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| <h1 title="All Classes and Interfaces" class="title">All Classes and Interfaces</h1> |
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| <div class="summary-table two-column-summary"> |
| <div class="table-header col-first">Class</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/ArrowReadOptions.html" title="class in org.apache.datafusion">ArrowReadOptions</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Configuration knobs for Arrow IPC sources passed to <a href="org/apache/datafusion/SessionContext.html#registerArrow(java.lang.String,java.lang.String,org.apache.datafusion.ArrowReadOptions)"><code>SessionContext.registerArrow(String, String, ArrowReadOptions)</code></a> and <a href="org/apache/datafusion/SessionContext.html#readArrow(java.lang.String,org.apache.datafusion.ArrowReadOptions)"><code>SessionContext.readArrow(String, ArrowReadOptions)</code></a>.</div> |
| </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/AvroReadOptions.html" title="class in org.apache.datafusion">AvroReadOptions</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Configuration knobs for Avro sources passed to <a href="org/apache/datafusion/SessionContext.html#registerAvro(java.lang.String,java.lang.String,org.apache.datafusion.AvroReadOptions)"><code>SessionContext.registerAvro(String, String, AvroReadOptions)</code></a> and <a href="org/apache/datafusion/SessionContext.html#readAvro(java.lang.String,org.apache.datafusion.AvroReadOptions)"><code>SessionContext.readAvro(String, AvroReadOptions)</code></a>.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/CacheManagerOptions.html" title="class in org.apache.datafusion">CacheManagerOptions</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Configuration for DataFusion's built-in <code>CacheManager</code>.</div> |
| </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/CacheManagerOptions.Builder.html" title="class in org.apache.datafusion">CacheManagerOptions.Builder</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Builder for <a href="org/apache/datafusion/CacheManagerOptions.html" title="class in org.apache.datafusion"><code>CacheManagerOptions</code></a>.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab1"><a href="org/apache/datafusion/ColumnarValue.html" title="interface in org.apache.datafusion">ColumnarValue</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab1"> |
| <div class="block">The value of a scalar UDF argument or result: either a per-row <a href="org/apache/datafusion/ColumnarValue.Array.html" title="class in org.apache.datafusion"><code>ColumnarValue.Array</code></a> of length <code> |
| rowCount</code>, or a <a href="org/apache/datafusion/ColumnarValue.Scalar.html" title="class in org.apache.datafusion"><code>ColumnarValue.Scalar</code></a> (length-1 vector) that the framework broadcasts.</div> |
| </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab4"><a href="org/apache/datafusion/ColumnarValue.Array.html" title="class in org.apache.datafusion">ColumnarValue.Array</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab4"> |
| <div class="block">Per-row Arrow vector of length equal to the batch row count.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab4"><a href="org/apache/datafusion/ColumnarValue.Scalar.html" title="class in org.apache.datafusion">ColumnarValue.Scalar</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab4"> |
| <div class="block">Length-1 Arrow vector representing a single value broadcast across all rows.</div> |
| </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab5"><a href="org/apache/datafusion/ConfigurationException.html" title="class in org.apache.datafusion">ConfigurationException</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab5"> |
| <div class="block">Invalid or unrecognised DataFusion configuration option.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/CsvReadOptions.html" title="class in org.apache.datafusion">CsvReadOptions</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Configuration knobs for CSV sources passed to <a href="org/apache/datafusion/SessionContext.html#registerCsv(java.lang.String,java.lang.String,org.apache.datafusion.CsvReadOptions)"><code>SessionContext.registerCsv(String, String, CsvReadOptions)</code></a> and <a href="org/apache/datafusion/SessionContext.html#readCsv(java.lang.String,org.apache.datafusion.CsvReadOptions)"><code>SessionContext.readCsv(String, CsvReadOptions)</code></a>.</div> |
