Skip to content

DOC-5376 DOC-5375 temp Lettuce reactive hash and set examples #2074

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Sep 3, 2025
Merged

DOC-5376 DOC-5375 temp Lettuce reactive hash and set examples #2074

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
161 changes: 161 additions & 0 deletions local_examples/tmp/lettuce-reactive/HashExample.java
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,161 @@
// EXAMPLE: hash_tutorial
package io.redis.examples.reactive;

import io.lettuce.core.*;
import io.lettuce.core.api.reactive.RedisReactiveCommands;
import io.lettuce.core.api.StatefulRedisConnection;
// REMOVE_START
import org.junit.jupiter.api.Test;
import static org.assertj.core.api.Assertions.assertThat;
// REMOVE_END

import reactor.core.publisher.Mono;

import java.util.*;

public class HashExample {

// REMOVE_START
@Test
// REMOVE_END
public void run() {
RedisClient redisClient = RedisClient.create("redis://localhost:6379");

try (StatefulRedisConnection<String, String> connection = redisClient.connect()) {
RedisReactiveCommands<String, String> reactiveCommands = connection.reactive();
// REMOVE_START
// Clean up any existing data
Mono<Void> cleanup = reactiveCommands.del("bike:1", "bike:1:stats").then();
cleanup.block();
// REMOVE_END

// STEP_START set_get_all
Map<String, String> bike1 = new HashMap<>();
bike1.put("model", "Deimos");
bike1.put("brand", "Ergonom");
bike1.put("type", "Enduro bikes");
bike1.put("price", "4972");

Mono<Long> setGetAll = reactiveCommands.hset("bike:1", bike1).doOnNext(result -> {
System.out.println(result); // >>> 4
// REMOVE_START
assertThat(result).isEqualTo(4L);
// REMOVE_END
});

setGetAll.block();

Mono<String> getModel = reactiveCommands.hget("bike:1", "model").doOnNext(result -> {
System.out.println(result); // >>> Deimos
// REMOVE_START
assertThat(result).isEqualTo("Deimos");
// REMOVE_END
});

Mono<String> getPrice = reactiveCommands.hget("bike:1", "price").doOnNext(result -> {
System.out.println(result); // >>> 4972
// REMOVE_START
assertThat(result).isEqualTo("4972");
// REMOVE_END
});

Mono<List<KeyValue<String, String>>> getAll = reactiveCommands.hgetall("bike:1").collectList().doOnNext(result -> {
System.out.println(result);
// >>> [KeyValue[type, Enduro bikes], KeyValue[brand, Ergonom],
// KeyValue[price, 4972], KeyValue[model, Deimos]]
// REMOVE_START
List<KeyValue<String, String>> expected = new ArrayList<>(
Arrays.asList(KeyValue.just("price", "4972"), KeyValue.just("model", "Deimos"),
KeyValue.just("type", "Enduro bikes"), KeyValue.just("brand", "Ergonom")));
assertThat(result).isEqualTo(expected);
// REMOVE_END
});
// STEP_END

// STEP_START hmget
Mono<List<KeyValue<String, String>>> hmGet = reactiveCommands.hmget("bike:1", "model", "price").collectList()
.doOnNext(result -> {
System.out.println(result);
// >>> [KeyValue[model, Deimos], KeyValue[price, 4972]]
// REMOVE_START
List<KeyValue<String, String>> expected = new ArrayList<>(
Arrays.asList(KeyValue.just("model", "Deimos"), KeyValue.just("price", "4972")));
assertThat(result).isEqualTo(expected);
// REMOVE_END
});
// STEP_END

Mono.when(getModel, getPrice, getAll, hmGet).block();

// STEP_START hincrby
Mono<Void> hIncrBy = reactiveCommands.hincrby("bike:1", "price", 100).doOnNext(result -> {
System.out.println(result); // >>> 5072
// REMOVE_START
assertThat(result).isEqualTo(5072L);
// REMOVE_END
}).flatMap(v -> reactiveCommands.hincrby("bike:1", "price", -100)).doOnNext(result -> {
System.out.println(result); // >>> 4972
// REMOVE_START
assertThat(result).isEqualTo(4972L);
// REMOVE_END
}).then();
// STEP_END
hIncrBy.block();

