters:

type - data type to which the value should be converted.

value - the input value to be converted.

locale - locale to be used during conversion

convert

public <T> T convert(Class<T> type,
                     Object value)

Description copied from interface: IConverter

Converts the specified input object into an output object of the specified type.

Specified by:

convert in interface IConverter

Type Parameters:

T - generics support for the data type specified.

Parameters:

type - data type to which the value should be converted.

value - the input value to be converted.