| </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/CsvWriteOptions.html" title="class in org.apache.datafusion">CsvWriteOptions</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Configuration knobs for writing CSV, passed to <a href="org/apache/datafusion/DataFrame.html#writeCsv(java.lang.String,org.apache.datafusion.CsvWriteOptions)"><code>DataFrame.writeCsv(String, CsvWriteOptions)</code></a>.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/DataFrame.html" title="class in org.apache.datafusion">DataFrame</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">A lazy representation of a query plan, mirroring the Rust DataFusion <code>DataFrame</code>.</div> |
| </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab5"><a href="org/apache/datafusion/DataFusionException.html" title="class in org.apache.datafusion">DataFusionException</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab5"> |
| <div class="block">Base unchecked exception for every error surfaced from the native DataFusion side.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab5"><a href="org/apache/datafusion/ExecutionException.html" title="class in org.apache.datafusion">ExecutionException</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab5"> |
| <div class="block">Runtime execution failure: a UDF threw, a join task panicked, an external (non-DataFusion) error |
| propagated up, or an FFI-level failure surfaced.</div> |
| </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab3"><a href="org/apache/datafusion/FileCompressionType.html" title="enum class in org.apache.datafusion">FileCompressionType</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab3"> |
| <div class="block">Compression of a file-format source.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab5"><a href="org/apache/datafusion/IoException.html" title="class in org.apache.datafusion">IoException</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab5"> |
| <div class="block">IO-shaped failure: a local filesystem read failed, an object store request failed, or a parquet / |
| arrow / avro decoder reported a malformed file.</div> |
| </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/internal/JniBridge.html" title="class in org.apache.datafusion.internal">JniBridge</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Internal trampoline invoked from native code on every UDF call.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab3"><a href="org/apache/datafusion/JoinType.html" title="enum class in org.apache.datafusion">JoinType</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab3"> |
| <div class="block">Join algorithm requested for <a href="org/apache/datafusion/DataFrame.html#join(org.apache.datafusion.DataFrame,org.apache.datafusion.JoinType,java.lang.String%5B%5D,java.lang.String%5B%5D)"><code>DataFrame.join(org.apache.datafusion.DataFrame, org.apache.datafusion.JoinType, java.lang.String[], java.lang.String[])</code></a> / <a href="org/apache/datafusion/DataFrame.html#joinOn(org.apache.datafusion.DataFrame,org.apache.datafusion.JoinType,java.lang.String...)"><code>DataFrame.joinOn(org.apache.datafusion.DataFrame, org.apache.datafusion.JoinType, java.lang.String...)</code></a>.</div> |
| </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/JsonWriteOptions.html" title="class in org.apache.datafusion">JsonWriteOptions</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Configuration knobs for writing JSON, passed to <a href="org/apache/datafusion/DataFrame.html#writeJson(java.lang.String,org.apache.datafusion.JsonWriteOptions)"><code>DataFrame.writeJson(String, JsonWriteOptions)</code></a>.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/MemoryUsage.html" title="class in org.apache.datafusion">MemoryUsage</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Snapshot of session-wide memory usage from <a href="org/apache/datafusion/SessionContext.html#memoryUsage()"><code>SessionContext.memoryUsage()</code></a>.</div> |
| </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/NativeLibraryLoader.html" title="class in org.apache.datafusion">NativeLibraryLoader</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Loads the <code>datafusion_jni</code> native library on demand.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/NdJsonReadOptions.html" title="class in org.apache.datafusion">NdJsonReadOptions</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Configuration knobs for newline-delimited JSON sources passed to <a href="org/apache/datafusion/SessionContext.html#registerJson(java.lang.String,java.lang.String,org.apache.datafusion.NdJsonReadOptions)"><code>SessionContext.registerJson(String, String, NdJsonReadOptions)</code></a> and <a href="org/apache/datafusion/SessionContext.html#readJson(java.lang.String,org.apache.datafusion.NdJsonReadOptions)"><code>SessionContext.readJson(String, NdJsonReadOptions)</code></a>.</div> |