// STEP_START incrby_get_mget
Mono<Void> incrByGetMget = reactiveCommands.hincrby("bike:1:stats", "rides", 1).doOnNext(result -> {
System.out.println(result); // >>> 1
// REMOVE_START
assertThat(result).isEqualTo(1L);
// REMOVE_END
}).flatMap(v -> reactiveCommands.hincrby("bike:1:stats", "rides", 1)).doOnNext(result -> {
System.out.println(result); // >>> 2
// REMOVE_START
assertThat(result).isEqualTo(2L);
// REMOVE_END
}).flatMap(v -> reactiveCommands.hincrby("bike:1:stats", "rides", 1)).doOnNext(result -> {
System.out.println(result); // >>> 3
// REMOVE_START
assertThat(result).isEqualTo(3L);
// REMOVE_END
}).flatMap(v -> reactiveCommands.hincrby("bike:1:stats", "crashes", 1)).doOnNext(result -> {
System.out.println(result); // >>> 1
// REMOVE_START
assertThat(result).isEqualTo(1L);
// REMOVE_END
}).flatMap(v -> reactiveCommands.hincrby("bike:1:stats", "owners", 1)).doOnNext(result -> {
System.out.println(result); // >>> 1
// REMOVE_START
assertThat(result).isEqualTo(1L);
// REMOVE_END
}).then();

incrByGetMget.block();

Mono<String> getRides = reactiveCommands.hget("bike:1:stats", "rides").doOnNext(result -> {
System.out.println(result); // >>> 3
// REMOVE_START
assertThat(result).isEqualTo("3");
// REMOVE_END
});

Mono<List<KeyValue<String, String>>> getCrashesOwners = reactiveCommands.hmget("bike:1:stats", "crashes", "owners")
.collectList().doOnNext(result -> {
System.out.println(result);
// >>> [KeyValue[crashes, 1], KeyValue[owners, 1]]
// REMOVE_START
List<KeyValue<String, String>> expected = new ArrayList<>(
Arrays.asList(KeyValue.just("crashes", "1"), KeyValue.just("owners", "1")));

assertThat(result).isEqualTo(expected);
// REMOVE_END
});
// STEP_END

Mono.when(getRides, getCrashesOwners).block();
} finally {
redisClient.shutdown();
}
}

}
230 changes: 230 additions & 0 deletions local_examples/tmp/lettuce-reactive/SetExample.java
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,230 @@
// EXAMPLE: sets_tutorial
package io.redis.examples.reactive;

import io.lettuce.core.*;
import io.lettuce.core.api.reactive.RedisReactiveCommands;
import io.lettuce.core.api.StatefulRedisConnection;
// REMOVE_START
import org.junit.jupiter.api.Test;
import static org.assertj.core.api.Assertions.assertThat;
// REMOVE_END

import reactor.core.publisher.Mono;

import java.util.*;

public class SetExample {

// REMOVE_START
@Test
// REMOVE_END
public void run() {
RedisClient redisClient = RedisClient.create("redis://localhost:6379");

try (StatefulRedisConnection<String, String> connection = redisClient.connect()) {
RedisReactiveCommands<String, String> reactiveCommands = connection.reactive();
// REMOVE_START
// Clean up any existing data
Mono<Void> cleanup = reactiveCommands.del("bikes:racing:france", "bikes:racing:usa", "bikes:racing:italy").then();
cleanup.block();
// REMOVE_END

