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11.6.14. Hot Rod ReplaceIfUnmodified Operation
The
ReplaceIfUnmodified operation request format includes the following:
| Field | Data Type | Details |
|---|---|---|
| Header | - | - |
| Key Length | vInt | Contains the length of the key. |
| Key | Byte array | Contains the key value. |
| Lifespan | vInt | Contains the number of seconds before the entry expires. If the number of seconds exceeds thirty days, the value is treated as UNIX time (i.e. the number of seconds since the date 1/1/1970) as the entry lifespan. When set to the value 0, the entry will never expire. |
| Max Idle | vInt | Contains the number of seconds an entry is allowed to remain idle before it is evicted from the cache. If this entry is set to 0, the entry is allowed to remain idle indefinitely without being evicted due to the max idle value. |
| Entry Version | 8 bytes | Uses the value returned by the GetWithVersion operation. |
| Value Length | vInt | Contains the length of the value. |
| Value | Byte array | Contains the requested value. |
The following are the value response values returned from this operation:
| Response Status | Details |
|---|---|
| 0x00 | Returned status if the entry was replaced or removed. |
| 0x01 | Returns status if the entry replace or remove was unsuccessful because the key was modified. |
| 0x02 | Returns status if the key does not exist. |
An empty response is the default response for this operation. However, if
ForceReturnPreviousValue is passed, the previous value and key are returned. If the previous key and value do not exist, the value length would contain the value 0.
