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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:
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Table 11.1. Header Data Types
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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