Package io.trino.plugin.redis.decoder.hash

Class HashRedisRowDecoder

java.lang.Object

io.trino.plugin.redis.decoder.hash.HashRedisRowDecoder

All Implemented Interfaces:

RowDecoder, RedisRowDecoder

public class HashRedisRowDecoder
extends Object
implements RedisRowDecoder

The row decoder for the Redis values that are stored in Hash format.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	NAME

Constructor Summary

Constructors

Constructor	Description
HashRedisRowDecoder(Map<DecoderColumnHandle,RedisFieldDecoder<String>> fieldDecoders)

Method Summary

Modifier and Type	Method	Description
Optional<Map<DecoderColumnHandle,FieldValueProvider>>	decodeRow(byte[] data)
Optional<Map<DecoderColumnHandle,FieldValueProvider>>	decodeRow(Map<String,String> dataMap)	Decodes a given map into field values.

Methods inherited from class java.lang.Object

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

Field Details

NAME

public static final String NAME

See Also:

• Constant Field Values

Constructor Details

HashRedisRowDecoder

public HashRedisRowDecoder(Map<DecoderColumnHandle,RedisFieldDecoder<String>> fieldDecoders)

Method Details

decodeRow

public Optional<Map<DecoderColumnHandle,FieldValueProvider>> decodeRow(Map<String,String> dataMap)

Description copied from interface: RedisRowDecoder

Decodes a given map into field values.

Specified by:

decodeRow in interface RedisRowDecoder

Parameters:

dataMap - The row data as fields map

Returns:

Returns mapping from column handle to decoded value. Unmapped columns will be reported as null. Optional.empty() signals decoding error.

decodeRow

public Optional<Map<DecoderColumnHandle,FieldValueProvider>> decodeRow(byte[] data)

Specified by:

decodeRow in interface RowDecoder