Red Hat Summit Red Hat SummitSupportConsoleDéveloppeursCommencer un essaiContact

Ce contenu n'est pas disponible dans la langue sélectionnée.

11.6.7. Hot Rod GetWithMetadata Operation

A Hot Rod GetWithMetadata operation uses the following request format:
Expand
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:
Expand
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.
Report a bug
Retour au début
Red Hat logoGithubredditYoutubeTwitter

Apprendre

Essayez, achetez et vendez

Communautés

À propos de la documentation Red Hat

Nous aidons les utilisateurs de Red Hat à innover et à atteindre leurs objectifs grâce à nos produits et services avec un contenu auquel ils peuvent faire confiance. Découvrez nos récentes mises à jour.

Rendre l’open source plus inclusif

Red Hat s'engage à remplacer le langage problématique dans notre code, notre documentation et nos propriétés Web. Pour plus de détails, consultez le Blog Red Hat.

À propos de Red Hat

Nous proposons des solutions renforcées qui facilitent le travail des entreprises sur plusieurs plates-formes et environnements, du centre de données central à la périphérie du réseau.

Theme

© 2026 Red Hat