org.apache.calcite.adapter.redis

Enum RedisDataType

java.lang.Object

java.lang.Enum<RedisDataType>

org.apache.calcite.adapter.redis.RedisDataType

All Implemented Interfaces:

Serializable, Comparable<RedisDataType>

public enum RedisDataType
extends Enum<RedisDataType>

All available data type for Redis.

Enum Constant Summary

Enum Constants

Enum Constant and Description
HASH Redis Hashes are maps between string fields and string values.
HYPER_LOG_LOG HyperLogLog is a probabilistic data structure used in order to count unique things.
LIST Redis Lists are simply lists of strings, sorted by insertion order.
PUBSUB Redis implementation of publish and subscribe paradigm.
SET Redis Sets are an unordered collection of Strings.
SORTED_SET Redis Sorted Sets are, similarly to Redis Sets, non repeating collections of Strings.
STRING Strings are the most basic kind of Redis value.

Method Summary

Modifier and Type	Method and Description
static RedisDataType	fromTypeName(String typeName)
String	getTypeName()
static RedisDataType	valueOf(String name) Returns the enum constant of this type with the specified name.
static RedisDataType[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

STRING

public static final RedisDataType STRING

Strings are the most basic kind of Redis value. Redis Strings are binary safe, this means that a Redis string can contain any kind of data, for instance a JPEG image or a serialized Ruby object. A String value can be at max 512 Megabytes in length.

HASH

public static final RedisDataType HASH

Redis Hashes are maps between string fields and string values.

LIST

public static final RedisDataType LIST

Redis Lists are simply lists of strings, sorted by insertion order.

SET

public static final RedisDataType SET

Redis Sets are an unordered collection of Strings.

SORTED_SET

public static final RedisDataType SORTED_SET

Redis Sorted Sets are, similarly to Redis Sets, non repeating collections of Strings. The difference is that every member of a Sorted Set is associated with score, that is used in order to take the sorted set ordered, from the smallest to the greatest score. While members are unique, scores may be repeated.

HYPER_LOG_LOG

public static final RedisDataType HYPER_LOG_LOG

HyperLogLog is a probabilistic data structure used in order to count unique things.

PUBSUB

public static final RedisDataType PUBSUB

Redis implementation of publish and subscribe paradigm. Published messages are characterized into channels, without knowledge of what (if any) subscribers there may be. Subscribers express interest in one or more channels, and only receive messages that are of interest, without knowledge of what (if any) publishers there are.

Method Detail

values

public static RedisDataType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (RedisDataType c : RedisDataType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static RedisDataType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

fromTypeName

public static RedisDataType fromTypeName(String typeName)

getTypeName

public String getTypeName()