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class=breadcrumbs><li class=breadcrumbs__item><a aria-label="Home page" class=breadcrumbs__link href=/><svg viewBox="0 0 24 24" class=breadcrumbHomeIcon_YNFT><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill=currentColor /></svg></a><li class="breadcrumbs__item breadcrumbs__item--active"><span class=breadcrumbs__link>Introduction</span></ul></nav><span class="theme-doc-version-badge badge badge--secondary">Version: 0.17</span><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type=button class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Overview</h1></header><div class=themed-logo><img width=65% alt="Apache Fory logo" src=/img/fory-logo-dark.png class=themed-logo-dark /><img width=65% alt="Apache Fory logo" src=/img/fory-logo-light.png 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| <p><strong>Apache Fory™</strong> is a blazingly-fast multi-language serialization framework powered by <strong>JIT compilation</strong>, <strong>zero-copy</strong> techniques, and <strong>advanced code generation</strong>, achieving up to <strong>170x performance improvement</strong> while maintaining simplicity and ease of use.</p> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=quick-example>Quick Example<a href=#quick-example class=hash-link aria-label="Direct link to Quick Example" title="Direct link to Quick Example" translate=no></a></h2> |
| <p>Cross-language serialization — serialize in Rust, deserialize in Python:</p> |
| <p><strong>Rust</strong></p> |
| <div class="language-rust codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-rust codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token keyword" style=color:#00009f>use</span><span class="token plain"> </span><span class="token namespace" style=opacity:0.7>fory</span><span class="token namespace punctuation" style=opacity:0.7;color:#393A34>::</span><span class="token punctuation" style=color:#393A34>{</span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>,</span><span class="token plain"> </span><span class="token class-name">ForyObject</span><span class="token punctuation" style=color:#393A34>}</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain" style=display:inline-block></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token attribute attr-name" style=color:#00a4db>#[derive(ForyObject, Debug, PartialEq)]</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token keyword" style=color:#00009f>struct</span><span class="token plain"> </span><span class="token type-definition class-name">User</span><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>{</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> name</span><span class="token punctuation" style=color:#393A34>:</span><span class="token plain"> </span><span class="token class-name">String</span><span class="token punctuation" style=color:#393A34>,</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> age</span><span class="token punctuation" style=color:#393A34>:</span><span class="token plain"> </span><span class="token keyword" style=color:#00009f>i32</span><span class="token punctuation" style=color:#393A34>,</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token punctuation" style=color:#393A34>}</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain" style=display:inline-block></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token keyword" style=color:#00009f>fn</span><span class="token plain"> </span><span class="token function-definition function" style=color:#d73a49>main</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>{</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token keyword" style=color:#00009f>let</span><span class="token plain"> </span><span class="token keyword" style=color:#00009f>mut</span><span class="token plain"> fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">Fory</span><span class="token punctuation" style=color:#393A34>::</span><span class="token function" style=color:#d73a49>default</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>xlang</span><span class="token punctuation" style=color:#393A34>(</span><span class="token boolean" style=color:#36acaa>true</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>register</span><span class="token punctuation" style=color:#393A34>::</span><span class="token operator" style=color:#393A34><</span><span class="token class-name">User</span><span class="token operator" style=color:#393A34>></span><span class="token punctuation" style=color:#393A34>(</span><span class="token number" style=color:#36acaa>1</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain" style=display:inline-block></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token keyword" style=color:#00009f>let</span><span class="token plain"> user </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> </span><span class="token