org.springframework.cloud.gcp.data.datastore.core.convert

Class DefaultDatastoreEntityConverter

java.lang.Object

org.springframework.cloud.gcp.data.datastore.core.convert.DefaultDatastoreEntityConverter

All Implemented Interfaces:

DatastoreEntityConverter, org.springframework.data.convert.EntityReader<Object,com.google.cloud.datastore.BaseEntity>, org.springframework.data.convert.EntityWriter<Object,com.google.cloud.datastore.BaseEntity.Builder>

public class DefaultDatastoreEntityConverter
extends Object
implements DatastoreEntityConverter

A class for object to entity and entity to object conversions.

Since:

1.1

Author:

Dmitry Solomakha, Chengyuan Zhao

Constructor Summary

Constructors

Constructor and Description
DefaultDatastoreEntityConverter(DatastoreMappingContext mappingContext, ObjectToKeyFactory objectToKeyFactory)
DefaultDatastoreEntityConverter(DatastoreMappingContext mappingContext, ReadWriteConversions conversions)

Method Summary

Modifier and Type	Method and Description
ReadWriteConversions	getConversions() Get the ReadWriteConversions used in this converter.
<R> R	read(Class<R> aClass, com.google.cloud.datastore.BaseEntity entity)
<T,R> Map<T,R>	readAsMap(Class<T> keyType, org.springframework.data.util.TypeInformation<R> componentType, com.google.cloud.datastore.BaseEntity entity) Read the entity as a Map.
void	write(Object source, com.google.cloud.datastore.BaseEntity.Builder sink)

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultDatastoreEntityConverter

public DefaultDatastoreEntityConverter(DatastoreMappingContext mappingContext,
                                       ObjectToKeyFactory objectToKeyFactory)

DefaultDatastoreEntityConverter

public DefaultDatastoreEntityConverter(DatastoreMappingContext mappingContext,
                                       ReadWriteConversions conversions)

Method Detail

getConversions

public ReadWriteConversions getConversions()

Description copied from interface: DatastoreEntityConverter

Get the ReadWriteConversions used in this converter.

Specified by:

getConversions in interface DatastoreEntityConverter

Returns:

the conversions used.

readAsMap

public <T,R> Map<T,R> readAsMap(Class<T> keyType,
                                org.springframework.data.util.TypeInformation<R> componentType,
                                com.google.cloud.datastore.BaseEntity entity)

Description copied from interface: DatastoreEntityConverter

Read the entity as a Map.

Specified by:

readAsMap in interface DatastoreEntityConverter

Type Parameters:

T - the type of the key in the map

R - the type of the value in the map

Parameters:

keyType - the key type of the map to be read.

componentType - the value type of the map, into which each field value will be converted.

entity - the entity from Cloud Datastore.

Returns:

a Map where the key values are the field names and the values the field values.

read

public <R> R read(Class<R> aClass,
                  com.google.cloud.datastore.BaseEntity entity)

Specified by:

read in interface org.springframework.data.convert.EntityReader<Object,com.google.cloud.datastore.BaseEntity>

write

public void write(Object source,
                  com.google.cloud.datastore.BaseEntity.Builder sink)

Specified by:

write in interface org.springframework.data.convert.EntityWriter<Object,com.google.cloud.datastore.BaseEntity.Builder>