Package org.springframework.expression.spel.support

Class StandardTypeConverter

java.lang.Object
org.springframework.expression.spel.support.StandardTypeConverter
All Implemented Interfaces:
TypeConverter
public class StandardTypeConverter extends Object implements TypeConverter
Default implementation of the TypeConverter interface, delegating to a core Spring ConversionService.
Since:
3.0
Author:
Juergen Hoeller, Andy Clement
See Also:
  • ConversionService

  • Constructor Summary

    Constructors
    Constructor
    Description
    StandardTypeConverter()
    Create a StandardTypeConverter for the default ConversionService.
    StandardTypeConverter(Supplier<org.springframework.core.convert.ConversionService> conversionService)
    Create a StandardTypeConverter for the given ConversionService.
    StandardTypeConverter(org.springframework.core.convert.ConversionService conversionService)
    Create a StandardTypeConverter for the given ConversionService.

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    canConvert(org.springframework.core.convert.TypeDescriptor sourceType, org.springframework.core.convert.TypeDescriptor targetType)
    Return true if the type converter can convert the specified type to the desired target type.
    Object
    convertValue(Object value, org.springframework.core.convert.TypeDescriptor sourceType, org.springframework.core.convert.TypeDescriptor targetType)
    Convert (or coerce) a value from one type to another, for example from a boolean to a String.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • StandardTypeConverter

      public StandardTypeConverter()
      Create a StandardTypeConverter for the default ConversionService.
      See Also:
      • DefaultConversionService.getSharedInstance()

    • StandardTypeConverter

      public StandardTypeConverter(org.springframework.core.convert.ConversionService conversionService)
      Create a StandardTypeConverter for the given ConversionService.
      Parameters:
      conversionService - the ConversionService to delegate to

    • StandardTypeConverter

      public StandardTypeConverter(Supplier<org.springframework.core.convert.ConversionService> conversionService)
      Create a StandardTypeConverter for the given ConversionService.
      Parameters:
      conversionService - a Supplier for the ConversionService to delegate to
      Since:
      5.3.11

  • Method Details

    • canConvert

      public boolean canConvert(@Nullable org.springframework.core.convert.TypeDescriptor sourceType, org.springframework.core.convert.TypeDescriptor targetType)
      Description copied from interface: TypeConverter
      Return true if the type converter can convert the specified type to the desired target type.
      Specified by:
      canConvert in interface TypeConverter
      Parameters:
      sourceType - a type descriptor that describes the source type
      targetType - a type descriptor that describes the requested result type
      Returns:
      true if that conversion can be performed

    • convertValue

      @Nullable public Object convertValue(@Nullable Object value, @Nullable org.springframework.core.convert.TypeDescriptor sourceType, org.springframework.core.convert.TypeDescriptor targetType)
      Description copied from interface: TypeConverter
      Convert (or coerce) a value from one type to another, for example from a boolean to a String.

      The TypeDescriptor parameters enable support for typed collections: A caller may prefer a List<Integer>, for example, rather than simply any List.

      Specified by:
      convertValue in interface TypeConverter
      Parameters:
      value - the value to be converted
      sourceType - a type descriptor that supplies extra information about the source object
      targetType - a type descriptor that supplies extra information about the requested result type
      Returns:
      the converted value