com.tomtom.speedtools.mongodb.mappers

Class IdentityMapper<T>

java.lang.Object

com.tomtom.speedtools.mongodb.mappers.Mapper<T>

com.tomtom.speedtools.mongodb.mappers.IdentityMapper<T>

public class IdentityMapper<T>
extends Mapper<T>

Mapper where values are equal to db values.

Method Summary

Modifier and Type	Method and Description
T	fromDb(Object dbValue) Transform a database value to a typed Java object.
static <T> IdentityMapper<T>	getInstance()
Object	toDb(T value) Transform a typed Java object into its database representation.

Methods inherited from class com.tomtom.speedtools.mongodb.mappers.Mapper

initialize

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

@Nonnull
public static <T> IdentityMapper<T> getInstance()

toDb

@Nullable
public Object toDb(@Nullable
                             T value)
                      throws MapperException

Description copied from class: Mapper

Transform a typed Java object into its database representation.

Specified by:

toDb in class Mapper<T>

Parameters:

value - Value to transform.

Returns:

Database representation of value, or null if value was null.

Throws:

MapperException - Thrown if the value could not be mapped.

fromDb

@Nullable
public T fromDb(@Nullable
                          Object dbValue)
                   throws MapperException

Description copied from class: Mapper

Transform a database value to a typed Java object.

Specified by:

fromDb in class Mapper<T>

Parameters:

dbValue - Database value to be transformed.

Returns:

Java object, or null of dbValue was null.

Throws:

MapperException - Thrown if the database value could not be transformed to a Java object.