Next Level Redis With Spring Data (JavaDay2016)

Redis is one of the most popular Open Source Key Value Stores these days. Spring Data Redis Lead Christoph Strobl takes you on a tour through high availability and cluster scenarios. He explains Redis commands and data structures, object hash mapping and secondary indexes as well as the Spring Data Repository abstraction that let’s you seamlessly interact with Redis.

Transcript

1. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   1
   Next Level Redis
   With Spring
   Christoph Strobl
   @stroblchristoph
   JAVADAY KYIV 2016
   

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2. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   2
   

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3. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   3
   Remote
   Directory
   Server
   KeyValue Store
   Cache
   Queues
   Analytics
   Geo Indexing
   Session Store
   Distributed Locks
   Strings
   Hashes
   Lists
   Sets
   Sorted Sets
   HyperLogLog
   Transactions
   Pub/Sub
   Scripting
   

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4. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   4
   DataTypes & Commands
   

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5. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   5
   V A L U E
   SET
   GET
   K E Y
   STRLEN
   APPEND
   GETSET
   GETRANGE
   SETRANGE
   3 . 1 4 1
   INCR
   INCRBY
   DECR
   DECRBY
   INCRBYFLOAT
   DECRBYFLOAT
   SETNX
   Strings
   

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6. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   Arya
   6
   S T A R K
   LPUSH
   LPOP
   RPUSH
   RPOP
   LLEN
   LSET
   LGET
   LINSERT
   LRANGE
   LREM
   Lists
   Jon Bran
   

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7. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
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   7
   Sets
   L A N N I S T E R
   Tyrion
   Jaime
   Cersei
   SADD
   SPOP
   SREM
   SCARD
   SMEMBERS
   SISMEMBER
   Tywin
   

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8. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
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   8
   ZSets
   L A N N I S T E R
   Tywin
   Cersei
   Jaime 2
   1
   2
   Tyrion 3
   ZADD
   ZRANGE
   ZRANGEBYSCORE
   ZCARD
   ZCOUNT
   ZSCORE
   ZREM
   ZREVRANGEBYSCORE
   ZREVRANGE
   ZINCRBY
   score
   

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9. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   9
   Hashes
   D A E N E R Y S
   lastname
   occupation
   pet
   targaryen
   queen
   dragon
   HSET
   HGET
   HMSET
   HMGET
   HVALS
   HKEYS
   HDEL
   HLEN
   HGETALL
   

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10. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    10
    Geo
    W E S T E R O S
    GEOADD
    GEODIST
    GEOHASH
    GEOPOS Castle Black
    Winterfell
    King’s Landing
    13.361389, 38.115556
    15.087269, 37.502669
    13.583333, 37.316667
    347903…
    347909…
    347944…
    GEORADIUS
    GEORADIUSBYMEMBER
    ZREM = GEODEL ¯\_(ツ)_/¯
    

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11. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
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    11
    multi/exec
    MULTI
    EXEC
    SET key value
    GET key
    QUEUED
    QUEUED
    [OK, value]
    DISCARD
    OK
    

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12. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
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    12
    Single Node / HA / Cluster
    

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    13
    

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14. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    14
    

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15. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
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    15
    S
    S
    S
    

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16. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
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    16
    Slots:

    0 - 8192
    Slots:

    8993 - 16384
    

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17. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
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    17
    Spring Data Redis
    

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18. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    18
    Redis Driver

    Jedis / Lettuce
    Serializer
    Template
    Connection
    Factory
    String
    Jackson
    JDK Connection
    ClusterConnection
    

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19. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
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    19
    DEMO

    cluster commands
    

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20. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
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    20
    Object Hash Mapping
    

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21. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
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    21
    class Person {
    String id;
    String firstname;
    String lastname;
    Address address;
    }
    SET {person}:123
    {
    "id":123,
    "firstname":"jon",
    "lastname":"snow",
    "address": { "country":"the north" }
    }
    HMSET {person}:123
    _class org.example.Person
    id 123
    firstname jon
    lastname snow
    address.country the north
    GET {person}:123
    HGETALL {person}:123
    HGET {person}:123 id lastname
    HSET {person}:123 lastname doe
    HEXISTS {person}:123 age
    ...
    

