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11.6. Hot Rod Headers
11.6.1. Hot Rod Header Data Types
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All keys and values used for Hot Rod in JBoss Data Grid are stored as byte arrays. Certain header values, such as those for REST and Memcached, are stored using the following data types instead:
| Data Type | Size | Details |
|---|---|---|
| vInt | Between 1-5 bytes. | Unsigned variable length integer values. |
| vLong | Between 1-9 bytes. | Unsigned variable length long values. |
| string | - | Strings are always represented using UTF-8 encoding. |
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