Uses of Class
org.apache.arrow.vector.types.pojo.Schema

Packages that use Schema

Package	Description
org.apache.arrow.adapter.avro
org.apache.arrow.adapter.jdbc
org.apache.arrow.adapter.orc
org.apache.arrow.c
org.apache.arrow.dataset.jni
org.apache.arrow.dataset.scanner
org.apache.arrow.dataset.source
org.apache.arrow.flight
org.apache.arrow.flight.sql
org.apache.arrow.gandiva.evaluator
org.apache.arrow.gandiva.expression
org.apache.arrow.vector
org.apache.arrow.vector.ipc
org.apache.arrow.vector.ipc.message
org.apache.arrow.vector.table
org.apache.arrow.vector.types.pojo
org.apache.arrow.vector.util
org.apache.arrow.vector.validate

Uses of Schema in org.apache.arrow.adapter.avro

Methods in org.apache.arrow.adapter.avro that return Schema

Modifier and Type	Method	Description
static Schema	AvroToArrow.avroToAvroSchema(org.apache.avro.Schema schema, AvroToArrowConfig config)	Convert an Avro schema to its Arrow equivalent.

Uses of Schema in org.apache.arrow.adapter.jdbc

Methods in org.apache.arrow.adapter.jdbc that return Schema

Modifier and Type	Method	Description
static Schema	JdbcToArrowUtils.jdbcToArrowSchema(ParameterMetaData parameterMetaData, Calendar calendar)	Create Arrow Schema object for the given JDBC ResultSetMetaData.
static Schema	JdbcToArrowUtils.jdbcToArrowSchema(ResultSetMetaData rsmd, Calendar calendar)	Create Arrow Schema object for the given JDBC ResultSetMetaData.
static Schema	JdbcToArrowUtils.jdbcToArrowSchema(ResultSetMetaData rsmd, JdbcToArrowConfig config)	Create Arrow Schema object for the given JDBC ResultSetMetaData.

Uses of Schema in org.apache.arrow.adapter.orc

Methods in org.apache.arrow.adapter.orc that return Schema

Modifier and Type	Method	Description
protected Schema	OrcStripeReader.readSchema()

Uses of Schema in org.apache.arrow.c

Methods in org.apache.arrow.c that return Schema

Modifier and Type	Method	Description
static Schema	Data.importSchema(BufferAllocator allocator, ArrowSchema schema, CDataDictionaryProvider provider)	Equivalent to calling importSchema(allocator, schema, provider, true).
static Schema	Data.importSchema(BufferAllocator allocator, ArrowSchema schema, CDataDictionaryProvider provider, boolean closeImportedStructs)	Import Java Schema from the C data interface.

Methods in org.apache.arrow.c with parameters of type Schema

Modifier and Type	Method	Description
static void	Data.exportSchema(BufferAllocator allocator, Schema schema, DictionaryProvider provider, ArrowSchema out)	Export Java Schema using the C data interface format.

Constructors in org.apache.arrow.c with parameters of type Schema

Modifier	Constructor	Description
	StructVectorLoader(Schema schema)	Construct with a schema.
	StructVectorLoader(Schema schema, CompressionCodec.Factory factory)	Construct with a schema and a compression codec factory.

Uses of Schema in org.apache.arrow.dataset.jni

Methods in org.apache.arrow.dataset.jni that return Schema

Modifier and Type	Method	Description
Schema	NativeDatasetFactory.inspect()
protected Schema	NativeScanner.NativeReader.readSchema()
Schema	NativeScanner.schema()

Methods in org.apache.arrow.dataset.jni with parameters of type Schema

Modifier and Type	Method	Description
NativeDataset	NativeDatasetFactory.finish(Schema schema)

Uses of Schema in org.apache.arrow.dataset.scanner

Methods in org.apache.arrow.dataset.scanner that return Schema

Modifier and Type	Method	Description
protected Schema	ArrowScannerReader.readSchema()
Schema	Scanner.schema()	Get the schema of this Scanner.

