クラスの使用
org.apache.arrow.vector.types.pojo.Field

Fieldを使用しているパッケージ

パッケージ	説明
org.apache.arrow.vector
org.apache.arrow.vector.complex
org.apache.arrow.vector.complex.impl
org.apache.arrow.vector.complex.reader
org.apache.arrow.vector.complex.writer
org.apache.arrow.vector.types.pojo
org.apache.arrow.vector.util

org.apache.arrow.vectorでのFieldの使用

Fieldとして宣言されているorg.apache.arrow.vectorのフィールド

修飾子とタイプ	フィールドと説明
protected Field	BaseFixedWidthVector.field
protected Field	BaseVariableWidthVector.field

Fieldを返すorg.apache.arrow.vectorのメソッド

修飾子とタイプ	メソッドと説明
Field	ZeroVector.getField()
Field	ExtensionTypeVector.getField()
Field	BaseFixedWidthVector.getField() Get information about how this field is materialized.
Field	ValueVector.getField() Get information about how this field is materialized.
Field	BaseVariableWidthVector.getField() Get information about how this field is materialized.

Field型の型引数を持つorg.apache.arrow.vectorのメソッド・パラメータ

修飾子とタイプ	メソッドと説明
void	ZeroVector.initializeChildrenFromFields(List<Field> children)
void	FieldVector.initializeChildrenFromFields(List<Field> children) Initializes the child vectors to be later loaded with loadBuffers.
void	ExtensionTypeVector.initializeChildrenFromFields(List<Field> children)
void	BaseFixedWidthVector.initializeChildrenFromFields(List<Field> children) Initialize the children in schema for this Field.
void	BaseVariableWidthVector.initializeChildrenFromFields(List<Field> children) Initialize the children in schema for this Field.

Field型の型引数を持つorg.apache.arrow.vectorのコンストラクタ・パラメータ

コンストラクタと説明
VectorSchemaRoot(List<Field> fields, List<FieldVector> fieldVectors, int rowCount) Constructs a new instance.

org.apache.arrow.vector.complexでのFieldの使用

Fieldを返すorg.apache.arrow.vector.complexのメソッド

修飾子とタイプ	メソッドと説明
Field	UnionVector.getField()
Field	NonNullableStructVector.getField()
Field	FixedSizeListVector.getField()
Field	ListVector.getField()

Field型の型引数を持つorg.apache.arrow.vector.complexのメソッド・パラメータ

修飾子とタイプ	メソッドと説明
void	UnionVector.initializeChildrenFromFields(List<Field> children)
void	NonNullableStructVector.initializeChildrenFromFields(List<Field> children) Initializes the struct's members from the given Fields.
void	MapVector.initializeChildrenFromFields(List<Field> children) Initialize child vectors of the map from the given list of fields.
void	FixedSizeListVector.initializeChildrenFromFields(List<Field> children)
void	ListVector.initializeChildrenFromFields(List<Field> children)

org.apache.arrow.vector.complex.implでのFieldの使用

Fieldを返すorg.apache.arrow.vector.complex.implのメソッド

修飾子とタイプ	メソッドと説明
Field	DateDayReaderImpl.getField()
Field	TimeStampMicroWriterImpl.getField()
Field	DateMilliWriterImpl.getField()
Field	DurationReaderImpl.getField()
Field	DecimalReaderImpl.getField()
Field	UInt2WriterImpl.getField()
Field	DecimalWriterImpl.getField()
Field	IntervalDayWriterImpl.getField()
Field	FixedSizeBinaryReaderImpl.getField()
Field	UInt4WriterImpl.getField()
Field	IntReaderImpl.getField()
Field	TimeStampMilliTZWriterImpl.getField()
Field	TinyIntWriterImpl.getField()
Field	UInt4ReaderImpl.getField()
Field	IntervalYearWriterImpl.getField()
Field	SmallIntReaderImpl.getField()
Field	TimeStampSecTZReaderImpl.getField()
Field	TimeNanoReaderImpl.getField()
Field	UInt1WriterImpl.getField()
Field	TimeStampNanoWriterImpl.getField()
Field	UnionReader.getField()
Field	TimeStampMicroReaderImpl.getField()
Field	UInt8ReaderImpl.getField()
Field	NullReader.getField()
Field	Float8WriterImpl.getField()
Field	VarBinaryReaderImpl.getField()
Field	TimeStampMicroTZReaderImpl.getField()
Field	TimeStampNanoReaderImpl.getField()
Field	NullableStructWriter.getField()
Field	FixedSizeBinaryWriterImpl.getField()
Field	TimeStampMilliReaderImpl.getField()
Field	SmallIntWriterImpl.getField()
Field	Float8ReaderImpl.getField()
Field	TimeStampMilliTZReaderImpl.getField()
Field	DateMilliReaderImpl.getField()
Field	TimeMilliReaderImpl.getField()
Field	TimeStampSecTZWriterImpl.getField()
Field	TimeStampNanoTZWriterImpl.getField()
Field	UInt1ReaderImpl.getField()
Field	BitWriterImpl.getField()
Field	TimeStampMilliWriterImpl.getField()
Field	UInt2ReaderImpl.getField()
Field	TimeSecReaderImpl.getField()
Field	IntervalDayReaderImpl.getField()
Field	VarCharReaderImpl.getField()
Field	IntervalYearReaderImpl.getField()
Field	TimeNanoWriterImpl.getField()
Field	TimeMicroReaderImpl.getField()
Field	BigIntReaderImpl.getField()
Field	TimeMilliWriterImpl.getField()
Field	UInt8WriterImpl.getField()
Field	SingleStructWriter.getField()
Field	BigIntWriterImpl.getField()
Field	UnionWriter.getField()
Field	VarCharWriterImpl.getField()
Field	UnionListWriter.getField()
Field	Float4WriterImpl.getField()
Field	TimeStampMicroTZWriterImpl.getField()
Field	DurationWriterImpl.getField()
Field	VarBinaryWriterImpl.getField()
Field	DateDayWriterImpl.getField()
Field	TimeStampNanoTZReaderImpl.getField()
Field	TimeStampSecWriterImpl.getField()
Field	TimeStampSecReaderImpl.getField()
Field	TimeSecWriterImpl.getField()
Field	TimeMicroWriterImpl.getField()
Field	IntWriterImpl.getField()
Field	TinyIntReaderImpl.getField()
Field	BitReaderImpl.getField()
Field	Float4ReaderImpl.getField()
Field	SingleStructReaderImpl.getField()
Field	PromotableWriter.getField()
Field	NullableStructReaderImpl.getField()
Field	UnionListReader.getField()
Field	ComplexWriterImpl.getField()

