| <!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="Parquet row group writer API. Provides methods to access column writers in an iterator-like fashion, order is guaranteed to match the order of schema leaves (column descriptors)."><title>SerializedRowGroupWriter in parquet::file::writer - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-46f98efaafac5295.ttf.woff2,FiraSans-Regular-018c141bf0843ffd.woff2,FiraSans-Medium-8f9a781e4970d388.woff2,SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2,SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../../static.files/rustdoc-dd39b87e5fcfba68.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="parquet" data-themes="" 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class="sidebar-crate"><h2><a href="../../../parquet/index.html">parquet</a><span class="version">51.0.0</span></h2></div><h2 class="location"><a href="#">SerializedRowGroupWriter</a></h2><div class="sidebar-elems"><section><h3><a href="#fields">Fields</a></h3><ul class="block structfield"><li><a href="#structfield.bloom_filters">bloom_filters</a></li><li><a href="#structfield.buf">buf</a></li><li><a href="#structfield.column_chunks">column_chunks</a></li><li><a href="#structfield.column_index">column_index</a></li><li><a href="#structfield.column_indexes">column_indexes</a></li><li><a href="#structfield.descr">descr</a></li><li><a href="#structfield.file_offset">file_offset</a></li><li><a href="#structfield.offset_indexes">offset_indexes</a></li><li><a href="#structfield.on_close">on_close</a></li><li><a href="#structfield.props">props</a></li><li><a href="#structfield.row_group_index">row_group_index</a></li><li><a href="#structfield.row_group_metadata">row_group_metadata</a></li><li><a href="#structfield.total_bytes_written">total_bytes_written</a></li><li><a href="#structfield.total_rows_written">total_rows_written</a></li><li><a href="#structfield.total_uncompressed_bytes">total_uncompressed_bytes</a></li></ul><h3><a href="#implementations">Methods</a></h3><ul class="block method"><li><a href="#method.append_column">append_column</a></li><li><a href="#method.assert_previous_writer_closed">assert_previous_writer_closed</a></li><li><a href="#method.close">close</a></li><li><a href="#method.get_on_close">get_on_close</a></li><li><a href="#method.new">new</a></li><li><a href="#method.next_column">next_column</a></li><li><a href="#method.next_column_desc">next_column_desc</a></li><li><a href="#method.next_column_with_factory">next_column_with_factory</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block synthetic-implementation"><li><a href="#impl-RefUnwindSafe-for-SerializedRowGroupWriter%3C'a,+W%3E">!RefUnwindSafe</a></li><li><a href="#impl-Sync-for-SerializedRowGroupWriter%3C'a,+W%3E">!Sync</a></li><li><a href="#impl-UnwindSafe-for-SerializedRowGroupWriter%3C'a,+W%3E">!UnwindSafe</a></li><li><a href="#impl-Freeze-for-SerializedRowGroupWriter%3C'a,+W%3E">Freeze</a></li><li><a href="#impl-Send-for-SerializedRowGroupWriter%3C'a,+W%3E">Send</a></li><li><a href="#impl-Unpin-for-SerializedRowGroupWriter%3C'a,+W%3E">Unpin</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block blanket-implementation"><li><a href="#impl-Any-for-T">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-T">Borrow<T></a></li><li><a href="#impl-BorrowMut%3CT%3E-for-T">BorrowMut<T></a></li><li><a href="#impl-From%3CT%3E-for-T">From<T></a></li><li><a href="#impl-Into%3CU%3E-for-T">Into<U></a></li><li><a href="#impl-IntoEither-for-T">IntoEither</a></li><li><a href="#impl-TryFrom%3CU%3E-for-T">TryFrom<U></a></li><li><a href="#impl-TryInto%3CU%3E-for-T">TryInto<U></a></li></ul></section><h2><a href="index.html">In parquet::file::writer</a></h2></div></nav><div class="sidebar-resizer"></div><main><div class="width-limiter"><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><h1>Struct <a href="../../index.html">parquet</a>::<wbr><a href="../index.html">file</a>::<wbr><a href="index.html">writer</a>::<wbr><a class="struct" href="#">SerializedRowGroupWriter</a><button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><span class="out-of-band"><a class="src" href="../../../src/parquet/file/writer.rs.html#456-472">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><code>pub struct SerializedRowGroupWriter<'a, W: <a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::Write">Write</a>> {<details class="toggle type-contents-toggle"><summary class="hideme"><span>Show 15 fields</span></summary> |
| descr: <a class="type" href="../../schema/types/type.SchemaDescPtr.html" title="type parquet::schema::types::SchemaDescPtr">SchemaDescPtr</a>, |
| props: <a class="type" href="../properties/type.WriterPropertiesPtr.html" title="type parquet::file::properties::WriterPropertiesPtr">WriterPropertiesPtr</a>, |
| buf: &'a mut <a class="struct" href="struct.TrackedWrite.html" title="struct parquet::file::writer::TrackedWrite">TrackedWrite</a><W>, |
