Memcached Get CAS Data

by Online Tutorials Library July 14, 2022

Memcached – Get CAS Data

Memcached gets command is used to get the value with CAS data. It is an alternative get command which is used for CAS data. This command returns a CAS identifier (a unique 64bit number) with the item. If the key does not exist in Memcached, it returns nothing.

Syntax

Here,

key: It is the key data stored and retrieved from Memcached.

Example in Ubuntu

Let’s see an example for “gets” command. Here we will use ‘city‘ as the key and store ‘bangalore’ in it with the expiration of time 900 seconds.

  set city 0 900 9  bangalore  STORED  gets city  VALUE city 0 9 1  bangalore  END  

Example in Windows

Let’s see an example for “gets” command. Here we will use ‘city‘ as the key and store ‘bangalore’ in it with the expiration of time 900 seconds.

  set city 0 900 9  bangalore  STORED  gets city  VALUE city 0 9 1  bangalore  END  

Memcached Server

Memcached Client

CAS using Java Application

Consider that Memcached server is running on host 127.0.0.1and port 11211. Here, we will use gets() method to get CAS data from a Memcached server.

Example

  import net.spy.memcached.MemcachedClient;  public class MemcachedJava {     public static void main(String[] args) {                // Connecting to Memcached server on localhost        MemcachedClient mcc = new MemcachedClient(new        InetSocketAddress(“127.0.0.1”, 11211));        System.out.println(“Connection to server sucessfully”);        System.out.println(“set status:”+mcc.set(“city”, 900, “bangalore”).done);                // Get value from cache        System.out.println(“Get from Cache:”+mcc.gets(“city”));     }  }  

Output:

Connection to server successfully  set status: true  Get from Cache:{CasValue 2/bangalore}

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