TypeHandler (beanio 3.2.0 API)

All Known Subinterfaces:

ConfigurableTypeHandler

All Known Implementing Classes:

AbstractXmlCalendarTypeHandler, AbstractXmlDateTypeHandler, BigDecimalTypeHandler, BigIntegerTypeHandler, BooleanTypeHandler, ByteTypeHandler, CalendarTypeHandler, CharacterTypeHandler, DateTypeHandler, DateTypeHandlerSupport, DoubleTypeHandler, EnumTypeHandler, FloatTypeHandler, IntegerTypeHandler, LongTypeHandler, NumberTypeHandler, ShortTypeHandler, StringTypeHandler, TemporalAccessorTypeHandler, ToStringEnumTypeHandler, URLTypeHandler, UUIDTypeHandler, XmlBooleanTypeHandler, XmlCalendarDateTimeTypeHandler, XmlCalendarDateTypeHandler, XmlCalendarTimeTypeHandler, XmlDateTimeTypeHandler, XmlDateTypeHandler, XmlTimeTypeHandler
```
public interface TypeHandler
```
A TypeHandler is used to convert field text into a Java object and vice versa.
Implementations should be thread-safe if multiple threads may concurrently process the same stream type. All included BeanIO type handlers are thread safe.

Since:

1.0

Field Summary

Fields
Modifier and Type	Field	Description
`static java.lang.String`	`NIL`	This constant can be returned from `format(Object)` for XML formatted streams to indicate a nillable element should be set to nil even if the field's minimum occurrences is zero.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.lang.String`	`format(java.lang.Object value)`	Formats a Java object into field text.
`java.lang.Class<?>`	`getType()`	Returns the class type supported by this handler.
`java.lang.Object`	`parse(java.lang.String text)`	Parses field text into a Java object.

- Field Detail
  - NIL
```
static final java.lang.String NIL
```
    This constant can be returned from format(Object) for XML formatted streams to indicate a nillable element should be set to nil even if the field's minimum occurrences is zero. In all other cases, if NIL is returned, the formatted value is treated as null.
- Method Detail
  - parse
```
java.lang.Object parse(java.lang.String text)
                throws TypeConversionException
```
    Parses field text into a Java object.
    
    Parameters:
    
    text - the field text to parse, which may be null if the field was not passed in the record
    
    Returns:
    
    the parsed Java object
    
    Throws:
    
    TypeConversionException - if the text cannot be parsed
  - format
```
java.lang.String format(java.lang.Object value)
```
    Formats a Java object into field text.
    
    Parameters:
    
    value - the Java object to format, which may be null
    
    Returns:
    
    the formatted field text, or null to indicate the value is not present, or NIL for XML formatted streams
  - getType
```
java.lang.Class<?> getType()
```
    Returns the class type supported by this handler. Primitive types should not be returned by this method- use the object equivalent instead.
    
    Returns:
    
    the class type supported by this handler