| total_rows_written: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>>, |
| total_bytes_written: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>, |
| total_uncompressed_bytes: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>, |
| column_index: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, |
| row_group_metadata: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="type" href="../metadata/type.RowGroupMetaDataPtr.html" title="type parquet::file::metadata::RowGroupMetaDataPtr">RowGroupMetaDataPtr</a>>, |
| column_chunks: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="struct" href="../metadata/struct.ColumnChunkMetaData.html" title="struct parquet::file::metadata::ColumnChunkMetaData">ColumnChunkMetaData</a>>, |
| bloom_filters: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../bloom_filter/struct.Sbbf.html" title="struct parquet::bloom_filter::Sbbf">Sbbf</a>>>, |
| column_indexes: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../format/struct.ColumnIndex.html" title="struct parquet::format::ColumnIndex">ColumnIndex</a>>>, |
| offset_indexes: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../format/struct.OffsetIndex.html" title="struct parquet::format::OffsetIndex">OffsetIndex</a>>>, |
| row_group_index: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a>, |
| file_offset: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>, |
| on_close: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="type" href="type.OnCloseRowGroup.html" title="type parquet::file::writer::OnCloseRowGroup">OnCloseRowGroup</a><'a>>, |
| </details>}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Parquet row group writer API. |
| Provides methods to access column writers in an iterator-like fashion, order is |
| guaranteed to match the order of schema leaves (column descriptors).</p> |
| <p>All columns should be written sequentially; the main workflow is:</p> |
| <ul> |
| <li>Request the next column using <code>next_column</code> method - this will return <code>None</code> if no |
| more columns are available to write.</li> |
| <li>Once done writing a column, close column writer with <code>close</code></li> |
| <li>Once all columns have been written, close row group writer with <code>close</code> method - |
| it will return row group metadata and is no-op on already closed row group.</li> |
| </ul> |
| </div></details><h2 id="fields" class="fields section-header">Fields<a href="#fields" class="anchor">§</a></h2><span id="structfield.descr" class="structfield section-header"><a href="#structfield.descr" class="anchor field">§</a><code>descr: <a class="type" href="../../schema/types/type.SchemaDescPtr.html" title="type parquet::schema::types::SchemaDescPtr">SchemaDescPtr</a></code></span><span id="structfield.props" class="structfield section-header"><a href="#structfield.props" class="anchor field">§</a><code>props: <a class="type" href="../properties/type.WriterPropertiesPtr.html" title="type parquet::file::properties::WriterPropertiesPtr">WriterPropertiesPtr</a></code></span><span id="structfield.buf" class="structfield section-header"><a href="#structfield.buf" class="anchor field">§</a><code>buf: &'a mut <a class="struct" href="struct.TrackedWrite.html" title="struct parquet::file::writer::TrackedWrite">TrackedWrite</a><W></code></span><span id="structfield.total_rows_written" class="structfield section-header"><a href="#structfield.total_rows_written" class="anchor field">§</a><code>total_rows_written: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>></code></span><span id="structfield.total_bytes_written" class="structfield section-header"><a href="#structfield.total_bytes_written" class="anchor field">§</a><code>total_bytes_written: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a></code></span><span id="structfield.total_uncompressed_bytes" class="structfield section-header"><a href="#structfield.total_uncompressed_bytes" class="anchor field">§</a><code>total_uncompressed_bytes: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a></code></span><span id="structfield.column_index" class="structfield section-header"><a href="#structfield.column_index" class="anchor field">§</a><code>column_index: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></code></span><span id="structfield.row_group_metadata" class="structfield section-header"><a href="#structfield.row_group_metadata" class="anchor field">§</a><code>row_group_metadata: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="type" href="../metadata/type.RowGroupMetaDataPtr.html" title="type parquet::file::metadata::RowGroupMetaDataPtr">RowGroupMetaDataPtr</a>></code></span><span id="structfield.column_chunks" class="structfield section-header"><a href="#structfield.column_chunks" class="anchor field">§</a><code>column_chunks: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="struct" href="../metadata/struct.ColumnChunkMetaData.html" title="struct