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Chapter 2. Compiling Protobuf Schema
Data Grid uses the ProtoStream API to store data as Protobuf-encoded entries.
Protobuf is a language-neutral format that allows clients to create and retrieve entries in remote caches using both Hot Rod and REST endpoints.
2.1. Compiling Protobuf schema on Red Hat Enterprise Linux (RHEL) Copiar enlaceEnlace copiado en el portapapeles!
Compile Protobuf schema, .proto files, into C++ header and source files to describe your data to Data Grid.
Prerequisites
Install the Protobuf library and
protobuf-develpackage.yum install protobuf yum install protobuf-devel
# yum install protobuf # yum install protobuf-develCopy to Clipboard Copied! Toggle word wrap Toggle overflow
Procedure
Set the
LD_LIBRARY_PATHenvironment variable, if it is not already set.export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/lib64
# export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/lib64Copy to Clipboard Copied! Toggle word wrap Toggle overflow Compile Protobuf schema for the Hot Rod C++ client as required.
/bin/protoc --cpp_out dllexport_decl=HR_PROTO_EXPORT:/path/to/output/ $FILE
# /bin/protoc --cpp_out dllexport_decl=HR_PROTO_EXPORT:/path/to/output/ $FILECopy to Clipboard Copied! Toggle word wrap Toggle overflow HR_PROTO_EXPORTis a macro that the Hot Rod C++ client expands when it compiles the Protobuf schema.- Register your Protobuf schema with Data Grid if you plan to use queries.