| </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab5"><a href="org/apache/datafusion/NotImplementedException.html" title="class in org.apache.datafusion">NotImplementedException</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab5"> |
| <div class="block">The requested feature is recognised by DataFusion but not implemented yet.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/ObjectStoreOptions.html" title="class in org.apache.datafusion">ObjectStoreOptions</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Description of an <code>object_store::ObjectStore</code> backend to register on a <a href="org/apache/datafusion/SessionContext.html" title="class in org.apache.datafusion"><code>SessionContext</code></a>'s <code>RuntimeEnv</code>.</div> |
| </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/ObjectStoreOptions.Gcs.html" title="class in org.apache.datafusion">ObjectStoreOptions.Gcs</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Google Cloud Storage.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/ObjectStoreOptions.Gcs.Builder.html" title="class in org.apache.datafusion">ObjectStoreOptions.Gcs.Builder</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab2"> </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/ObjectStoreOptions.Http.html" title="class in org.apache.datafusion">ObjectStoreOptions.Http</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Listing-capable HTTP / WebDAV store.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/ObjectStoreOptions.Http.Builder.html" title="class in org.apache.datafusion">ObjectStoreOptions.Http.Builder</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab2"> </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/ObjectStoreOptions.S3.html" title="class in org.apache.datafusion">ObjectStoreOptions.S3</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Amazon S3 (and any S3-compatible endpoint such as MinIO, Cloudflare R2, Wasabi).</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/ObjectStoreOptions.S3.Builder.html" title="class in org.apache.datafusion">ObjectStoreOptions.S3.Builder</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab2"> </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/ParquetReadOptions.html" title="class in org.apache.datafusion">ParquetReadOptions</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Configuration knobs for parquet sources passed to <a href="org/apache/datafusion/SessionContext.html#registerParquet(java.lang.String,java.lang.String,org.apache.datafusion.ParquetReadOptions)"><code>SessionContext.registerParquet(String, String, ParquetReadOptions)</code></a> and <a href="org/apache/datafusion/SessionContext.html#readParquet(java.lang.String,org.apache.datafusion.ParquetReadOptions)"><code>SessionContext.readParquet(String, ParquetReadOptions)</code></a>.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/ParquetWriteOptions.html" title="class in org.apache.datafusion">ParquetWriteOptions</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Configuration knobs for writing parquet, passed to <a href="org/apache/datafusion/DataFrame.html#writeParquet(java.lang.String,org.apache.datafusion.ParquetWriteOptions)"><code>DataFrame.writeParquet(String, ParquetWriteOptions)</code></a>.</div> |
| </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab5"><a href="org/apache/datafusion/PlanException.html" title="class in org.apache.datafusion">PlanException</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab5"> |
| <div class="block">SQL parsing, logical planning, or schema-resolution failure.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab5"><a href="org/apache/datafusion/ResourcesExhaustedException.html" title="class in org.apache.datafusion">ResourcesExhaustedException</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab5"> |
| <div class="block">The DataFusion runtime exhausted a configured resource budget — typically the memory pool, but |
| applies to any guard upstream surfaces as <code>DataFusionError::ResourcesExhausted</code>.</div> |
| </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/RuntimeStats.html" title="class in org.apache.datafusion">RuntimeStats</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Snapshot of the underlying Tokio runtime from <a href="org/apache/datafusion/SessionContext.html#runtimeStats()"><code>SessionContext.runtimeStats()</code></a>.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab1"><a href="org/apache/datafusion/ScalarFunction.html" title="interface in org.apache.datafusion">ScalarFunction</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab1"> |
| <div class="block">A Java-implemented scalar SQL function.</div> |