parquet::file::metadata::ColumnChunkMetaData">ColumnChunkMetaData</a>></code></span><span id="structfield.bloom_filters" class="structfield section-header"><a href="#structfield.bloom_filters" class="anchor field">§</a><code>bloom_filters: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../bloom_filter/struct.Sbbf.html" title="struct parquet::bloom_filter::Sbbf">Sbbf</a>>></code></span><span id="structfield.column_indexes" class="structfield section-header"><a href="#structfield.column_indexes" class="anchor field">§</a><code>column_indexes: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../format/struct.ColumnIndex.html" title="struct parquet::format::ColumnIndex">ColumnIndex</a>>></code></span><span id="structfield.offset_indexes" class="structfield section-header"><a href="#structfield.offset_indexes" class="anchor field">§</a><code>offset_indexes: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../format/struct.OffsetIndex.html" title="struct parquet::format::OffsetIndex">OffsetIndex</a>>></code></span><span id="structfield.row_group_index" class="structfield section-header"><a href="#structfield.row_group_index" class="anchor field">§</a><code>row_group_index: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a></code></span><span id="structfield.file_offset" class="structfield section-header"><a href="#structfield.file_offset" class="anchor field">§</a><code>file_offset: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a></code></span><span id="structfield.on_close" class="structfield section-header"><a href="#structfield.on_close" class="anchor field">§</a><code>on_close: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="type" href="type.OnCloseRowGroup.html" title="type parquet::file::writer::OnCloseRowGroup">OnCloseRowGroup</a><'a>></code></span><h2 id="implementations" class="section-header">Implementations<a href="#implementations" class="anchor">§</a></h2><div id="implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-SerializedRowGroupWriter%3C'a,+W%3E" class="impl"><a class="src rightside" href="../../../src/parquet/file/writer.rs.html#474-697">source</a><a href="#impl-SerializedRowGroupWriter%3C'a,+W%3E" class="anchor">§</a><h3 class="code-header">impl<'a, W: <a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::Write">Write</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>> <a class="struct" href="struct.SerializedRowGroupWriter.html" title="struct parquet::file::writer::SerializedRowGroupWriter">SerializedRowGroupWriter</a><'a, W></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.new" class="method"><a class="src rightside" href="../../../src/parquet/file/writer.rs.html#483-509">source</a><h4 class="code-header">pub fn <a href="#method.new" class="fn">new</a>( |
| schema_descr: <a class="type" href="../../schema/types/type.SchemaDescPtr.html" title="type parquet::schema::types::SchemaDescPtr">SchemaDescPtr</a>, |
| properties: <a class="type" href="../properties/type.WriterPropertiesPtr.html" title="type parquet::file::properties::WriterPropertiesPtr">WriterPropertiesPtr</a>, |
| buf: &'a mut <a class="struct" href="struct.TrackedWrite.html" title="struct parquet::file::writer::TrackedWrite">TrackedWrite</a><W>, |
| row_group_index: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a>, |
| on_close: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="type" href="type.OnCloseRowGroup.html" title="type parquet::file::writer::OnCloseRowGroup">OnCloseRowGroup</a><'a>> |
| ) -> Self</h4></section></summary><div class="docblock"><p>Creates a new <code>SerializedRowGroupWriter</code> with:</p> |
| <ul> |
| <li><code>schema_descr</code> - the schema to write</li> |
| <li><code>properties</code> - writer properties</li> |
| <li><code>buf</code> - the buffer to write data to</li> |
| <li><code>row_group_index</code> - row group index in this parquet file.</li> |
| <li><code>file_offset</code> - file offset of this row group in this parquet file.</li> |
| <li><code>on_close</code> - an optional callback that will invoked on <a href="struct.SerializedRowGroupWriter.html#method.close" title="method parquet::file::writer::SerializedRowGroupWriter::close"><code>Self::close</code></a></li> |
| </ul> |
| </div></details><details class="toggle method-toggle" open><summary><section id="method.next_column_desc" class="method"><a class="src rightside" href="../../../src/parquet/file/writer.rs.html#512-516">source</a><h4 class="code-header">fn <a href="#method.next_column_desc" class="fn">next_column_desc</a>(&mut self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="type" href="../../schema/types/type.ColumnDescPtr.html" title="type parquet::schema::types::ColumnDescPtr">ColumnDescPtr</a>></h4></section></summary><div class="docblock"><p>Advance <code>self.column_index</code> returning the next <a href="../../schema/types/type.ColumnDescPtr.html" title="type parquet::schema::types::ColumnDescPtr"><code>ColumnDescPtr</code></a> if any</p> |
