Flatbuffers Java API framework introduction and basic concept

Flatbuffers is an efficient, cross -platform serialization library for transmission and storage data between different applications.It is developed by Google to solve the performance problems in the process of traditionally serialization and deepening.This article will introduce the Java API framework of Flatbuffers and explain some basic concepts. ## What is Flatbuffers? Flatbuffers is a popular format for serialized and deicalized data.Unlike other serialization libraries, the design goal of Flatbuffers is to maximize performance and memory efficiency.It achieves extremely high performance by storing data in a plane and compact binary buffer, and the need to omit the needs of data to copy or decodes data. One of the main advantages of Flatbuffers is that it can directly access any part of the data without analyzing the entire data structure.This makes it very suitable for use in an environment with limited memory or network bandwidth.In addition, Flatbuffers also has the advantages of low latency, making it an ideal choice for real -time applications (such as games). The characteristics of ## Flatbuffers The following are some of the main features of Flatbuffers: 1. ** High -performance **: The design goal of Flatbuffers is to minimize performance loss during serialization and desertileization.Compared with other serialization libraries, it has faster serialization and desertification speed, and lower memory overhead. 2. ** Cross -platform **: Flatbuffers supports a variety of programming languages, including Java, C ++, C#, Python, etc., so that applications on different platforms can easily exchange data. 3. ** scalability **: The data structure of Flatbuffers can be easily expanded and modified without upgrading or conversion of storage data.This makes it very suitable for long -term maintenance and evolution projects. 4. ** Type Security **: Flatbuffers uses static types to define the data structure, which means that the compiler can check the type error and capture errors during compilation, instead of errors during runtime. ## Flatbuffers Java API framework Flatbuffers provides a API framework for Java, allowing developers to use Flatbuffers for serialization and derivativeization in Java applications.Below is a simple example, showing how to use Flatbuffers Java API to create and access a simple data structure: import com.google.flatbuffers.FlatBufferBuilder; import mygame.Sample; public class Main { public static void main(String[] args) { // Create Flatbufferbuilder FlatBufferBuilder builder = new FlatBufferBuilder(); // Create a sample object int nameOffset = builder.createString("John Doe"); int sampleOffset = Sample.createSample(builder, nameOffset); // Complete the construction operation builder.finish(sampleOffset); // Get the Flatbuffer data buffer byte[] buffer = builder.sizedByteArray(); // Revitalize data Sample sample = Sample.getRootAsSample(ByteBuffer.wrap(buffer)); // Visit data String name = sample.name(); System.out.println("Name: " + name); } } In this example, we first created a Flatbufferbuilder object to build Flatbuffer data.We created a sample object and used the name as a parameter.We then call the builder.finish () method to complete the construction operation and obtain the generated Flatbuffer data buffer.Finally, we use the Sample.getrootassample () method to sequence the buffer back to the Sample object and access the data by calling the Sample.Name () method. This is just the basic usage example of Flatbuffers Java API. You can further learn and practice as needed. ## in conclusion Flatbuffers is a high -performance, cross -platform serialization library, with many advantages and suitable for various applications.By using the Java API framework, developers can easily use Flatbuffers for serialization and derivativeization in Java applications.Whether it is building real -time applications or processing large -scale data, Flatbuffers is a powerful tool.I hope this article can help you understand the basic concepts and usage methods of Flatbuffers.