Uses of Schema in org.apache.arrow.dataset.source

Methods in org.apache.arrow.dataset.source that return Schema

Modifier and Type	Method	Description
Schema	DatasetFactory.inspect()	Get unified schema for the resulting Dataset.

Methods in org.apache.arrow.dataset.source with parameters of type Schema

Modifier and Type	Method	Description
Dataset	DatasetFactory.finish(Schema schema)	Create a Dataset with predefined schema.

Uses of Schema in org.apache.arrow.flight

Methods in org.apache.arrow.flight that return Schema

Modifier and Type	Method	Description
Schema	FlightInfo.getSchema()	Deprecated. Deprecated.
Schema	FlightStream.getSchema()	Get the schema for this stream.
Schema	SchemaResult.getSchema()

Methods in org.apache.arrow.flight that return types with arguments of type Schema

Modifier and Type	Method	Description
Optional<Schema>	FlightInfo.getSchemaOptional()

Methods in org.apache.arrow.flight with parameters of type Schema

Modifier and Type	Method	Description
static FlightInfo.Builder	FlightInfo.builder(Schema schema, FlightDescriptor descriptor, List<FlightEndpoint> endpoints)	Create a builder for FlightInfo.

Constructors in org.apache.arrow.flight with parameters of type Schema

Modifier	Constructor	Description
	FlightInfo(Schema schema, FlightDescriptor descriptor, List<FlightEndpoint> endpoints, long bytes, long records)	Constructs a new instance.
	FlightInfo(Schema schema, FlightDescriptor descriptor, List<FlightEndpoint> endpoints, long bytes, long records, boolean ordered, IpcOption option)	Constructs a new instance.
	FlightInfo(Schema schema, FlightDescriptor descriptor, List<FlightEndpoint> endpoints, long bytes, long records, boolean ordered, IpcOption option, byte[] appMetadata)	Constructs a new instance.
	FlightInfo(Schema schema, FlightDescriptor descriptor, List<FlightEndpoint> endpoints, long bytes, long records, IpcOption option)	Constructs a new instance.
	SchemaResult(Schema schema)
	SchemaResult(Schema schema, IpcOption option)	Create a schema result with specific IPC options for serialization.

Uses of Schema in org.apache.arrow.flight.sql

Fields in org.apache.arrow.flight.sql declared as Schema

Modifier and Type	Field	Description
static final Schema	FlightSqlProducer.Schemas.GET_CATALOGS_SCHEMA
static final Schema	FlightSqlProducer.Schemas.GET_CROSS_REFERENCE_SCHEMA
static final Schema	FlightSqlProducer.Schemas.GET_EXPORTED_KEYS_SCHEMA
static final Schema	FlightSqlProducer.Schemas.GET_IMPORTED_KEYS_SCHEMA
static final Schema	FlightSqlProducer.Schemas.GET_PRIMARY_KEYS_SCHEMA
static final Schema	FlightSqlProducer.Schemas.GET_SCHEMAS_SCHEMA
static final Schema	FlightSqlProducer.Schemas.GET_SQL_INFO_SCHEMA
static final Schema	FlightSqlProducer.Schemas.GET_TABLE_TYPES_SCHEMA
static final Schema	FlightSqlProducer.Schemas.GET_TABLES_SCHEMA
static final Schema	FlightSqlProducer.Schemas.GET_TABLES_SCHEMA_NO_SCHEMA
static final Schema	FlightSqlProducer.Schemas.GET_TYPE_INFO_SCHEMA

Methods in org.apache.arrow.flight.sql that return Schema

Modifier and Type	Method	Description
Schema	FlightSqlClient.PreparedStatement.getParameterSchema()	Returns the Schema of the parameters.
Schema	FlightSqlClient.PreparedStatement.getResultSetSchema()	Returns the Schema of the resultset.

