org.chromattic.spi.type
Class SimpleTypeProvider<I,E>

java.lang.Object
  org.chromattic.spi.type.SimpleTypeProvider<I,E>

Type Parameters:

I - the generic internal type

E - the generic external type

Direct Known Subclasses:

SimpleTypeProvider.BINARY, SimpleTypeProvider.BOOLEAN, SimpleTypeProvider.DATE, SimpleTypeProvider.DOUBLE, SimpleTypeProvider.LONG, SimpleTypeProvider.NAME, SimpleTypeProvider.PATH, SimpleTypeProvider.STRING

public abstract class SimpleTypeProvider<I,E>
extends java.lang.Object

The base class for the simple type Service Provider Interface. A provider performs a bidiectional conversion between an internal type and an external type, in addition a provider must be able to convert a string value to an external representation and vice-versa.

Version:

$Revision$

Author:

Julien Viet

Nested Class Summary

static class	SimpleTypeProvider.BINARY<E>
static class	SimpleTypeProvider.BOOLEAN<E>
static class	SimpleTypeProvider.DATE<E>
static class	SimpleTypeProvider.DOUBLE<E>
static class	SimpleTypeProvider.LONG<E>
static class	SimpleTypeProvider.NAME<E>
static class	SimpleTypeProvider.PATH<E>
static class	SimpleTypeProvider.STRING<E>

Method Summary

abstract E	fromString(java.lang.String s) Provide an external representation of a string value.
abstract E	getExternal(I i) Provide an external representation of an internal value.
abstract java.lang.Class<E>	getExternalType() Returns the external class type.
abstract I	getInternal(E e) Provide an internal representation of an external value.
abstract java.lang.Class<I>	getInternalType() Returns the internal class type.
abstract java.lang.String	toString(E e) Provide a string representation of an external value.

Methods inherited from class java.lang.Object

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

Method Detail

getInternalType

public abstract java.lang.Class<I> getInternalType()

Returns the internal class type.

Returns:

the internal class type

getExternalType

public abstract java.lang.Class<E> getExternalType()

Returns the external class type.

Returns:

the external class type

getInternal

public abstract I getInternal(E e)
                       throws TypeConversionException

Provide an internal representation of an external value.

Parameters:

e - the external value

Returns:

the internal value

Throws:

TypeConversionException - anything that would prevent the conversion

getExternal

public abstract E getExternal(I i)
                       throws TypeConversionException

Provide an external representation of an internal value.

Parameters:

i - the internal value

Returns:

the external value

Throws:

TypeConversionException - anything that would prevent the conversion

fromString

public abstract E fromString(java.lang.String s)
                      throws TypeConversionException

Provide an external representation of a string value.

Parameters:

s - the string value

Returns:

the external value

Throws:

TypeConversionException - anything that would prevent the conversion

toString

public abstract java.lang.String toString(E e)
                                   throws TypeConversionException

Provide a string representation of an external value.

Parameters:

e - the external value

Returns:

the string value

Throws:

TypeConversionException - anything that would prevent the conversion