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22. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    22
    DEMO

    Object Hash Mapping
    

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23. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    23
    Secondary Indexes
    

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    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    24
    class Person {
    String id;
    String firstname;
    String lastname;
    Address address;
    }
    HMSET {person}:123
    _class org.example.Person
    id 123
    firstname jon
    lastname snow
    address.country the north
    SADD {person}:firstname:jon 123
    SADD {person}:lastname:snow 123
    123
    {person}:firstname:jon
    101
    567
    721
    {person}:lastname:snow
    122
    133
    987
    SINTER {person}:firstname:jon {person}:lastname:snow
    SUNION {person}:firstname:jon {person}:lastname:snow
    

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25. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
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    25
    @RedisHash("{person}")
    class Person {
    @Id String id;
    @Indexed String firstname;
    @Indexed String lastname;
    Address address;
    }
    HMSET {person}:123 id 123 firstname john ...
    SADD {person}:firstname:john 123
    SADD {person}:lastname:snow 123
    SINTER {person}:firstname:jon {person}:lastname:snow
    interface PersonRepository extends CrudRepository {
    "
    "
    }
    repo.save(new Person("123", "john", "snow"));
    repo.update(
    newPartialUpdate("123", Person.class)
    .set("firstname", "jon"));
    HSET {person}:123 firstname jon
    SREM {person}:firstname:john 123
    SADD {person}:firstname:jon 123
    List findByFirstnameAndLastname(String firstname, String lastname);
    repo.findByFirstnameAndLastname("jon", "snow");
    HGETALL {person}:123
    

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26. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    26
    DEMO

    Redis Repositories
    

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27. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    27
    Expire Commands
    Custom Conversions
    SpEL based indexing
    References
    

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28. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    28
    CC BY 2.0 

    https://www.flickr.com/photos/crystalflickr/2317183342
    

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29. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    29
    Reactive Data Access
    Geo Indexes
    

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30. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    30
    @RedisHash("{person}")
    class Person {
    @Id String id;
    Address address;
    }
    HMSET {person}:123 id 123 firstname jon ...
    GEOADD {person}:address:location 15.087269 37.502669 123
    GEORADIUS {person}:address:location 15.0 37.0 200.0 km
    interface PersonRepository extends CrudRepository {
    "
    "
    }
    repo.save(new Person("123", "jon", "snow")
    .withAddress(
    new Address("winterfell",
    new Point(15.087269D, 37.502669D)))
    );
    List findByAddressLocationNear(Point location, Distance distance);
    repo.findByAddressLocationNear(
    new Point(15D, 37D),
    new Distance(200, Metrics.KILOMETERS));
    HGETALL {person}:123
    class Address {
    String city;
    @GeoIndexed Point location;
    }
    

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31. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
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    31
    public interface ReactiveStringCommands {
    "
    /**
    * Set {@literal value} for {@literal key}.
    *
    * @param key must not be {@literal null}.
    * @param value must not be {@literal null}.
    * @return
    */
    default Mono set(ByteBuffer key, ByteBuffer value) {
    return set(Mono.just(SetCommand.value(key).forKey(value)))
    .next().map(BooleanResponse::getOutput);
    }
    "
    /**
    * Execute each {@link SetCommand} separately.
    *
    * @param commands must not be {@literal null}.
    * @return
    */
    Flux> set(Publisher commands);
    "
    /**
    * Get single element stored at {@literal key}.
    *
    * @param key must not be {@literal null}.
    * @return empty {@link Mono} in case {@literal key} does not exist.
    */
    default Mono get(ByteBuffer key) {
    return get(Mono.just(new KeyCommand(key))).next().map((result) -> result.getOutput());
    }
    

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32. Unless otherwise indicated, these slides are © 2013-2016 Pivotal Software, Inc. and licensed under a
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
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