class-name">User</span><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>{</span><span class="token plain"> name</span><span class="token punctuation" style=color:#393A34>:</span><span class="token plain"> </span><span class="token string" style=color:#e3116c>"Alice"</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>to_string</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>,</span><span class="token plain"> age</span><span class="token punctuation" style=color:#393A34>:</span><span class="token plain"> </span><span class="token number" style=color:#36acaa>30</span><span class="token plain"> </span><span class="token punctuation" style=color:#393A34>}</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token keyword" style=color:#00009f>let</span><span class="token plain"> bytes </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>serialize</span><span class="token punctuation" style=color:#393A34>(</span><span class="token operator" style=color:#393A34>&</span><span class="token plain">user</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>unwrap</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token keyword" style=color:#00009f>let</span><span class="token plain"> decoded</span><span class="token punctuation" style=color:#393A34>:</span><span class="token plain"> </span><span class="token class-name">User</span><span class="token plain"> </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>deserialize</span><span class="token punctuation" style=color:#393A34>(</span><span class="token operator" style=color:#393A34>&</span><span class="token plain">bytes</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>.</span><span class="token function" style=color:#d73a49>unwrap</span><span class="token punctuation" style=color:#393A34>(</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> </span><span class="token macro property" style=color:#36acaa>println!</span><span class="token punctuation" style=color:#393A34>(</span><span class="token string" style=color:#e3116c>"{:?}"</span><span class="token punctuation" style=color:#393A34>,</span><span class="token plain"> decoded</span><span class="token punctuation" style=color:#393A34>)</span><span class="token punctuation" style=color:#393A34>;</span><span class="token plain"> </span><span class="token comment" style=color:#999988;font-style:italic>// User { name: "Alice", age: 30 }</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token punctuation" style=color:#393A34>}</span><br/></div></code></pre></div></div> |
| <p><strong>Python</strong></p> |
| <div class="language-python codeBlockContainer_Ckt0 theme-code-block" style=--prism-color:#393A34;--prism-background-color:#f6f8fa><div class=codeBlockContent_QJqH><pre tabindex=0 class="prism-code language-python codeBlock_bY9V thin-scrollbar" style=color:#393A34;background-color:#f6f8fa><code class=codeBlockLines_e6Vv><div class=token-line style=color:#393A34><span class="token keyword" style=color:#00009f>import</span><span class="token plain"> pyfory</span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token keyword" style=color:#00009f>from</span><span class="token plain"> dataclasses </span><span class="token keyword" style=color:#00009f>import</span><span class="token plain"> dataclass</span><br/></div><div class=token-line style=color:#393A34><span class="token plain" style=display:inline-block></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token decorator annotation punctuation" style=color:#393A34>@dataclass</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token keyword" style=color:#00009f>class</span><span class="token plain"> </span><span class="token class-name">User</span><span class="token punctuation" style=color:#393A34>:</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> name</span><span class="token punctuation" style=color:#393A34>:</span><span class="token plain"> </span><span class="token builtin">str</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"> age</span><span class="token punctuation" style=color:#393A34>:</span><span class="token plain"> pyfory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token plain">int32</span><br/></div><div class=token-line style=color:#393A34><span class="token plain" style=display:inline-block></span><br/></div><div class=token-line style=color:#393A34><span class="token plain">fory </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> pyfory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token plain">Fory</span><span class="token punctuation" style=color:#393A34>(</span><span class="token plain">xlang</span><span class="token operator" style=color:#393A34>=</span><span class="token boolean" style=color:#36acaa>True</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain">fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token plain">register</span><span class="token