// STEP_START sadd
Mono<Void> sAdd = reactiveCommands.sadd("bikes:racing:france", "bike:1").doOnNext(result -> {
System.out.println(result); // >>> 1
// REMOVE_START
assertThat(result).isEqualTo(1L);
// REMOVE_END
}).flatMap(v -> reactiveCommands.sadd("bikes:racing:france", "bike:1")).doOnNext(result -> {
System.out.println(result); // >>> 0
// REMOVE_START
assertThat(result).isEqualTo(0L);
// REMOVE_END
}).flatMap(v -> reactiveCommands.sadd("bikes:racing:france", "bike:2", "bike:3")).doOnNext(result -> {
System.out.println(result); // >>> 2
// REMOVE_START
assertThat(result).isEqualTo(2L);
// REMOVE_END
}).flatMap(v -> reactiveCommands.sadd("bikes:racing:usa", "bike:1", "bike:4")).doOnNext(result -> {
System.out.println(result); // >>> 2
// REMOVE_START
assertThat(result).isEqualTo(2L);
// REMOVE_END
}).then();
// STEP_END
sAdd.block();

// STEP_START sismember
Mono<Boolean> sIsMember1 = reactiveCommands.sismember("bikes:racing:usa", "bike:1").doOnNext(result -> {
System.out.println(result); // >>> true
// REMOVE_START
assertThat(result).isTrue();
// REMOVE_END
});

Mono<Boolean> sIsMember2 = reactiveCommands.sismember("bikes:racing:usa", "bike:2").doOnNext(result -> {
System.out.println(result); // >>> false
// REMOVE_START
assertThat(result).isFalse();
// REMOVE_END
});
// STEP_END

// STEP_START sinter
Mono<List<String>> sInter = reactiveCommands.sinter("bikes:racing:france", "bikes:racing:usa").collectList()
.doOnNext(result -> {
System.out.println(result); // >>> [bike:1]
// REMOVE_START
assertThat(result).containsExactly("bike:1");
// REMOVE_END
});
// STEP_END

// STEP_START scard
Mono<Long> sCard = reactiveCommands.scard("bikes:racing:france").doOnNext(result -> {
System.out.println(result); // >>> 3
// REMOVE_START
assertThat(result).isEqualTo(3L);
// REMOVE_END
});
// STEP_END

Mono.when(sIsMember1, sIsMember2, sInter, sCard).block();

// STEP_START sadd_smembers
Mono<Void> sAddSMembers = reactiveCommands.sadd("bikes:racing:france", "bike:1", "bike:2", "bike:3")
.doOnNext(result -> {
System.out.println(result); // >>> 3
// REMOVE_START
assertThat(result).isEqualTo(0L);
// REMOVE_END
}).flatMap(v -> reactiveCommands.smembers("bikes:racing:france").collectList()).doOnNext(result -> {
System.out.println(result); // >>> [bike:1, bike:2, bike:3]
// REMOVE_START
assertThat(result).containsExactlyInAnyOrder("bike:1", "bike:2", "bike:3");
// REMOVE_END
}).then();
// STEP_END
sAddSMembers.block();

// STEP_START smismember
Mono<Boolean> sIsMember3 = reactiveCommands.sismember("bikes:racing:france", "bike:1").doOnNext(result -> {
System.out.println(result); // >>> true
// REMOVE_START
assertThat(result).isTrue();
// REMOVE_END
});

Mono<List<Boolean>> sMIsMember = reactiveCommands.smismember("bikes:racing:france", "bike:2", "bike:3", "bike:4")
.collectList().doOnNext(result -> {
System.out.println(result); // >>> [true, true, false]
// REMOVE_START
assertThat(result).containsExactly(true, true, false);
// REMOVE_END
});
// STEP_END

// STEP_START sdiff
Mono<List<String>> sDiff = reactiveCommands.sdiff("bikes:racing:france", "bikes:racing:usa").collectList()
.doOnNext(result -> {
System.out.println(result); // >>> [bike:2, bike:3]
// REMOVE_START
assertThat(result).containsExactlyInAnyOrder("bike:2", "bike:3");
// REMOVE_END
});
// STEP_END

Mono.when(sIsMember3, sMIsMember, sDiff).block();

