org.springframework.data.redis.support.collections

Interface RedisMap<K,V>

All Superinterfaces:

BoundKeyOperations<String>, ConcurrentMap<K,V>, Map<K,V>, RedisStore

All Known Implementing Classes:

DefaultRedisMap, RedisProperties

public interface RedisMap<K,V>
extends RedisStore, ConcurrentMap<K,V>

Map view of a Redis hash.

Author:

Costin Leau, Christoph Strobl

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Method Summary

Modifier and Type	Method and Description
Double	increment(K key, double delta) Increment value of the hash key by the given delta.
Long	increment(K key, long delta) Increment value of the hash key by the given delta.
Map.Entry<K,V>	randomEntry() Get a random entry from the hash.
K	randomKey() Get a random key from the hash.
Iterator<Map.Entry<K,V>>	scan()

Methods inherited from interface org.springframework.data.redis.support.collections.RedisStore

getOperations

Methods inherited from interface org.springframework.data.redis.core.BoundKeyOperations

expire, expire, expireAt, expireAt, getExpire, getKey, getType, persist, rename

Methods inherited from interface java.util.concurrent.ConcurrentMap

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Methods inherited from interface java.util.Map

clear, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, put, putAll, remove, size, values

Method Detail

increment

Long increment(K key,
               long delta)

Increment value of the hash key by the given delta.

Parameters:

key - must not be null.

delta -

Returns:

null if hash does not exist.

Since:

1.0

increment

Double increment(K key,
                 double delta)

Increment value of the hash key by the given delta.

Parameters:

key - must not be null.

delta -

Returns:

null if hash does not exist.

Since:

1.1

randomKey

K randomKey()

Get a random key from the hash.

Returns:

null if the hash does not exist.

Since:

2.6

randomEntry

@Nullable
Map.Entry<K,V> randomEntry()

Get a random entry from the hash.

Returns:

null if the hash does not exist.

Since:

2.6

scan

Iterator<Map.Entry<K,V>> scan()

Returns:

Since:

1.4