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Spring Batch Redis

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package com.redis.spring.batch.writer.operation;

import java.util.List;
import java.util.Map;
import java.util.function.Function;

import io.lettuce.core.RedisFuture;
import io.lettuce.core.api.async.BaseRedisAsyncCommands;
import io.lettuce.core.api.async.RedisHashAsyncCommands;

public class Hset extends AbstractOperation {

    private Function> map;

    public void setMap(Function> map) {
        this.map = map;
    }

    @SuppressWarnings("unchecked")
    @Override
    public void execute(BaseRedisAsyncCommands commands, T item, List> futures) {
        Map value = map.apply(item);
        if (value != null && !value.isEmpty()) {
            K key = key(item);
            futures.add(((RedisHashAsyncCommands) commands).hset(key, value));
        }
    }

}