Class StrutsTypeConverter
- All Implemented Interfaces:
- TypeConverter
Base class for type converters used in Struts. This class provides two abstract methods that are used to convert both to and from strings -- the critical functionality that is core to Struts's type conversion system.
Type converters do not have to use this class. It is merely a helper base class, although it is recommended that you use this class as it provides the common type conversion contract required for all web-based type conversion.
 There's a hook (fall back method) called performFallbackConversion of which
 could be used to perform some fallback conversion if convertValue method of this
 failed. By default it just ask its super class (Ognl's DefaultTypeConverter) to do the conversion.
 
To allow the framework to recognize that a conversion error has occurred, throw an StrutsException or preferable a TypeConversionException.
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Field SummaryFields inherited from class org.apache.struts2.conversion.impl.DefaultTypeConverterMILLISECOND_FORMATFields inherited from interface org.apache.struts2.conversion.TypeConverterNO_CONVERSION_POSSIBLE
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Constructor SummaryConstructors
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Method SummaryModifier and TypeMethodDescriptionabstract ObjectconvertFromString(Map context, String[] values, Class toClass) Converts one or more String values to the specified class.abstract StringconvertToString(Map context, Object o) Converts the specified object to a String.convertValue(Map context, Object o, Class toClass) protected ObjectperformFallbackConversion(Map context, Object o, Class toClass) Hook to perform a fallback conversion if every default options failed.Methods inherited from class org.apache.struts2.conversion.impl.DefaultTypeConverterbigDecValue, bigIntValue, booleanValue, convertValue, convertValue, doubleValue, enumValue, getLocale, getTypeConverter, longValue, setContainer, stringValue, stringValue
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Constructor Details- 
StrutsTypeConverterpublic StrutsTypeConverter()
 
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Method Details- 
convertValue- Overrides:
- convertValuein class- DefaultTypeConverter
 
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performFallbackConversionHook to perform a fallback conversion if every default options failed. By default this will ask Ognl's DefaultTypeConverter (of which this class extends) to perform the conversion.- Parameters:
- context- the action context
- o- object to be converted
- toClass- the class to convert to
- Returns:
- The fallback conversion
 
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convertFromStringConverts one or more String values to the specified class.- Parameters:
- context- the action context
- values- the String values to be converted, such as those submitted from an HTML form
- toClass- the class to convert to
- Returns:
- the converted object
 
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convertToStringConverts the specified object to a String.- Parameters:
- context- the action context
- o- the object to be converted
- Returns:
- the converted String
 
 
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