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6.2. Protobuf Encoding

The Infinispan Query DSL can be used remotely via the Hot Rod client. In order to do this, protocol buffers are used to adopt a common format for storing cache entries and marshalling them.

For more information, see https://developers.google.com/protocol-buffers/docs/overview

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6.2.1. Storing Protobuf Encoded Entities
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Protobuf requires data to be structured. This is achieved by declaring Protocol Buffer message types in .proto files

For example:

Example 6.1. .library.proto

package book_sample;  
message Book {      
      required string title = 1;
      required string description = 2;
      required int32 publicationYear = 3; // no native Date type available in Protobuf
      
      repeated Author authors = 4;
}
message Author {
    required string name = 1;
    required string surname = 2;
}

package book_sample;  
message Book {      
      required string title = 1;
      required string description = 2;
      required int32 publicationYear = 3; // no native Date type available in Protobuf
      
      repeated Author authors = 4;
}
message Author {
    required string name = 1;
    required string surname = 2;
}

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The provided example:

An entity named Book is placed in a package named book_sample.
```
package book_sample;  
message Book {
```
```
package book_sample;  
message Book {
```
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The entity declares several fields of primitive types and a repeatable field named authors.

 required string title = 1;
      required string description = 2;
      required int32 publicationYear = 3; // no native Date type available in Protobuf
      
      repeated Author authors = 4;
}

 required string title = 1;
      required string description = 2;
      required int32 publicationYear = 3; // no native Date type available in Protobuf
      
      repeated Author authors = 4;
}

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The Author message instances are embedded in the Book message instance.

message Author {
    required string name = 1;
    required string surname = 2;
}

message Author {
    required string name = 1;
    required string surname = 2;
}

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6.2. Protobuf Encoding

6.2.1. Storing Protobuf Encoded Entities
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6.2. Protobuf Encoding

6.2.1. Storing Protobuf Encoded Entitiesリンクのコピーリンクがクリップボードにコピーされました!

詳細情報

試用、購入および販売

コミュニティー

Red Hat ドキュメントについて

多様性を受け入れるオープンソースの強化

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Red Hat legal and privacy links

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6.2.1. Storing Protobuf Encoded Entities
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