// STEP_START multisets
Mono<Void> add3sets = reactiveCommands.sadd("bikes:racing:france", "bike:1", "bike:2", "bike:3")
.doOnNext(result -> {
System.out.println(result); // >>> 0
// REMOVE_START
assertThat(result).isEqualTo(0L);
// REMOVE_END
}).flatMap(v -> reactiveCommands.sadd("bikes:racing:usa", "bike:1", "bike:4")).doOnNext(result -> {
System.out.println(result); // >>> 0
// REMOVE_START
assertThat(result).isEqualTo(0L);
// REMOVE_END
}).flatMap(v -> reactiveCommands.sadd("bikes:racing:italy", "bike:1", "bike:2", "bike:3", "bike:4"))
.doOnNext(result -> {
System.out.println(result); // >>> 4,
// REMOVE_START
assertThat(result).isEqualTo(4L);
// REMOVE_END
}).then();
add3sets.block();

Mono<List<String>> multisets1 = reactiveCommands
.sinter("bikes:racing:france", "bikes:racing:usa", "bikes:racing:italy").collectList().doOnNext(result -> {
System.out.println(result); // >>> [bike:1]
// REMOVE_START
assertThat(result).containsExactly("bike:1");
// REMOVE_END
});

Mono<List<String>> multisets2 = reactiveCommands
.sunion("bikes:racing:france", "bikes:racing:usa", "bikes:racing:italy").collectList().doOnNext(result -> {
System.out.println(result); // >>> [bike:1, bike:2, bike:3, bike:4]
// REMOVE_START
assertThat(result).containsExactlyInAnyOrder("bike:1", "bike:2", "bike:3", "bike:4");
// REMOVE_END
});

Mono<List<String>> multisets3 = reactiveCommands
.sdiff("bikes:racing:france", "bikes:racing:usa", "bikes:racing:italy").collectList().doOnNext(result -> {
System.out.println(result); // >>> []
// REMOVE_START
assertThat(result).isEmpty();
// REMOVE_END
});

Mono<List<String>> multisets4 = reactiveCommands.sdiff("bikes:racing:usa", "bikes:racing:france").collectList()
.doOnNext(result -> {
System.out.println(result); // >>> [bike:4]
// REMOVE_START
assertThat(result).containsExactly("bike:4");
// REMOVE_END
});

Mono<List<String>> multisets5 = reactiveCommands.sdiff("bikes:racing:france", "bikes:racing:usa").collectList()
.doOnNext(result -> {
System.out.println(result); // >>> [bike:2, bike:3]
// REMOVE_START
assertThat(result).containsExactlyInAnyOrder("bike:2", "bike:3");
// REMOVE_END
});
// STEP_END

Mono.when(multisets1, multisets2, multisets3, multisets4, multisets5).block();

// STEP_START srem
Mono<Void> sRem = reactiveCommands.sadd("bikes:racing:france", "bike:1", "bike:2", "bike:3", "bike:4", "bike:5")
.doOnNext(result -> {
System.out.println(result); // >>> 2
// REMOVE_START
assertThat(result).isEqualTo(2L);
// REMOVE_END
}).flatMap(v -> reactiveCommands.srem("bikes:racing:france", "bike:1")).doOnNext(result -> {
System.out.println(result); // >>> 1
// REMOVE_START
assertThat(result).isEqualTo(1L);
// REMOVE_END
}).flatMap(v -> reactiveCommands.spop("bikes:racing:france")).doOnNext(result -> {
System.out.println(result); // >>> bike:3 (for example)
}).flatMap(v -> reactiveCommands.smembers("bikes:racing:france").collectList()).doOnNext(result -> {
System.out.println(result); // >>> [bike:2, bike:4, bike:5] (for example)
}).flatMap(v -> reactiveCommands.srandmember("bikes:racing:france")).doOnNext(result -> {
System.out.println(result); // >>> bike:4 (for example)
}).then();
// STEP_END

sRem.block();
} finally {
redisClient.shutdown();
}
}

}