punctuation" style=color:#393A34>(</span><span class="token plain">User</span><span class="token punctuation" style=color:#393A34>,</span><span class="token plain"> type_id</span><span class="token operator" style=color:#393A34>=</span><span class="token number" style=color:#36acaa>1</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain" style=display:inline-block></span><br/></div><div class=token-line style=color:#393A34><span class="token plain">user </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> User</span><span class="token punctuation" style=color:#393A34>(</span><span class="token plain">name</span><span class="token operator" style=color:#393A34>=</span><span class="token string" style=color:#e3116c>"Alice"</span><span class="token punctuation" style=color:#393A34>,</span><span class="token plain"> age</span><span class="token operator" style=color:#393A34>=</span><span class="token number" style=color:#36acaa>30</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain">data </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token plain">serialize</span><span class="token punctuation" style=color:#393A34>(</span><span class="token plain">user</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain">decoded </span><span class="token operator" style=color:#393A34>=</span><span class="token plain"> fory</span><span class="token punctuation" style=color:#393A34>.</span><span class="token plain">deserialize</span><span class="token punctuation" style=color:#393A34>(</span><span class="token plain">data</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"></span><br/></div><div class=token-line style=color:#393A34><span class="token plain"></span><span class="token keyword" style=color:#00009f>print</span><span class="token punctuation" style=color:#393A34>(</span><span class="token plain">decoded</span><span class="token punctuation" style=color:#393A34>)</span><span class="token plain"> </span><span class="token comment" style=color:#999988;font-style:italic># User(name='Alice', age=30)</span><br/></div></code></pre></div></div> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=key-features>Key Features<a href=#key-features class=hash-link aria-label="Direct link to Key Features" title="Direct link to Key Features" translate=no></a></h2> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=high-performance-serialization>High-Performance Serialization<a href=#high-performance-serialization class=hash-link aria-label="Direct link to High-Performance Serialization" title="Direct link to High-Performance Serialization" translate=no></a></h3> |
| <p>Apache Fory™ delivers exceptional performance through advanced optimization techniques:</p> |
| <ul> |
| <li class=""><strong>JIT Compilation</strong>: Runtime code generation for Java eliminates virtual method calls and inlines hot paths</li> |
| <li class=""><strong>Static Code Generation</strong>: Compile-time code generation for Rust, C++, and Go delivers peak performance without runtime overhead</li> |
| <li class=""><strong>Zero-Copy Operations</strong>: Direct memory access without intermediate buffer copies; row format enables random access and partial serialization</li> |
| <li class=""><strong>Intelligent Encoding</strong>: Variable-length compression for integers and strings; SIMD acceleration for arrays (Java 16+)</li> |
| <li class=""><strong>Meta Sharing</strong>: Class metadata packing reduces redundant type information across serializations</li> |
| </ul> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=cross-language-serialization>Cross-Language Serialization<a href=#cross-language-serialization class=hash-link aria-label="Direct link to Cross-Language Serialization" title="Direct link to Cross-Language Serialization" translate=no></a></h3> |
| <p>The <strong><a class="" href=/docs/0.17/specification/xlang_serialization_spec>xlang serialization format</a></strong> enables seamless data exchange across programming languages:</p> |
| <ul> |
| <li class=""><strong>Automatic Type Mapping</strong>: Intelligent conversion between language-specific types (<a class="" href=/docs/0.17/specification/xlang_type_mapping>type mapping</a>)</li> |
| <li class=""><strong>Reference Preservation</strong>: Shared and circular references work correctly across languages</li> |
| <li class=""><strong>Polymorphism</strong>: Objects serialize/deserialize with their actual runtime types</li> |
| <li class=""><strong>Schema Evolution</strong>: Optional forward/backward compatibility for evolving schemas</li> |
| <li class=""><strong>Automatic Serialization</strong>: No IDL or schema definitions required; serialize any object directly without code generation</li> |
| </ul> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=row-format>Row Format<a href=#row-format class=hash-link aria-label="Direct link to Row Format" title="Direct link to Row Format" translate=no></a></h3> |
