org.springframework.data.redis.hash

Class ObjectHashMapper

java.lang.Object

org.springframework.data.redis.hash.ObjectHashMapper

All Implemented Interfaces:

HashMapper<Object,byte[],byte[]>

public class ObjectHashMapper
extends Object
implements HashMapper<Object,byte[],byte[]>

HashMapper based on MappingRedisConverter. Supports nested properties and simple types like String.

 
 class Person {

   String firstname;
   String lastname;

   List<String> nicknames;
   List<Person> coworkers;

   Address address;
 }
 
 

The above is represented as:

 
 _class=org.example.Person
 firstname=rand
 lastname=al'thor
 coworkers.[0].firstname=mat
 coworkers.[0].nicknames.[0]=prince of the ravens
 coworkers.[1].firstname=perrin
 coworkers.[1].address.city=two rivers
 
 

Since:

1.8

Author:

Christoph Strobl, Mark Paluch

Constructor Summary

Constructors

Constructor and Description
ObjectHashMapper() Creates new ObjectHashMapper.
ObjectHashMapper(CustomConversions customConversions) Deprecated. since 2.0, use ObjectHashMapper(org.springframework.data.convert.CustomConversions).
ObjectHashMapper(CustomConversions customConversions) Creates new ObjectHashMapper.

Method Summary

Modifier and Type	Method and Description
Object	fromHash(Map<byte[],byte[]> hash) Convert a hash (map) to an object.
<T> T	fromHash(Map<byte[],byte[]> hash, Class<T> type) Convert a hash (map) to an object and return the casted result.
Map<byte[],byte[]>	toHash(Object source) Convert an object to a map that can be used with Redis hashes.

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectHashMapper

public ObjectHashMapper()

Creates new ObjectHashMapper.

ObjectHashMapper

@Deprecated
public ObjectHashMapper(CustomConversions customConversions)

Deprecated. since 2.0, use ObjectHashMapper(org.springframework.data.convert.CustomConversions).

Creates new ObjectHashMapper.

Parameters:

customConversions - can be null.

ObjectHashMapper

public ObjectHashMapper(@Nullable
                        CustomConversions customConversions)

Creates new ObjectHashMapper.

Parameters:

customConversions - can be null.

Since:

2.0

Method Detail

toHash

public Map<byte[],byte[]> toHash(Object source)

Description copied from interface: HashMapper

Convert an object to a map that can be used with Redis hashes.

Specified by:

toHash in interface HashMapper<Object,byte[],byte[]>

Returns:

fromHash

public Object fromHash(Map<byte[],byte[]> hash)

Description copied from interface: HashMapper

Convert a hash (map) to an object.

Specified by:

fromHash in interface HashMapper<Object,byte[],byte[]>

Returns:

fromHash

public <T> T fromHash(Map<byte[],byte[]> hash,
                      Class<T> type)

Convert a hash (map) to an object and return the casted result.

Type Parameters:

T -

Parameters:

hash -

type -

Returns: