Java 快速序列化庫,FST 2.09 發布

jopen 10年前發布 | 8K 次閱讀 FST

FST 2.09 發布,該版本修復了自定義序列化器無法工作的問題,詳情請看 Issue 34

下載地址:fst-2.09.zip

FST fast-serialization 是重新實現的 Java 快速對象序列化的開發包。專注于速度,大小,兼容性。序列化速度更快(2-10倍)、體積更小,而且兼容 JDK 原生的序列化。要求 JDK 1.7 支持。使用該庫替換原來的基本不需要修改代碼。

特性:

  • Faster serialization and smaller object size.
  • drop-in replacement. Does not require special getters/setters/Constructors/Interfaces to serialize a class. Extends Outputstream, implements ObjectInput/ObjectOutput. Few code changes required.
  • Full support of JDK-serialization features such as Externalizable writeObject/readObject/readReplace/validation/putField/getField, hooks etc.. If an object is serializable with JDK, it should be serializable with FST without any further work.
  • preserves links inside the serialized object graph same as JDK default serialization
  • custom optimization using annotations, custom serializers
  • conditional decoding (skip decoding parts of an object/stream in case)

支持 java 1.7+

  • Fast serialization should be adaptable to 1.6 (no use of 1.7 features). A build is here
  • FST-structs does require 1.7 API

示例:

// ! reuse this Object, it caches metadata. Performance degrades massively
// if you create a new Configuration Object with each serialization !
static FSTConfiguration conf = FSTConfiguration.createDefaultConfiguration();
...
public MyClass myreadMethod(InputStream stream) throws IOException, ClassNotFoundException
{
    FSTObjectInput in = conf.getObjectInput(stream);
    MyClass result = in.readObject(MyClass.class);
    // DON'T: in.close(); here prevents reuse and will result in an exception      
    stream.close();
    return result;
}

public void mywriteMethod( OutputStream stream, MyClass toWrite ) throws IOException 
{
    FSTObjectOutput out = conf.getObjectOutput(stream);
    out.writeObject( toWrite, MyClass.class );
    // DON'T out.close() when using factory method;
    out.flush();
    stream.close();
}

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