Methods in org.apache.arrow.flight.sql with parameters of type Schema

Modifier and Type	Method	Description
protected abstract <T extends com.google.protobuf.Message> List<FlightEndpoint>	BasicFlightSqlProducer.determineEndpoints(T request, FlightDescriptor flightDescriptor, Schema schema)	Return a list of FlightEndpoints for the given request and FlightDescriptor.
protected <T extends com.google.protobuf.Message> FlightInfo	BasicFlightSqlProducer.generateFlightInfo(T request, FlightDescriptor descriptor, Schema schema)

Uses of Schema in org.apache.arrow.gandiva.evaluator

Methods in org.apache.arrow.gandiva.evaluator with parameters of type Schema

Modifier and Type	Method	Description
static Filter	Filter.make(Schema schema, Condition condition)	Invoke this function to generate LLVM code to evaluate the condition expression.
static Filter	Filter.make(Schema schema, Condition condition, boolean optimize)	Deprecated.
static Filter	Filter.make(Schema schema, Condition condition, long configurationId)	Invoke this function to generate LLVM code to evaluate the condition expression.
static Filter	Filter.make(Schema schema, Condition condition, ConfigurationBuilder.ConfigOptions configOptions)	Invoke this function to generate LLVM code to evaluate the condition expression.
static Projector	Projector.make(Schema schema, List<ExpressionTree> exprs)	Invoke this function to generate LLVM code to evaluate the list of project expressions.
static Projector	Projector.make(Schema schema, List<ExpressionTree> exprs, boolean optimize)	Deprecated.
static Projector	Projector.make(Schema schema, List<ExpressionTree> exprs, ConfigurationBuilder.ConfigOptions configOptions)	Invoke this function to generate LLVM code to evaluate the list of project expressions.
static Projector	Projector.make(Schema schema, List<ExpressionTree> exprs, GandivaTypes.SelectionVectorType selectionVectorType)	Invoke this function to generate LLVM code to evaluate the list of project expressions.
static Projector	Projector.make(Schema schema, List<ExpressionTree> exprs, GandivaTypes.SelectionVectorType selectionVectorType, boolean optimize)	Deprecated.
static Projector	Projector.make(Schema schema, List<ExpressionTree> exprs, GandivaTypes.SelectionVectorType selectionVectorType, long configurationId)	Invoke this function to generate LLVM code to evaluate the list of project expressions.
static Projector	Projector.make(Schema schema, List<ExpressionTree> exprs, GandivaTypes.SelectionVectorType selectionVectorType, ConfigurationBuilder.ConfigOptions configOptions)	Invoke this function to generate LLVM code to evaluate the list of project expressions.

Uses of Schema in org.apache.arrow.gandiva.expression

Methods in org.apache.arrow.gandiva.expression with parameters of type Schema

Modifier and Type	Method	Description
static GandivaTypes.Schema	ArrowTypeHelper.arrowSchemaToProtobuf(Schema schema)	Converts a schema object to a protobuf.

Uses of Schema in org.apache.arrow.vector

Methods in org.apache.arrow.vector that return Schema

Modifier and Type	Method	Description
Schema	VectorSchemaRoot.getSchema()

Methods in org.apache.arrow.vector with parameters of type Schema

Modifier and Type	Method	Description
static VectorSchemaRoot	VectorSchemaRoot.create(Schema schema, BufferAllocator allocator)	Creates a new set of empty vectors corresponding to the given schema.

Constructors in org.apache.arrow.vector with parameters of type Schema

Modifier	Constructor	Description
	VectorSchemaRoot(Schema schema, List<FieldVector> fieldVectors, int rowCount)	Constructs a new instance.

Uses of Schema in org.apache.arrow.vector.ipc

Fields in org.apache.arrow.vector.ipc declared as Schema

Modifier and Type	Field	Description
protected final Schema	ArrowWriter.schema

Methods in org.apache.arrow.vector.ipc that return Schema

Modifier and Type	Method	Description
protected Schema	ArrowFileReader.readSchema()
protected abstract Schema	ArrowReader.readSchema()	Read the Schema from the source, will be invoked at the beginning the initialization.
protected Schema	ArrowStreamReader.readSchema()	Reads the schema message from the beginning of the stream.
Schema	JsonFileReader.start()	Reads the beginning (schema section) of the json file and returns it.