org.apache.arrow.vector.complex.readerでのFieldの使用

Fieldを返すorg.apache.arrow.vector.complex.readerのメソッド

修飾子とタイプ	メソッドと説明
Field	BaseReader.getField()

org.apache.arrow.vector.complex.writerでのFieldの使用

Fieldを返すorg.apache.arrow.vector.complex.writerのメソッド

修飾子とタイプ	メソッドと説明
Field	BaseWriter.StructWriter.getField()

org.apache.arrow.vector.types.pojoでのFieldの使用

Fieldを返すorg.apache.arrow.vector.types.pojoのメソッド

修飾子とタイプ	メソッドと説明
static Field	Field.convertField(Field field) Constructs a new instance from a flatbuffer representation of the field.
static Field	Schema.findField(List<Field> fields, String name) Search for a field by name in given the list of fields.
Field	Schema.findField(String name) Search for a field by name in this Schema.
static Field	Field.nullable(String name, ArrowType type)
static Field	Field.nullablePrimitive(String name, ArrowType.PrimitiveType type)

Field型の引数を持つ型を返すorg.apache.arrow.vector.types.pojoのメソッド

修飾子とタイプ	メソッドと説明
List<Field>	Field.getChildren()
List<Field>	Schema.getFields()

Field型の型引数を持つorg.apache.arrow.vector.types.pojoのメソッド・パラメータ

修飾子とタイプ	メソッドと説明
static Field	Schema.findField(List<Field> fields, String name) Search for a field by name in given the list of fields.

Field型の型引数を持つorg.apache.arrow.vector.types.pojoのコンストラクタ・パラメータ

コンストラクタと説明
Field(String name, boolean nullable, ArrowType type, DictionaryEncoding dictionary, List<Field> children) 非推奨です。 Use FieldType or static constructor instead.
Field(String name, boolean nullable, ArrowType type, List<Field> children) 非推奨です。 Use FieldType or static constructor instead.
Field(String name, FieldType fieldType, List<Field> children)
Schema(Iterable<Field> fields)
Schema(Iterable<Field> fields, Map<String,String> metadata) Constructor used for JSON deserialization.

org.apache.arrow.vector.utilでのFieldの使用

Fieldを返すorg.apache.arrow.vector.utilのメソッド

修飾子とタイプ	メソッドと説明
static Field	DictionaryUtility.toMemoryFormat(Field field, BufferAllocator allocator, Map<Long,Dictionary> dictionaries) Convert field and child fields that have a dictionary encoding to memory format, so fields have the index type.
static Field	DictionaryUtility.toMessageFormat(Field field, DictionaryProvider provider, Set<Long> dictionaryIdsUsed) Convert field and child fields that have a dictionary encoding to message format, so fields have the dictionary type.

Field型のパラメータを持つorg.apache.arrow.vector.utilのメソッド

修飾子とタイプ	メソッドと説明
static Field	DictionaryUtility.toMemoryFormat(Field field, BufferAllocator allocator, Map<Long,Dictionary> dictionaries) Convert field and child fields that have a dictionary encoding to memory format, so fields have the index type.
static Field	DictionaryUtility.toMessageFormat(Field field, DictionaryProvider provider, Set<Long> dictionaryIdsUsed) Convert field and child fields that have a dictionary encoding to message format, so fields have the dictionary type.