| </div></details><details class="toggle method-toggle" open><summary><section id="method.get_on_close" class="method"><a class="src rightside" href="../../../src/parquet/file/writer.rs.html#519-552">source</a><h4 class="code-header">fn <a href="#method.get_on_close" class="fn">get_on_close</a>(&mut self) -> (&mut <a class="struct" href="struct.TrackedWrite.html" title="struct parquet::file::writer::TrackedWrite">TrackedWrite</a><W>, <a class="type" href="type.OnCloseColumnChunk.html" title="type parquet::file::writer::OnCloseColumnChunk">OnCloseColumnChunk</a><'_>)</h4></section></summary><div class="docblock"><p>Returns <a href="type.OnCloseColumnChunk.html" title="type parquet::file::writer::OnCloseColumnChunk"><code>OnCloseColumnChunk</code></a> for the next writer</p> |
| </div></details><details class="toggle method-toggle" open><summary><section id="method.next_column_with_factory" class="method"><a class="src rightside" href="../../../src/parquet/file/writer.rs.html#556-575">source</a><h4 class="code-header">pub(crate) fn <a href="#method.next_column_with_factory" class="fn">next_column_with_factory</a><'b, F, C>( |
| &'b mut self, |
| factory: F |
| ) -> <a class="type" href="../../errors/type.Result.html" title="type parquet::errors::Result">Result</a><<a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><C>><div class="where">where |
| F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(<a class="type" href="../../schema/types/type.ColumnDescPtr.html" title="type parquet::schema::types::ColumnDescPtr">ColumnDescPtr</a>, <a class="type" href="../properties/type.WriterPropertiesPtr.html" title="type parquet::file::properties::WriterPropertiesPtr">WriterPropertiesPtr</a>, <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><dyn <a class="trait" href="../../column/page/trait.PageWriter.html" title="trait parquet::column::page::PageWriter">PageWriter</a> + 'b>, <a class="type" href="type.OnCloseColumnChunk.html" title="type parquet::file::writer::OnCloseColumnChunk">OnCloseColumnChunk</a><'b>) -> <a class="type" href="../../errors/type.Result.html" title="type parquet::errors::Result">Result</a><C>,</div></h4></section></summary><div class="docblock"><p>Returns the next column writer, if available, using the factory function; |
| otherwise returns <code>None</code>.</p> |
| </div></details><details class="toggle method-toggle" open><summary><section id="method.next_column" class="method"><a class="src rightside" href="../../../src/parquet/file/writer.rs.html#580-585">source</a><h4 class="code-header">pub fn <a href="#method.next_column" class="fn">next_column</a>(&mut self) -> <a class="type" href="../../errors/type.Result.html" title="type parquet::errors::Result">Result</a><<a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="struct.SerializedColumnWriter.html" title="struct parquet::file::writer::SerializedColumnWriter">SerializedColumnWriter</a><'_>>></h4></section></summary><div class="docblock"><p>Returns the next column writer, if available; otherwise returns <code>None</code>. |
| In case of any IO error or Thrift error, or if row group writer has already been |
| closed returns <code>Err</code>.</p> |
| </div></details><details class="toggle method-toggle" open><summary><section id="method.append_column" class="method"><a class="src rightside" href="../../../src/parquet/file/writer.rs.html#593-655">source</a><h4 class="code-header">pub fn <a href="#method.append_column" class="fn">append_column</a><R: <a class="trait" href="../reader/trait.ChunkReader.html" title="trait parquet::file::reader::ChunkReader">ChunkReader</a>>( |
| &mut self, |
| reader: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&R</a>, |
| close: <a class="struct" href="../../column/writer/struct.ColumnCloseResult.html" title="struct parquet::column::writer::ColumnCloseResult">ColumnCloseResult</a> |
| ) -> <a class="type" href="../../errors/type.Result.html" title="type parquet::errors::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></h4></section></summary><div class="docblock"><p>Append an encoded column chunk from another source without decoding it</p> |
| <p>This can be used for efficiently concatenating or projecting parquet data, |
| or encoding parquet data to temporary in-memory buffers</p> |
| <p>See <a href="struct.SerializedRowGroupWriter.html#method.next_column" title="method parquet::file::writer::SerializedRowGroupWriter::next_column"><code>Self::next_column</code></a> for writing data that isn’t already encoded</p> |
| </div></details><details class="toggle method-toggle" open><summary><section id="method.close" class="method"><a class="src rightside" href="../../../src/parquet/file/writer.rs.html#658-687">source</a><h4 class="code-header">pub fn <a href="#method.close" class="fn">close</a>(self) -> <a class="type" href="../../errors/type.Result.html" title="type parquet::errors::Result">Result</a><<a class="type" href="../metadata/type.RowGroupMetaDataPtr.html" title="type parquet::file::metadata::RowGroupMetaDataPtr">RowGroupMetaDataPtr</a>></h4></section></summary><div class="docblock"><p>Closes this row group writer and returns row group metadata.</p> |
