Storing byte[ ] as a value with single key in redis using jedis

[Guna Sekar]

I am currently woking on an assignment where, I have to store an Java object in redis using Jedis. After searching in internet I found that, the only way to do it is, coverting the object into byte[ ]  and store. But with this option, the key also has to be array[ ]. I want the key to be a single value and the value is the byte[ ] 

[Юрий Соколов]

What prevents you from encoding key as byte[] ? Use any encoding you like: json, message_pack, protobuf.

ср, 4 июл. 2018 г., 11:32 Guna Sekar <dg.gun...@gmail.com>:

I am currently woking on an assignment where, I have to store an Java object in redis using Jedis. After searching in internet I found that, the only way to do it is, coverting the object into byte[ ]  and store. But with this option, the key also has to be array[ ]. I want the key to be a single value and the value is the byte[ ] 

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[Guna Sekar]

I want the key to be the plain string

[Gunasekar]

I have a situation where, the key is sql query and result has to be the sql.ResultSet(java object). Since we can't store an object directly in redis using jedis, I have converted the ResultSet into the byte[ ]. But I want the key to be the same sql query, which is a string.

On Wednesday, July 4, 2018 at 2:44:03 PM UTC+5:30, Guna Sekar wrote:

I want the key to be the plain string

On Wed, Jul 4, 2018 at 2:12 PM Юрий Соколов <funny....@gmail.com> wrote:

What prevents you from encoding key as byte[] ? Use any encoding you like: json, message_pack, protobuf.

ср, 4 июл. 2018 г., 11:32 Guna Sekar <dg.gun...@gmail.com>:

I am currently woking on an assignment where, I have to store an Java object in redis using Jedis. After searching in internet I found that, the only way to do it is, coverting the object into byte[ ]  and store. But with this option, the key also has to be array[ ]. I want the key to be a single value and the value is the byte[ ] 

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[Юрий Соколов]

Still could not understand, what is your problem :-(
What prevents you from using "same sql query, which is a string" as a key?
Aside from having large string key is not good for performance of redis, I don't see reason why you can't do it.

ср, 4 июл. 2018 г. в 12:27, Gunasekar <dg.gun...@gmail.com>:

I have a situation where, the key is sql query and result has to be the sql.ResultSet(java object). Since we can't store an object directly in redis using jedis, I have converted the ResultSet into the byte[ ]. But I want the key to be the same sql query, which is a string.

On Wednesday, July 4, 2018 at 2:44:03 PM UTC+5:30, Guna Sekar wrote:

I want the key to be the plain string

On Wed, Jul 4, 2018 at 2:12 PM Юрий Соколов <funny....@gmail.com> wrote:

What prevents you from encoding key as byte[] ? Use any encoding you like: json, message_pack, protobuf.

ср, 4 июл. 2018 г., 11:32 Guna Sekar <dg.gun...@gmail.com>:

I am currently woking on an assignment where, I have to store an Java object in redis using Jedis. After searching in internet I found that, the only way to do it is, coverting the object into byte[ ]  and store. But with this option, the key also has to be array[ ]. I want the key to be a single value and the value is the byte[ ] 

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[Юрий Соколов]

Ahh, I see, it is my fault: I don't know really jedis, and looks like it has interface either `set(string, string)` or `set(byte[], byte[])`....
Well, why calling `sql.getBytes()` bothers you?

ср, 4 июл. 2018 г. в 13:18, Юрий Соколов <funny....@gmail.com>:

[Guna Sekar]

Jedis is just a component to connect redis from java. The api call is set(byte[ ], byte[ ] ). But I want something like this set(string, byte[ ] )

By the way thanks for your time Yuri Sokolov.. I have to google it to find out your name

[Tuan Anh Tran]

In that case, I think you have to check jedis documentation instead.

On Wed, Jul 4, 2018 at 5:27 PM, Guna Sekar <dg.gun...@gmail.com> wrote:

Jedis is just a component to connect redis from java. The api call is set(byte[ ], byte[ ] ). But I want something like this set(string, byte[ ] )

By the way thanks for your time Yuri Sokolov.. I have to google it to find out your name

On Wed, Jul 4, 2018 at 3:53 PM Юрий Соколов <funny....@gmail.com> wrote:

Ahh, I see, it is my fault: I don't know really jedis, and looks like it has interface either `set(string, string)` or `set(byte[], byte[])`....
Well, why calling `sql.getBytes()` bothers you?

ср, 4 июл. 2018 г. в 13:18, Юрий Соколов <funny....@gmail.com>:

Still could not understand, what is your problem :-(
What prevents you from using "same sql query, which is a string" as a key?
Aside from having large string key is not good for performance of redis, I don't see reason why you can't do it.

ср, 4 июл. 2018 г. в 12:27, Gunasekar <dg.gun...@gmail.com>:

I have a situation where, the key is sql query and result has to be the sql.ResultSet(java object). Since we can't store an object directly in redis using jedis, I have converted the ResultSet into the byte[ ]. But I want the key to be the same sql query, which is a string.

On Wednesday, July 4, 2018 at 2:44:03 PM UTC+5:30, Guna Sekar wrote:

I want the key to be the plain string

On Wed, Jul 4, 2018 at 2:12 PM Юрий Соколов <funny....@gmail.com> wrote:

What prevents you from encoding key as byte[] ? Use any encoding you like: json, message_pack, protobuf.

ср, 4 июл. 2018 г., 11:32 Guna Sekar <dg.gun...@gmail.com>:

I am currently woking on an assignment where, I have to store an Java object in redis using Jedis. After searching in internet I found that, the only way to do it is, coverting the object into byte[ ]  and store. But with this option, the key also has to be array[ ]. I want the key to be a single value and the value is the byte[ ] 

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[Юрий Соколов]

https://stackoverflow.com/a/16747672/2173542

> set( byte[], byte[] ) is more efficient because, when you use String, they are converted in byte[] internally in Jedis before being encoded in the communication buffer.

So, either you will call `set(sqlString.getBytes(), value)`, or (if jedis had `set(string, byte[])`) jedis did it for you.
Currently jedis doesn't have `set(string, byte[])`, so why you don't want call `.getBytes()` by yourself?

ср, 4 июл. 2018 г. в 13:29, Guna Sekar <dg.gun...@gmail.com>:

[Guna Sekar]

so everytime to retrieve that i have convert the query into byte[] and do it