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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Flow source schema management and stateless streaming execution."><title>flow::adapter - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-1ed95124.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.98.1 (48a229cea 2026-09-01)" data-channel="1.98.1" data-search-js="search-9944d736.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../sidebar-items.js"></script><script defer src="../../static.files/main-417ebf0a.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc mod"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">Module adapter</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../flow/index.html">flow</a><span class="version">1.4.0-alpha.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module adapter</a></h2><h3><a href="#modules">Module Items</a></h3><ul class="block"><li><a href="#modules" title="Modules">Modules</a></li><li><a href="#structs" title="Structs">Structs</a></li><li><a href="#enums" title="Enums">Enums</a></li><li><a href="#constants" title="Constants">Constants</a></li><li><a href="#functions" title="Functions">Functions</a></li><li><a href="#types" title="Type Aliases">Type Aliases</a></li></ul></section><div id="rustdoc-modnav"><h2 class="in-crate"><a href="../index.html">In crate flow</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">flow</a></div><h1>Module <span>adapter</span> <button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/flow/adapter.rs.html#15-1249">Source</a> </span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Flow source schema management and stateless streaming execution.</p>
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</div></details><h2 id="modules" class="section-header">Modules<a href="#modules" class="anchor">§</a></h2><dl class="item-table"><dt><a class="mod" href="flownode_impl/index.html" title="mod flow::adapter::flownode_impl">flownode_<wbr>impl</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>impl <code>FlowNode</code> trait for FlowNodeManager so standalone can call them</dd><dt><a class="mod" href="stateless/index.html" title="mod flow::adapter::stateless">stateless</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Stateless DataFusion execution for streaming flows.</dd><dt><a class="mod" href="table_source/index.html" title="mod flow::adapter::table_source">table_<wbr>source</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>How to query table information from database</dd><dt><a class="mod" href="util/index.html" title="mod flow::adapter::util">util</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Util functions for adapter</dd></dl><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><dl class="item-table"><dt><a class="struct" href="struct.FlowConfig.html" title="struct flow::adapter::FlowConfig">Flow<wbr>Config</a></dt><dt><a class="struct" href="struct.FlownodeOptions.html" title="struct flow::adapter::FlownodeOptions">Flownode<wbr>Options</a></dt><dt><a class="struct" href="struct.StatelessFlowRuntime.html" title="struct flow::adapter::StatelessFlowRuntime">Stateless<wbr>Flow<wbr>Runtime</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="struct" href="struct.StatelessFlowSlot.html" title="struct flow::adapter::StatelessFlowSlot">Stateless<wbr>Flow<wbr>Slot</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="struct" href="struct.StreamingEngine.html" title="struct flow::adapter::StreamingEngine">Streaming<wbr>Engine</a></dt></dl><h2 id="enums" class="section-header">Enums<a href="#enums" class="anchor">§</a></h2><dl class="item-table"><dt><a class="enum" href="enum.FetchFromRow.html" title="enum flow::adapter::FetchFromRow">Fetch<wbr>From<wbr>Row</a><span title="Restricted Visibility"> 🔒</span> </dt></dl><h2 id="constants" class="section-header">Constants<a href="#constants" class="anchor">§</a></h2><dl class="item-table"><dt><a class="constant" href="constant.AUTO_CREATED_PLACEHOLDER_TS_COL.html" title="constant flow::adapter::AUTO_CREATED_PLACEHOLDER_TS_COL">AUTO_<wbr>CREATED_<wbr>PLACEHOLDER_<wbr>TS_<wbr>COL</a></dt><dt><a class="constant" href="constant.AUTO_CREATED_UPDATE_AT_TS_COL.html" title="constant flow::adapter::AUTO_CREATED_UPDATE_AT_TS_COL">AUTO_<wbr>CREATED_<wbr>UPDATE_<wbr>AT_<wbr>TS_<wbr>COL</a></dt></dl><h2 id="functions" class="section-header">Functions<a href="#functions" class="anchor">§</a></h2><dl class="item-table"><dt><a class="fn" href="fn.default_num_workers.html" title="fn flow::adapter::default_num_workers">default_<wbr>num_<wbr>workers</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.is_explicit_source_timestamp_compatibility.html" title="fn flow::adapter::is_explicit_source_timestamp_compatibility">is_<wbr>explicit_<wbr>source_<wbr>timestamp_<wbr>compatibility</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Returns whether an existing sink uses the legacy explicit source-time-index layout.</dd><dt><a class="fn" href="fn.output_column_schemas.html" title="fn flow::adapter::output_column_schemas">output_<wbr>column_<wbr>schemas</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Converts a retained plan’s output to logical schemas. Only a direct source
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column (optionally wrapped in an alias) carries source semantics; computed
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expressions deliberately use the physical output field metadata instead.</dd><dt><a class="fn" href="fn.relation_desc_from_output.html" title="fn flow::adapter::relation_desc_from_output">relation_<wbr>desc_<wbr>from_<wbr>output</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.resolve_sink_layout.html" title="fn flow::adapter::resolve_sink_layout">resolve_<wbr>sink_<wbr>layout</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Resolves the columns appended by the flow, validating the complete output/sink layout.</dd><dt><a class="fn" href="fn.sink_output_column_count.html" title="fn flow::adapter::sink_output_column_count">sink_<wbr>output_<wbr>column_<wbr>count</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Legacy helper for callers that only have a sink schema. New stateless flows
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resolve the suffix against both schemas and store it in <code>StatelessFlow</code>.</dd><dt><a class="fn" href="fn.validate_auto_column_names.html" title="fn flow::adapter::validate_auto_column_names">validate_<wbr>auto_<wbr>column_<wbr>names</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.validate_captured_slot.html" title="fn flow::adapter::validate_captured_slot">validate_<wbr>captured_<wbr>slot</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.validate_sink_layout.html" title="fn flow::adapter::validate_sink_layout">validate_<wbr>sink_<wbr>layout</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.validate_sink_layout_with_suffix.html" title="fn flow::adapter::validate_sink_layout_with_suffix">validate_<wbr>sink_<wbr>layout_<wbr>with_<wbr>suffix</a><span title="Restricted Visibility"> 🔒</span> </dt></dl><h2 id="types" class="section-header">Type Aliases<a href="#types" class="anchor">§</a></h2><dl class="item-table"><dt><a class="type" href="type.FlowStreamingEngineRef.html" title="type flow::adapter::FlowStreamingEngineRef">Flow<wbr>Streaming<wbr>Engine<wbr>Ref</a></dt></dl></section></div></main></body></html> |