com.tomtom.speedtools.mongodb.mappers

Class ListMapper<T>

java.lang.Object

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

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

public class ListMapper<T>
extends Mapper<List<T>>

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ListMapper(Class<? extends Mapper<T>> elementMapperType, Mapper<T> elementMapper)

Method Summary

Modifier and Type	Method and Description
static <T> ListMapper<T>	create(Class<? extends Mapper<T>> elementMapperType)
static <T> ListMapper<T>	create(Mapper<T> elementMapper)
List<T>	fromDb(Object dbValue) Transform a database value to a typed Java object.
Mapper<T>	getElementMapper()
protected void	initialize(MapperRegistry registry) Initialize the database mappers.
List<Object>	toDb(List<T> value) Transform a typed Java object into its database representation.

Methods inherited from class java.lang.Object

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

Constructor Detail

ListMapper

protected ListMapper(@Nullable
                     Class<? extends Mapper<T>> elementMapperType,
                     @Nullable
                     Mapper<T> elementMapper)

Method Detail

create

@Nonnull
public static <T> ListMapper<T> create(@Nonnull
                                                Class<? extends Mapper<T>> elementMapperType)

create

@Nonnull
public static <T> ListMapper<T> create(@Nonnull
                                                Mapper<T> elementMapper)

getElementMapper

@Nonnull
public Mapper<T> getElementMapper()

fromDb

public List<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<List<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.

toDb

@Nullable
public List<Object> toDb(@Nullable
                                   List<T> value)
                            throws MapperException

Description copied from class: Mapper

Transform a typed Java object into its database representation.

Specified by:

toDb in class Mapper<List<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.

initialize

protected void initialize(@Nonnull
                          MapperRegistry registry)
                   throws SchemaException

Description copied from class: Mapper

Initialize the database mappers.

Overrides:

initialize in class Mapper<List<T>>

Parameters:

registry - Registry with all mappers.

Throws:

SchemaException - Thrown if an error is encountered in one of the mappers. This prevents the system from booting with an incorrect mapper configuration.