com.jmethods.catatumbo

Interface Mapper

All Known Implementing Classes:

BigDecimalMapper, BooleanMapper, ByteArrayMapper, CalendarMapper, CatchAllMapper, CharArrayMapper, CharMapper, DateMapper, DecimalMapper, DoubleMapper, EnumMapper, FloatMapper, GeoLocationMapper, IntegerMapper, KeyMapper, ListMapper, LongMapper, MapMapper, SetMapper, ShortMapper, StringMapper

public interface Mapper

Contract for mapping model values to/from Cloud Datastore.

Author:

Sai Pullabhotla

Method Summary

Modifier and Type	Method and Description
com.google.cloud.datastore.ValueBuilder<?,?,?>	toDatastore(Object input) Maps the given Model object to native Cloud Datastore value.
Object	toModel(com.google.cloud.datastore.Value<?> input) Maps the given native Cloud Datastore value to equivalent model object.

Method Detail

toDatastore

com.google.cloud.datastore.ValueBuilder<?,?,?> toDatastore(Object input)

Maps the given Model object to native Cloud Datastore value.

Parameters:

input - the input to map

Returns:

the equivalent native value

Throws:

MappingException - if the input is not compatible.

toModel

Object toModel(com.google.cloud.datastore.Value<?> input)

Maps the given native Cloud Datastore value to equivalent model object.

Parameters:

input - the native Cloud Datastore value

Returns:

the equivalent model object

Throws:

MappingException - if the input is not compatible.