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11.6.7. Hot Rod GetWithMetadata Operation

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11.6.7. Hot Rod GetWithMetadata Operation

A Hot Rod GetWithMetadata operation uses the following request format:

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Table 11.18. GetWithMetadata Operation Request Format
Field	Data Type	Details
Header	variable	Request header.
Key Length	vInt	Length of key. Note that the size of a vInt can be up to five bytes, which theoretically can produce bigger numbers than `Integer.MAX_VALUE`. However, Java cannot create a single array that is bigger than `Integer.MAX_VALUE`, hence the protocol limits vInt array lengths to `Integer.MAX_VALUE`.
Key	byte array	Byte array containing the key whose value is being requested.

The response header for this operation contains one of the following response statuses:

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Table 11.19. GetWithMetadata Operation Response Format
Field	Data Type	Details
Header	variable	Response header.
Response status	1 byte	`0x00` = success, if key retrieved. `0x02` = if key does not exist.
Flag	1 byte	A flag indicating whether the response contains expiration information. The value of the flag is obtained as a bitwise OR operation between `INFINITE_LIFESPAN (0x01)` and `INFINITE_MAXIDLE (0x02)`.
Created	Long	(optional) a Long representing the timestamp when the entry was created on the server. This value is returned only if the flag's `INFINITE_LIFESPAN` bit is not set.
Lifespan	vInt	(optional) a vInt representing the lifespan of the entry in seconds. This value is returned only if the flag's `INFINITE_LIFESPAN` bit is not set.
LastUsed	Long	(optional) a Long representing the timestamp when the entry was last accessed on the server. This value is returned only if the flag's `INFINITE_MAXIDLE` bit is not set.
MaxIdle	vInt	(optional) a vInt representing the maxIdle of the entry in seconds. This value is returned only if the flag's `INFINITE_MAXIDLE` bit is not set.
Entry Version	8 bytes	Unique value of an existing entry modification. The protocol does not mandate that entry_version values are sequential, however they need to be unique per update at the key level.
Value Length	vInt	If success, length of value.
Value	byte array	If success, the requested value.

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