| </div></details><section id="method.assert_previous_writer_closed" class="method"><a class="src rightside" href="../../../src/parquet/file/writer.rs.html#690-696">source</a><h4 class="code-header">fn <a href="#method.assert_previous_writer_closed" class="fn">assert_previous_writer_closed</a>(&self) -> <a class="type" href="../../errors/type.Result.html" title="type parquet::errors::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></h4></section></div></details></div><h2 id="synthetic-implementations" class="section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor">§</a></h2><div id="synthetic-implementations-list"><section id="impl-Freeze-for-SerializedRowGroupWriter%3C'a,+W%3E" class="impl"><a href="#impl-Freeze-for-SerializedRowGroupWriter%3C'a,+W%3E" class="anchor">§</a><h3 class="code-header">impl<'a, W> <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Freeze.html" title="trait core::marker::Freeze">Freeze</a> for <a class="struct" href="struct.SerializedRowGroupWriter.html" title="struct parquet::file::writer::SerializedRowGroupWriter">SerializedRowGroupWriter</a><'a, W></h3></section><section id="impl-RefUnwindSafe-for-SerializedRowGroupWriter%3C'a,+W%3E" class="impl"><a href="#impl-RefUnwindSafe-for-SerializedRowGroupWriter%3C'a,+W%3E" class="anchor">§</a><h3 class="code-header">impl<'a, W> !<a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.SerializedRowGroupWriter.html" title="struct parquet::file::writer::SerializedRowGroupWriter">SerializedRowGroupWriter</a><'a, W></h3></section><section id="impl-Send-for-SerializedRowGroupWriter%3C'a,+W%3E" class="impl"><a href="#impl-Send-for-SerializedRowGroupWriter%3C'a,+W%3E" class="anchor">§</a><h3 class="code-header">impl<'a, W> <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="struct.SerializedRowGroupWriter.html" title="struct parquet::file::writer::SerializedRowGroupWriter">SerializedRowGroupWriter</a><'a, W><div class="where">where |
| W: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,</div></h3></section><section id="impl-Sync-for-SerializedRowGroupWriter%3C'a,+W%3E" class="impl"><a href="#impl-Sync-for-SerializedRowGroupWriter%3C'a,+W%3E" class="anchor">§</a><h3 class="code-header">impl<'a, W> !<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="struct.SerializedRowGroupWriter.html" title="struct parquet::file::writer::SerializedRowGroupWriter">SerializedRowGroupWriter</a><'a, W></h3></section><section id="impl-Unpin-for-SerializedRowGroupWriter%3C'a,+W%3E" class="impl"><a href="#impl-Unpin-for-SerializedRowGroupWriter%3C'a,+W%3E" class="anchor">§</a><h3 class="code-header">impl<'a, W> <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="struct.SerializedRowGroupWriter.html" title="struct parquet::file::writer::SerializedRowGroupWriter">SerializedRowGroupWriter</a><'a, W></h3></section><section id="impl-UnwindSafe-for-SerializedRowGroupWriter%3C'a,+W%3E" class="impl"><a href="#impl-UnwindSafe-for-SerializedRowGroupWriter%3C'a,+W%3E" class="anchor">§</a><h3 class="code-header">impl<'a, W> !<a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.SerializedRowGroupWriter.html" title="struct parquet::file::writer::SerializedRowGroupWriter">SerializedRowGroupWriter</a><'a, W></h3></section></div><h2 id="blanket-implementations" class="section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor">§</a></h2><div id="blanket-implementations-list"><details class="toggle implementors-toggle"><summary><section id="impl-Any-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#140">source</a><a href="#impl-Any-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T<div class="where">where |
| T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#141">source</a><a href="#method.type_id" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fn">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#208">source</a><a href="#impl-Borrow%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T<div class="where">where |
| T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#210">source</a><a href="#method.borrow" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fn">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&T</a></h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#216">source</a><a href="#impl-BorrowMut%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T<div class="where">where |
| T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#217">source</a><a href="#method.borrow_mut" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fn">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut T</a></h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#765">source</a><a href="#impl-From%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#768">source</a><a href="#method.from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(t: T) -> T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p> |
