B4J Code Snippet [web]Lettuce.io (working with Redis)

UPDATE: https://www.b4x.com/android/forum/threads/lettuce-v2-0.144169/

'Non-UI application (console / server application)
#Region Project Attributes
    #CommandLineArgs:
    #MergeLibraries: True
#End Region
#AdditionalJar: lettuce-core-6.1.8.RELEASE
#AdditionalJar: reactor-core-3.4.19
#AdditionalJar: reactive-streams-1.0.4
#AdditionalJar: netty-common-4.1.78.Final
#AdditionalJar: netty-buffer-4.1.78.Final
#AdditionalJar: netty-codec-4.1.78.Final
#AdditionalJar: netty-handler-4.1.78.Final
#AdditionalJar: netty-resolver-4.1.78.Final
#AdditionalJar: netty-transport-4.1.78.Final
#AdditionalJar: netty-transport-native-unix-common-4.1.78.Final

Sub Process_Globals
 
End Sub

Sub AppStart (Args() As String)
    Dim redis As Lettuce
    redis.Initialize
    redis.Path = "redis://localhost:6379/0"
    redis.WriteMap(CreateMap("key1": "Hello B4J", "key2": "12.5"))
End Sub

Sub Class_Globals
    Private jo As JavaObject
    Private URL As String
End Sub

Public Sub Initialize
    jo.initializeStatic("io.lettuce.core.RedisClient")
End Sub

Public Sub setPath (mURL As String)
    URL = mURL
End Sub

Public Sub WriteMap (Map As Map)
    Dim redisClient As JavaObject = jo.RunMethod("create", Array(URL))
    Dim connection As JavaObject = redisClient.RunMethod("connect", Null)
    For Each Key As String In Map.Keys
        Dim syncCommands As JavaObject = connection.RunMethod("sync", Null)
        syncCommands.RunMethod("set", Array(Key, Map.Get(Key)))
    Next
    connection.RunMethod("close", Null)
    redisClient.RunMethod("shutdown", Null)
End Sub

Additional Jars download links:

https://repo1.maven.org/maven2/io/lettuce/lettuce-core/6.1.8.RELEASE/lettuce-core-6.1.8.RELEASE.jar

https://repo1.maven.org/maven2/io/projectreactor/reactor-core/3.4.19/reactor-core-3.4.19.jar

https://repo1.maven.org/maven2/org/reactivestreams/reactive-streams/1.0.4/reactive-streams-1.0.4.jar

https://jar-download.com/artifacts/io.netty/netty-handler

 

[aeric]

Laragon 5.0.0 is bundled with Redis for Windows (version 3.2.100)

We can use Web Admin or Redis-CLI

 

[EnriqueGonzalez]

@aeric i believe that your B4x Career will advance if you start Learning JavaObject

dim clientST as javaobject
clientTS.initializeStatic("io.lettuce.core.RedisClient")

dim client as javaobject = clientST.runmethod("create",array("redis://localhost:6379/0"))
dim connection as javaobject = client.runmethod("connect",null)
dim syncCommands as javaobject = connection.runmethod("sync",null)
syncCommands.runmethod("set",array("key","hellob4j"))

        connection.close();
        connection.runmethod("close",null)
        client.runmethod("shutdown",null)

if you wrap each on its own sub you can create a b4j class and use it directly.
(i wrote it in the forum, check for errros)

 

[aeric]

@aeric i believe that your B4x Career will advance if you start Learning JavaObject

dim clientST as javaobject
clientTS.initializeStatic("io.lettuce.core.RedisClient")

dim client as javaobject = clientST.runmethod("create",array("redis://localhost:6379/0"))
dim connection as javaobject = client.runmethod("connect",null)
dim syncCommands as javaobject = connection.runmethod("sync",null)
syncCommands.runmethod("set",array("key","hellob4j"))

        connection.close();
        connection.runmethod("close",null)
        client.runmethod("shutdown",null)

if you wrap each on its own sub you can create a b4j class and use it directly.
(i wrote it in the forum, check for errros)

Thanks @EnriqueGonzalez , I will try to learn.

 

[aeric]

connection.close();

I suppose this line is not needed.

 

[EnriqueGonzalez]

I suppose this line is not needed.

jaja yeah sorry, writing code in the forum is numbing

 

[aeric]

jaja yeah sorry, writing code in the forum is numbing

You just write without B4J. This is great.

 

[aeric]

Hi @EnriqueGonzalez, allow me to update with your code on post #1.

 

[aeric]

Dim redisClient As JavaObject = jo.RunMethod("create", Array("redis://localhost:6379/0"))

In this case, redisClient is JavaObject. Should we use jo.RunMethodJO instead?
I see no difference in if I change.

 

[EnriqueGonzalez]

Dim redisClient As JavaObject = jo.RunMethod("create", Array("redis://localhost:6379/0"))

In this case, redisClient is JavaObject. Should we use jo.RunMethodJO instead?
I see no difference in if I change.

runMethodJo is only if you are going to concatenate methods, if not is not needed

 

[aeric]

if you wrap each on its own sub you can create a b4j class and use it directly.

I created a WriteMap method but I don't manage to create each on own sub as you said.

 

[Johan Hormaza]

https://download.jar-download.com/cache_jars/io.netty/netty-handler/4.1.78.Final/jar_files.zip

 

[aeric]

View attachment 135938

Here: https://jar-download.com/artifacts/io.netty/netty-handler

I think you can try the latest version too.

 

[Johan Hormaza]

Here: https://jar-download.com/artifacts/io.netty/netty-handler

I think you can try the latest version too.

Thank you, what would be the way to obtain the stored data or make the queries?

 

[aeric]

Thank you, what would be the way to obtain the stored data or make the queries?

Please check version 2.

[web]Lettuce v2.0

OLDER VERSiON: https://www.b4x.com/android/forum/threads/lettuce-io-working-with-redis.141509/ 'Non-UI application (console / server application) #Region Project Attributes #CommandLineArgs: #MergeLibraries: True #End Region #AdditionalJar: lettuce-core-6.1.8.RELEASE #AdditionalJar...

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