Methods in org.apache.arrow.vector.ipc with parameters of type Schema

Modifier and Type	Method	Description
void	JsonFileWriter.start(Schema schema, DictionaryProvider provider)	Writes out the "header" of the file including the schema and any dictionaries required.

Uses of Schema in org.apache.arrow.vector.ipc.message

Methods in org.apache.arrow.vector.ipc.message that return Schema

Modifier and Type	Method	Description
static Schema	MessageSerializer.deserializeSchema(Message schemaMessage)	Deserializes an Arrow Schema object from a schema message.
static Schema	MessageSerializer.deserializeSchema(MessageMetadataResult message)	Deserializes an Arrow Schema object from a MessageMetadataResult.
static Schema	MessageSerializer.deserializeSchema(ReadChannel in)	Deserializes an Arrow Schema read from the input channel.
Schema	ArrowFooter.getSchema()

Methods in org.apache.arrow.vector.ipc.message with parameters of type Schema

Modifier and Type	Method	Description
static long	MessageSerializer.serialize(WriteChannel out, Schema schema)	Serialize a schema object.
static long	MessageSerializer.serialize(WriteChannel out, Schema schema, IpcOption option)	Serialize a schema object.
static ByteBuffer	MessageSerializer.serializeMetadata(Schema schema)	Deprecated.
static ByteBuffer	MessageSerializer.serializeMetadata(Schema schema, IpcOption writeOption)	Returns the serialized flatbuffer bytes of the schema wrapped in a message table.

Constructors in org.apache.arrow.vector.ipc.message with parameters of type Schema

Modifier	Constructor	Description
	ArrowFooter(Schema schema, List<ArrowBlock> dictionaries, List<ArrowBlock> recordBatches)
	ArrowFooter(Schema schema, List<ArrowBlock> dictionaries, List<ArrowBlock> recordBatches, Map<String,String> metaData)	Constructs a new instance.
	ArrowFooter(Schema schema, List<ArrowBlock> dictionaries, List<ArrowBlock> recordBatches, Map<String,String> metaData, MetadataVersion metadataVersion)	Constructs a new instance.

Uses of Schema in org.apache.arrow.vector.table

Fields in org.apache.arrow.vector.table declared as Schema

Modifier and Type	Field	Description
protected Schema	BaseTable.schema	The schema for the table.

Methods in org.apache.arrow.vector.table that return Schema

Modifier and Type	Method	Description
Schema	BaseTable.getSchema()	Returns the schema for this Table.

Uses of Schema in org.apache.arrow.vector.types.pojo

Methods in org.apache.arrow.vector.types.pojo that return Schema

Modifier and Type	Method	Description
static Schema	Schema.convertSchema(Schema schema)	Converts a flatbuffer schema to its POJO representation.
static Schema	Schema.deserialize(ByteBuffer buffer)	Deprecated.
static Schema	Schema.deserializeMessage(ByteBuffer buffer)	Deserialize a schema that has been serialized as a message using serializeAsMessage().
static Schema	Schema.fromJSON(String json)

Uses of Schema in org.apache.arrow.vector.util

Methods in org.apache.arrow.vector.util that return Schema

Modifier and Type	Method	Description
static Schema	SchemaUtility.deserialize(byte[] bytes, BufferAllocator allocator)	Deserialize Arrow schema from byte array.

Methods in org.apache.arrow.vector.util with parameters of type Schema

Modifier and Type	Method	Description
static void	Validator.compareSchemas(Schema schema1, Schema schema2)	Validate two arrow schemas are equal.
static byte[]	SchemaUtility.serialize(Schema schema)	Serialize Arrow schema into byte array.

Uses of Schema in org.apache.arrow.vector.validate

Methods in org.apache.arrow.vector.validate with parameters of type Schema

Modifier and Type	Method	Description
static void	MetadataV4UnionChecker.checkRead(Schema schema, MetadataVersion metadataVersion)	Check the schema, raising an error if an unsupported feature is used (e.g. unions with < V5 metadata).