| <p>A cache-friendly <strong><a class="" href=/docs/0.17/specification/row_format_spec>row format</a></strong> optimized for analytics workloads:</p> |
| <ul> |
| <li class=""><strong>Zero-Copy Random Access</strong>: Read individual fields without deserializing entire objects</li> |
| <li class=""><strong>Partial Operations</strong>: Selective field serialization and deserialization for efficiency</li> |
| <li class=""><strong>Apache Arrow Integration</strong>: Seamless conversion to columnar format for analytics pipelines</li> |
| <li class=""><strong>Multi-Language</strong>: Available in Java, Python, Rust and C++</li> |
| </ul> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=security--production-readiness>Security & Production-Readiness<a href=#security--production-readiness class=hash-link aria-label="Direct link to Security & Production-Readiness" title="Direct link to Security & Production-Readiness" translate=no></a></h3> |
| <p>Enterprise-grade security and compatibility:</p> |
| <ul> |
| <li class=""><strong>Class Registration</strong>: Whitelist-based deserialization control (enabled by default)</li> |
| <li class=""><strong>Depth Limiting</strong>: Protection against recursive object graph attacks</li> |
| <li class=""><strong>Configurable Policies</strong>: Custom class checkers and deserialization policies</li> |
| <li class=""><strong>Platform Support</strong>: Java 8-24, GraalVM native image, multiple OS platforms</li> |
| </ul> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=protocols>Protocols<a href=#protocols class=hash-link aria-label="Direct link to Protocols" title="Direct link to Protocols" translate=no></a></h2> |
| <p>Apache Fory™ implements multiple binary protocols optimized for different scenarios:</p> |
| <table><thead><tr><th>Protocol<th>Use Case<th>Key Features<tbody><tr><td><strong><a class="" href=/docs/0.17/specification/xlang_serialization_spec>Xlang Serialization</a></strong><td>Cross-language object exchange<td>Automatic serialization, references, polymorphism<tr><td><strong><a class="" href=/docs/0.17/specification/java_serialization_spec>Java Serialization</a></strong><td>High-performance Java-only<td>Drop-in JDK serialization replacement, 100x faster<tr><td><strong><a class="" href=/docs/0.17/specification/row_format_spec>Row Format</a></strong><td>Analytics and data processing<td>Zero-copy random access, Arrow compatibility<tr><td><strong>Python Native</strong><td>Python-specific serialization<td>Pickle/cloudpickle replacement with better performance</table> |
| <p>All protocols share the same optimized codebase, allowing improvements in one protocol to benefit others.</p> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=documentation>Documentation<a href=#documentation class=hash-link aria-label="Direct link to Documentation" title="Direct link to Documentation" translate=no></a></h2> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=user-guides>User Guides<a href=#user-guides class=hash-link aria-label="Direct link to User Guides" title="Direct link to User Guides" translate=no></a></h3> |
| <table><thead><tr><th>Guide<th>Description<th>Source<th>Website<tbody><tr><td><strong>Java Serialization</strong><td>Comprehensive guide for Java serialization<td><a href=https://github.com/apache/fory/blob/main/docs/guide/java/ target=_blank rel="noopener noreferrer" class="">Java Guide</a><td><a class="" href=/docs/0.17/guide/java>View</a><tr><td><strong>Cross-Language Serialization</strong><td>Multi-language object exchange<td><a href=https://github.com/apache/fory/blob/main/docs/guide/xlang/ target=_blank rel="noopener noreferrer" class="">Xlang Guide</a><td><a class="" href=/docs/0.17/guide/xlang>View</a><tr><td><strong>Row Format</strong><td>Zero-copy random access format<td><a href=https://github.com/apache/fory/blob/main/docs/guide/java/row-format.md target=_blank rel="noopener noreferrer" class="">Java Row Format</a><td><a class="" href=/docs/0.17/guide/java/row_format>View</a><tr><td><strong>Python</strong><td>Python-specific features and usage<td><a href=https://github.com/apache/fory/blob/main/docs/guide/python/ target=_blank rel="noopener noreferrer" class="">Python Guide</a><td><a class="" href=/docs/0.17/guide/python>View</a><tr><td><strong>Rust</strong><td>Rust implementation and patterns<td><a href=https://github.com/apache/fory/blob/main/docs/guide/rust/ target=_blank rel="noopener noreferrer" class="">Rust Guide</a><td><a class="" href=/docs/0.17/guide/rust>View</a><tr><td><strong>Go</strong><td>Go implementation and usage<td><a href=https://github.com/apache/fory/blob/main/docs/guide/go/ target=_blank rel="noopener noreferrer" class="">Go Guide</a><td><a class="" href=/docs/0.17/guide/go>View</a><tr><td><strong>Scala</strong><td>Scala integration and best practices<td><a href=https://github.com/apache/fory/blob/main/docs/guide/scala/ target=_blank rel="noopener noreferrer" class="">Scala Guide</a><td><a class="" href=/docs/0.17/guide/scala>View</a><tr><td><strong>GraalVM</strong><td>Native image support and AOT compilation<td><a href=https://github.com/apache/fory/blob/main/docs/guide/java/graalvm-support.md target=_blank rel="noopener noreferrer" class="">GraalVM Support</a><td><a class="" href=/docs/0.17/guide/java/graalvm_support>View</a><tr><td><strong>Development</strong><td>Building and contributing to Fory<td><a href=https://github.com/apache/fory/blob/main/docs/DEVELOPMENT.md target=_blank rel="noopener noreferrer" class="">Development</a><td><a class="" href=/docs/0.17/community/development>View</a></table> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=protocol-specifications>Protocol Specifications<a href=#protocol-specifications class=hash-link aria-label="Direct link to Protocol Specifications" title="Direct link to Protocol Specifications" translate=no></a></h3> |
| <table><thead><tr><th>Specification<th>Description<th>Source<th>Website<tbody><tr><td><strong>Xlang Serialization</strong><td>Cross-language binary protocol<td><a href=https://github.com/apache/fory/blob/main/docs/specification/xlang_serialization_spec.md target=_blank rel="noopener noreferrer" class="">xlang_serialization_spec.md</a><td><a class="" href=/docs/0.17/specification/xlang_serialization_spec>View</a><tr><td><strong>Java Serialization</strong><td>Java-optimized protocol<td><a href=https://github.com/apache/fory/blob/main/docs/specification/java_serialization_spec.md target=_blank rel="noopener noreferrer" class="">java_serialization_spec.md</a><td><a class="" href=/docs/0.17/specification/java_serialization_spec>View</a><tr><td><strong>Row Format</strong><td>Row-based binary format<td><a href=https://github.com/apache/fory/blob/main/docs/specification/row_format_spec.md target=_blank rel="noopener noreferrer" class="">row_format_spec.md</a><td><a class="" href=/docs/0.17/specification/row_format_spec>View</a><tr><td><strong>Type Mapping</strong><td>Cross-language type conversion<td><a href=https://github.com/apache/fory/blob/main/docs/specification/xlang_type_mapping.md target=_blank rel="noopener noreferrer" class="">xlang_type_mapping.md</a><td><a class="" href=/docs/0.17/specification/xlang_type_mapping>View</a></table> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=compatibility>Compatibility<a href=#compatibility class=hash-link aria-label="Direct link to Compatibility" title="Direct link to Compatibility" translate=no></a></h2> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=schema-compatibility>Schema Compatibility<a href=#schema-compatibility class=hash-link aria-label="Direct link to Schema Compatibility" title="Direct link to Schema Compatibility" translate=no></a></h3> |
| <p>Apache Fory™ supports class schema forward/backward compatibility across <strong>Java, Python, Rust, and Golang</strong>, enabling seamless schema evolution in production systems without requiring coordinated upgrades across all services. Fory provides two schema compatibility modes:</p> |
| <ol> |
| <li class=""> |
| <p><strong>Schema Consistent Mode (Default)</strong>: Assumes identical class schemas between serialization and deserialization peers. This mode offers minimal serialization overhead, smallest data size, and fastest performance: ideal for stable schemas or controlled environments.</p> |
| </li> |
| <li class=""> |
| <p><strong>Compatible Mode</strong>: Supports independent schema evolution with forward and backward compatibility. This mode enables field addition/deletion, limited type evolution, and graceful handling of schema mismatches. Enable using <code>withCompatibleMode(CompatibleMode.COMPATIBLE)</code> in Java, <code>compatible=True</code> in Python, <code>compatible_mode(true)</code> in Rust, or <code>NewFory(true)</code> in Go.</p> |
| </li> |
| </ol> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=binary-compatibility>Binary Compatibility<a href=#binary-compatibility class=hash-link aria-label="Direct link to Binary Compatibility" title="Direct link to Binary Compatibility" translate=no></a></h3> |
| <p><strong>Current Status</strong>: Binary compatibility is <strong>not guaranteed</strong> between Fory major releases as the protocol continues to evolve. However, compatibility <strong>is guaranteed</strong> between minor versions (e.g., 0.13.x).</p> |
| <p><strong>Recommendations</strong>:</p> |
| <ul> |
| <li class="">Version your serialized data by Fory major version</li> |
| <li class="">Plan migration strategies when upgrading major versions</li> |
| <li class="">See <a class="" href=/docs/0.17/guide/java/migration>upgrade guide</a> for details</li> |
| </ul> |
