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com.vaadin.ui.declarative.converters.
Class DesignToStringConverter<TYPE>
- java.lang.Object
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- com.vaadin.ui.declarative.converters.DesignToStringConverter<TYPE>
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Type Parameters:
TYPE- Type of the data being converted.All Implemented Interfaces:
Converter<String,TYPE>,Serializablepublic class DesignToStringConverter<TYPE> extends Object implements Converter<String,TYPE>Utility class for
DesignAttributeHandlerthat deals with converting various types to string.Since:
7.4
Author:
Vaadin Ltd
See Also:
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Field Summary
Fields Modifier and Type Field Description static StringNULL_VALUE_REPRESENTATIONA string that corresponds to how a null value is stored.
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Constructor Summary
Constructors Constructor Description DesignToStringConverter(Class<? extends TYPE> type)Constructs the converter for a given type.
DesignToStringConverter(Class<? extends TYPE> type, String staticMethodName)Constructs the converter for a given type, giving the name of the public static method that does the conversion from String.
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Method Summary
All Methods Modifier and Type Method Description Result<TYPE>convertToModel(String value, ValueContext context)Converts the given value from model type to presentation type.
StringconvertToPresentation(TYPE value, ValueContext context)Converts the given value from presentation type to model type.
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Field Detail
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NULL_VALUE_REPRESENTATION
public static final String NULL_VALUE_REPRESENTATIONA string that corresponds to how a null value is stored.
See Also:
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Constructor Detail
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DesignToStringConverter
public DesignToStringConverter(Class<? extends TYPE> type)Constructs the converter for a given type. Implicitly requires that a static method
valueOf(String)is present in the type to do the conversion.Parameters:
type- Type of values to convert.
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DesignToStringConverter
public DesignToStringConverter(Class<? extends TYPE> type, String staticMethodName)Constructs the converter for a given type, giving the name of the public static method that does the conversion from String.
Parameters:
type- Type to convert.staticMethodName- Method to call when converting from String to this type. This must be public and static method that returns an object of passed type.
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Method Detail
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convertToModel
public Result<TYPE> convertToModel(String value, ValueContext context)Description copied from interface:
ConverterConverts the given value from model type to presentation type.
A converter can optionally use locale to do the conversion.
Specified by:
convertToModelin interfaceConverter<String,TYPE>Parameters:
value- The value to convert. Can be nullcontext- The value context for the conversion.Returns:
The converted value compatible with the source type
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convertToPresentation
public String convertToPresentation(TYPE value, ValueContext context)Description copied from interface:
ConverterConverts the given value from presentation type to model type.
A converter can optionally use locale to do the conversion.
Specified by:
convertToPresentationin interfaceConverter<String,TYPE>Parameters:
value- The value to convert. Can be nullcontext- The value context for the conversion.Returns:
The converted value compatible with the source type
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