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basic-serialization.md

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Basic Serialization
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basic_serialization
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

This page covers basic serialization patterns and Fory instance creation.

Creating Fory Instances

Single-Thread Fory

For single-threaded applications:

Fory fory = Fory.builder()
  .withLanguage(Language.JAVA)
  // enable reference tracking for shared/circular reference.
  // Disable it will have better performance if no duplicate reference.
  .withRefTracking(false)
  .withCompatibleMode(CompatibleMode.SCHEMA_CONSISTENT)
  // enable type forward/backward compatibility
  // disable it for small size and better performance.
  // .withCompatibleMode(CompatibleMode.COMPATIBLE)
  // enable async multi-threaded compilation.
  .withAsyncCompilation(true)
  .build();
byte[] bytes = fory.serialize(object);
System.out.println(fory.deserialize(bytes));

Thread-Safe Fory

For multi-threaded applications:

ThreadSafeFory fory = Fory.builder()
  .withLanguage(Language.JAVA)
  // enable reference tracking for shared/circular reference.
  // Disable it will have better performance if no duplicate reference.
  .withRefTracking(false)
  // compress int for smaller size
  // .withIntCompressed(true)
  // compress long for smaller size
  // .withLongCompressed(true)
  .withCompatibleMode(CompatibleMode.SCHEMA_CONSISTENT)
  // enable type forward/backward compatibility
  // disable it for small size and better performance.
  // .withCompatibleMode(CompatibleMode.COMPATIBLE)
  // enable async multi-threaded compilation.
  .withAsyncCompilation(true)
  .buildThreadSafeFory();
byte[] bytes = fory.serialize(object);
System.out.println(fory.deserialize(bytes));

Object Deep Copy

Fory provides efficient deep copy functionality:

With Reference Tracking

Fory fory = Fory.builder().withRefCopy(true).build();
SomeClass a = xxx;
SomeClass copied = fory.copy(a);

Without Reference Tracking (Better Performance)

When disabled, deep copy will ignore circular and shared references. Same reference of an object graph will be copied into different objects in one Fory#copy:

Fory fory = Fory.builder().withRefCopy(false).build();
SomeClass a = xxx;
SomeClass copied = fory.copy(a);

Serialization APIs

Basic Serialize/Deserialize

// Serialize object to byte array
byte[] bytes = fory.serialize(object);

// Deserialize byte array to object
Object obj = fory.deserialize(bytes);

Serialize/Deserialize with Type

// Serialize object
byte[] bytes = fory.serialize(object);

// Deserialize with expected type
MyClass obj = fory.deserialize(bytes, MyClass.class);

Best Practices

  1. Reuse Fory instances: Creating Fory is expensive, always reuse instances
  2. Use appropriate thread safety: Choose between single-thread and thread-safe based on your needs
  3. Register classes: Register frequently used classes for better performance
  4. Configure reference tracking: Disable if you don't have circular/shared references

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