[SOLVED] is there option provided by redis to do partial updates to cache objects

is there option provided by redis to do partial updates to cache objects

I am storing data in redis using JCA(java caching api) where key is String and value is Object which is JSON string. I have a requirement to perform partial update to cache value instead of retrieving cache value using key and then modify attribute and perform put operation with latest cache value

{
  "attribute1" : "value1",
   "attribute2 " : [
  {
   "attribute3" : "value3"
  }
]
}

Above is sample json format. As explained above is it possible to update value of attribute1 from value1 to value2 without geting cache value using key in redis

Solution

You can use a Lua script, so that using the CJSON Lua library you update the item. I have shared a similar example on How to nest a list into a structure in Redis to reduce top level?

Not familiar with JCA, so not sure if your client would make it simple to send an EVAL command.