| </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab4"><a href="org/apache/datafusion/ScalarFunctionArgs.html" title="class in org.apache.datafusion">ScalarFunctionArgs</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab4"> |
| <div class="block">Bundle of inputs passed to <a href="org/apache/datafusion/ScalarFunction.html#evaluate(org.apache.arrow.memory.BufferAllocator,org.apache.datafusion.ScalarFunctionArgs)"><code>ScalarFunction.evaluate(org.apache.arrow.memory.BufferAllocator, org.apache.datafusion.ScalarFunctionArgs)</code></a>: the per-arg <a href="org/apache/datafusion/ColumnarValue.html" title="interface in org.apache.datafusion"><code>ColumnarValue</code></a>s |
| (in declared order) and the batch row count DataFusion is driving.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/ScalarUdf.html" title="class in org.apache.datafusion">ScalarUdf</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">A scalar UDF registration handle: pairs a <a href="org/apache/datafusion/ScalarFunction.html" title="interface in org.apache.datafusion"><code>ScalarFunction</code></a> implementation with the metadata |
| DataFusion needs to dispatch SQL calls to it.</div> |
| </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/proto/SchemaConverter.html" title="class in org.apache.datafusion.proto">SchemaConverter</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Convert between Arrow Java <code>Schema</code> and the <code>datafusion_common.Schema</code> protobuf shape |
| used by DataFusion plan messages such as <code>ListingTableScanNode.schema</code>.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/SessionContext.html" title="class in org.apache.datafusion">SessionContext</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">A DataFusion session context.</div> |
| </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/SessionContextBuilder.html" title="class in org.apache.datafusion">SessionContextBuilder</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Builder for a configured <a href="org/apache/datafusion/SessionContext.html" title="class in org.apache.datafusion"><code>SessionContext</code></a>.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/SimpleTableProvider.html" title="class in org.apache.datafusion">SimpleTableProvider</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">A <a href="org/apache/datafusion/TableProvider.html" title="interface in org.apache.datafusion"><code>TableProvider</code></a> that pairs a fixed <code>Schema</code> with a function that opens a fresh |
| <code>ArrowReader</code> for each scan.</div> |
| </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/SortExpr.html" title="class in org.apache.datafusion">SortExpr</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">A single sort key passed to <a href="org/apache/datafusion/DataFrame.html#sort(org.apache.datafusion.SortExpr...)"><code>DataFrame.sort(SortExpr...)</code></a>, mirroring DataFusion's <code> |
| expr::Sort{ expr, asc, nulls_first }</code>.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab1"><a href="org/apache/datafusion/TableProvider.html" title="interface in org.apache.datafusion">TableProvider</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab1"> |
| <div class="block">A Java-implemented table that can be registered with a <a href="org/apache/datafusion/SessionContext.html" title="class in org.apache.datafusion"><code>SessionContext</code></a> via <a href="org/apache/datafusion/SessionContext.html#registerTable(java.lang.String,org.apache.datafusion.TableProvider)"><code>SessionContext.registerTable(String, TableProvider)</code></a>.</div> |
| </div> |
| <div class="col-first odd-row-color all-classes-table all-classes-table-tab2"><a href="org/apache/datafusion/UnnestOptions.html" title="class in org.apache.datafusion">UnnestOptions</a></div> |
| <div class="col-last odd-row-color all-classes-table all-classes-table-tab2"> |
| <div class="block">Configuration knobs for <a href="org/apache/datafusion/DataFrame.html#unnestColumns(org.apache.datafusion.UnnestOptions,java.lang.String...)"><code>DataFrame.unnestColumns(UnnestOptions, String...)</code></a>, mirroring |
| DataFusion's <code>UnnestOptions</code>.</div> |
| </div> |
| <div class="col-first even-row-color all-classes-table all-classes-table-tab3"><a href="org/apache/datafusion/Volatility.html" title="enum class in org.apache.datafusion">Volatility</a></div> |
| <div class="col-last even-row-color all-classes-table all-classes-table-tab3"> |
| <div class="block">Volatility classification for a UDF.</div> |
| </div> |
| </div> |
| </div> |
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