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com.vaadin.data.util.converter.
Class ReverseConverter<PRESENTATION,MODEL>
- java.lang.Object
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- com.vaadin.data.util.converter.ReverseConverter<PRESENTATION,MODEL>
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Type Parameters:
MODEL- The source typePRESENTATION- The target typeAll Implemented Interfaces:
Converter<PRESENTATION,MODEL>, Serializable
public class ReverseConverter<PRESENTATION,MODEL> extends Object implements Converter<PRESENTATION,MODEL>A converter that wraps another
Converterand reverses source and target types.Since:
7.0
Author:
Vaadin Ltd
See Also:
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Nested Class Summary
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Nested classes/interfaces inherited from interface com.vaadin.data.util.converter.Converter
Converter.ConversionException
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Constructor Summary
Constructors Constructor and Description ReverseConverter(Converter<MODEL,PRESENTATION> converter)Creates a converter from source to target based on a converter that converts from target to source.
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Method Summary
All Methods Modifier and Type Method and Description MODELconvertToModel(PRESENTATION value, Class<? extends MODEL> targetType, Locale locale)Converts the given value from target type to source type.
PRESENTATIONconvertToPresentation(MODEL value, Class<? extends PRESENTATION> targetType, Locale locale)Converts the given value from source type to target type.
Class<MODEL>getModelType()The source type of the converter.
Class<PRESENTATION>getPresentationType()The target type of the converter.
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Constructor Detail
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ReverseConverter
public ReverseConverter(Converter<MODEL,PRESENTATION> converter)Creates a converter from source to target based on a converter that converts from target to source.
Parameters:
converter- The converter to use in a reverse fashion
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Method Detail
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convertToModel
public MODEL convertToModel(PRESENTATION value, Class<? extends MODEL> targetType, Locale locale) throws Converter.ConversionExceptionDescription copied from interface:
ConverterConverts the given value from target type to source type.
A converter can optionally use locale to do the conversion.
A converter should in most cases be symmetric so chainingConverter.convertToPresentation(Object, Class, Locale)andConverter.convertToModel(Object, Class, Locale)should return the original value.Specified by:
convertToModelin interfaceConverter<PRESENTATION,MODEL>Parameters:
value- The value to convert, compatible with the target type. Can be nulltargetType- The requested type of the return valuelocale- The locale to use for conversion. Can be null.Returns:
The converted value compatible with the source type
Throws:
Converter.ConversionException- If the value could not be converted
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convertToPresentation
public PRESENTATION convertToPresentation(MODEL value, Class<? extends PRESENTATION> targetType, Locale locale) throws Converter.ConversionExceptionDescription copied from interface:
ConverterConverts the given value from source type to target type.
A converter can optionally use locale to do the conversion.
A converter should in most cases be symmetric so chainingConverter.convertToPresentation(Object, Class, Locale)andConverter.convertToModel(Object, Class, Locale)should return the original value.Specified by:
convertToPresentationin interfaceConverter<PRESENTATION,MODEL>Parameters:
value- The value to convert, compatible with the target type. Can be nulltargetType- The requested type of the return valuelocale- The locale to use for conversion. Can be null.Returns:
The converted value compatible with the source type
Throws:
Converter.ConversionException- If the value could not be converted
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getModelType
public Class<MODEL> getModelType()Description copied from interface:
ConverterThe source type of the converter. Values of this type can be passed to
Converter.convertToPresentation(Object, Class, Locale).Specified by:
getModelTypein interfaceConverter<PRESENTATION,MODEL>Returns:
The source type
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getPresentationType
public Class<PRESENTATION> getPresentationType()Description copied from interface:
ConverterThe target type of the converter. Values of this type can be passed to
Converter.convertToModel(Object, Class, Locale).Specified by:
getPresentationTypein interfaceConverter<PRESENTATION,MODEL>Returns:
The target type
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