| <p><strong>Future</strong>: Binary compatibility will be guaranteed starting from Fory 1.0 release.</p> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=security>Security<a href=#security class=hash-link aria-label="Direct link to Security" title="Direct link to Security" translate=no></a></h2> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=overview>Overview<a href=#overview class=hash-link aria-label="Direct link to Overview" title="Direct link to Overview" translate=no></a></h3> |
| <p>Serialization security varies by protocol:</p> |
| <ul> |
| <li class=""><strong>Row Format</strong>: Secure with predefined schemas</li> |
| <li class=""><strong>Object Graph Serialization</strong> (Java/Python native): More flexible but requires careful security configuration</li> |
| </ul> |
| <p>Dynamic serialization can deserialize arbitrary types, which may introduces risks. For example, the deserialization may invoke <code>init</code> constructor or <code>equals/hashCode</code> method, if the method body contains malicious code, the system will be at risk.</p> |
| <p>Fory enables class registration <strong>by default</strong> for dynamic protocols, allowing only trusted registered types. |
| <strong>Do not disable class registration unless you can ensure your environment is secure</strong>.</p> |
| <p>If this option is disabled, you are responsible for serialization security. You should implement and configure a customized <code>ClassChecker</code> or <code>DeserializationPolicy</code> for fine-grained security control</p> |
| <p>To report security vulnerabilities in Apache Fory™, please follow the <a href=https://apache.org/security/#reporting-a-vulnerability target=_blank rel="noopener noreferrer" class="">ASF vulnerability reporting process</a>.</p> |
| <h2 class="anchor anchorTargetStickyNavbar_Vzrq" id=community-and-support>Community and Support<a href=#community-and-support class=hash-link aria-label="Direct link to Community and Support" title="Direct link to Community and Support" translate=no></a></h2> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=getting-help>Getting Help<a href=#getting-help class=hash-link aria-label="Direct link to Getting Help" title="Direct link to Getting Help" translate=no></a></h3> |
| <ul> |
| <li class=""><strong>Slack</strong>: Join our <a href=https://join.slack.com/t/fory-project/shared_invite/zt-36g0qouzm-kcQSvV_dtfbtBKHRwT5gsw target=_blank rel="noopener noreferrer" class="">Slack workspace</a> for community discussions</li> |
| <li class=""><strong>Twitter/X</strong>: Follow <a href=https://x.com/ApacheFory target=_blank rel="noopener noreferrer" class="">@ApacheFory</a> for updates and announcements</li> |
| <li class=""><strong>GitHub Issues</strong>: Report bugs and request features at <a href=https://github.com/apache/fory/issues target=_blank rel="noopener noreferrer" class="">apache/fory</a></li> |
| <li class=""><strong>Mailing Lists</strong>: Subscribe to Apache Fory mailing lists for development discussions</li> |
| </ul> |
| <h3 class="anchor anchorTargetStickyNavbar_Vzrq" id=contributing>Contributing<a href=#contributing class=hash-link aria-label="Direct link to Contributing" title="Direct link to Contributing" translate=no></a></h3> |
| <p>We welcome contributions! Please read our <a href=https://github.com/apache/fory/blob/main/CONTRIBUTING.md target=_blank rel="noopener noreferrer" class="">Contributing Guide</a> to get started.</p> |
| <p><strong>Ways to Contribute</strong>:</p> |
| <ul> |
| <li class="">Report bugs and issues</li> |
| <li class="">Propose new features</li> |
| <li class="">Improve documentation</li> |
| <li class="">Submit pull requests</li> |
| <li class="">Add test cases</li> |
| <li class="">Share benchmarks</li> |
| </ul> |
| <p>See <a class="" href=/docs/0.17/community/development>Development Guide</a> for build instructions and development workflow.</div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="row margin-top--sm theme-doc-footer-edit-meta-row"><div class="col noPrint_WFHX"><a href=https://github.com/apache/fory-site/tree/main/docs/introduction/overview.md target=_blank rel="noopener noreferrer" class=theme-edit-this-page><svg fill=currentColor height=20 width=20 viewBox="0 0 40 40" class=iconEdit_Z9Sw aria-hidden=true><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"/></g></svg>Edit this page</a></div><div class="col lastUpdated_JAkA"></div></div></footer></article><nav class="docusaurus-mt-lg pagination-nav" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--next" href=/docs/0.17/introduction/overview><div class=pagination-nav__sublabel>Next</div><div 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| Copyright © 2026 The Apache Software Foundation, Licensed under the Apache License, Version 2.0. <br/> |
| Apache Fory, Fory, Apache, the Apache Logo and the Apache Fory logo are either registered trademarks or trademarks of the Apache Software Foundation in the United States and/or other countries. |
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