| </div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#748-750">source</a><a href="#impl-Into%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T<div class="where">where |
| U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#758">source</a><a href="#method.into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fn">into</a>(self) -> U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p> |
| <p>That is, this conversion is whatever the implementation of |
| <code><a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for U</code> chooses to do.</p> |
| </div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-IntoEither-for-T" class="impl"><a class="src rightside" href="https://docs.rs/either/1/src/either/into_either.rs.html#64">source</a><a href="#impl-IntoEither-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://docs.rs/either/1/either/into_either/trait.IntoEither.html" title="trait either::into_either::IntoEither">IntoEither</a> for T</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.into_either" class="method trait-impl"><a class="src rightside" href="https://docs.rs/either/1/src/either/into_either.rs.html#29">source</a><a href="#method.into_either" class="anchor">§</a><h4 class="code-header">fn <a href="https://docs.rs/either/1/either/into_either/trait.IntoEither.html#method.into_either" class="fn">into_either</a>(self, into_left: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -> <a class="enum" href="https://docs.rs/either/1/either/enum.Either.html" title="enum either::Either">Either</a><Self, Self></h4></section></summary><div class='docblock'>Converts <code>self</code> into a <a href="https://docs.rs/either/1/either/enum.Either.html#variant.Left" title="variant either::Either::Left"><code>Left</code></a> variant of <a href="https://docs.rs/either/1/either/enum.Either.html" title="enum either::Either"><code>Either<Self, Self></code></a> |
| if <code>into_left</code> is <code>true</code>. |
| Converts <code>self</code> into a <a href="https://docs.rs/either/1/either/enum.Either.html#variant.Right" title="variant either::Either::Right"><code>Right</code></a> variant of <a href="https://docs.rs/either/1/either/enum.Either.html" title="enum either::Either"><code>Either<Self, Self></code></a> |
| otherwise. <a href="https://docs.rs/either/1/either/into_either/trait.IntoEither.html#method.into_either">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.into_either_with" class="method trait-impl"><a class="src rightside" href="https://docs.rs/either/1/src/either/into_either.rs.html#55-57">source</a><a href="#method.into_either_with" class="anchor">§</a><h4 class="code-header">fn <a href="https://docs.rs/either/1/either/into_either/trait.IntoEither.html#method.into_either_with" class="fn">into_either_with</a><F>(self, into_left: F) -> <a class="enum" href="https://docs.rs/either/1/either/enum.Either.html" title="enum either::Either">Either</a><Self, Self><div class="where">where |
| F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&Self</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>,</div></h4></section></summary><div class='docblock'>Converts <code>self</code> into a <a href="https://docs.rs/either/1/either/enum.Either.html#variant.Left" title="variant either::Either::Left"><code>Left</code></a> variant of <a href="https://docs.rs/either/1/either/enum.Either.html" title="enum either::Either"><code>Either<Self, Self></code></a> |
| if <code>into_left(&self)</code> returns <code>true</code>. |
| Converts <code>self</code> into a <a href="https://docs.rs/either/1/either/enum.Either.html#variant.Right" title="variant either::Either::Right"><code>Right</code></a> variant of <a href="https://docs.rs/either/1/either/enum.Either.html" title="enum either::Either"><code>Either<Self, Self></code></a> |
| otherwise. <a href="https://docs.rs/either/1/either/into_either/trait.IntoEither.html#method.into_either_with">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#805-807">source</a><a href="#impl-TryFrom%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T<div class="where">where |
| U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl"><a href="#associatedtype.Error" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#812">source</a><a href="#method.try_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fn">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#790-792">source</a><a href="#impl-TryInto%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T<div class="where">where |
| U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl"><a href="#associatedtype.Error-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#797">source</a><a href="#method.try_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fn">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main></body></html> |
