11.6.5. Hot Rod ContainsKey Operation

A Hot Rod ContainsKey operation uses the following request format:

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Table 11.13. ContainsKey Operation Request Format
Field	Data Type	Details
Header	-	-
Key Length	vInt	Contains the length of the key. The `vInt` data type is used because of its size (up to `5` bytes), which is larger than the size of `Integer.MAX_VALUE`. However, Java disallows single array sizes to exceed the size of `Integer.MAX_VALUE`. As a result, this `vInt` is also limited to the maximum size of `Integer.MAX_VALUE`.
Key	Byte array	Contains a key, the corresponding value of which is requested.

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

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Table 11.14. ContainsKey Operation Response Format
Response Status	Details
0x00	Successful operation.
0x02	The key does not exist.

The response for this operation is empty.