Uses of Interface
org.apache.drill.exec.vector.accessor.ColumnWriter

Packages that use ColumnWriter

Package	Description
org.apache.drill.exec.physical.resultSet	Provides a second-generation row set (AKA "record batch") writer used by client code to Define the schema of a result set. Write data into the vectors backing a row set.
org.apache.drill.exec.physical.resultSet.impl	Handles the details of the result set loader implementation.
org.apache.drill.exec.physical.rowSet	Provides a set of tools to work with row sets.
org.apache.drill.exec.vector.accessor	Provides a light-weight, simplified set of column readers and writers that can be plugged into a variety of row-level readers and writers.
org.apache.drill.exec.vector.accessor.writer	Implementation of the vector writers.
org.apache.drill.exec.vector.accessor.writer.dummy	This package provides a "dummy" set of writers.

Uses of ColumnWriter in org.apache.drill.exec.physical.resultSet

Subinterfaces of ColumnWriter in org.apache.drill.exec.physical.resultSet

Modifier and Type	Interface	Description
interface	RowSetLoader	Interface for writing values to a row set.

Uses of ColumnWriter in org.apache.drill.exec.physical.resultSet.impl

Classes in org.apache.drill.exec.physical.resultSet.impl that implement ColumnWriter

Modifier and Type	Class	Description
class	RowSetLoaderImpl	Implementation of the row set loader.

Uses of ColumnWriter in org.apache.drill.exec.physical.rowSet

Subinterfaces of ColumnWriter in org.apache.drill.exec.physical.rowSet

Modifier and Type	Interface	Description
interface	RowSetWriter	Interface for writing values to a row set.

Classes in org.apache.drill.exec.physical.rowSet that implement ColumnWriter

Modifier and Type	Class	Description
class	RowSetWriterImpl	Implementation of a row set writer.

Uses of ColumnWriter in org.apache.drill.exec.vector.accessor

Subinterfaces of ColumnWriter in org.apache.drill.exec.vector.accessor

Modifier and Type	Interface	Description
interface	ArrayWriter	Writer for values into an array.
interface	DictWriter	Physically the writer is an array writer with special tuple writer as its element.
interface	ObjectWriter	Represents a column within a tuple.
interface	ScalarWriter	Represents a scalar value: a required column, a nullable column, or one element within an array of scalars.
interface	TupleWriter	Writer for a tuple.
interface	VariantWriter	Writer for a Drill "union vector." The union vector is presented as a writer over a set of variants.

Classes in org.apache.drill.exec.vector.accessor that implement ColumnWriter

Modifier and Type	Class	Description
static class	ColumnAccessors.BigIntColumnWriter
static class	ColumnAccessors.DateColumnWriter
static class	ColumnAccessors.Decimal18ColumnWriter
static class	ColumnAccessors.Decimal28SparseColumnWriter
static class	ColumnAccessors.Decimal38SparseColumnWriter
static class	ColumnAccessors.Decimal9ColumnWriter
static class	ColumnAccessors.Float4ColumnWriter
static class	ColumnAccessors.Float8ColumnWriter
static class	ColumnAccessors.IntColumnWriter
static class	ColumnAccessors.IntervalColumnWriter
static class	ColumnAccessors.IntervalDayColumnWriter
static class	ColumnAccessors.IntervalYearColumnWriter
static class	ColumnAccessors.SmallIntColumnWriter
static class	ColumnAccessors.TimeColumnWriter
static class	ColumnAccessors.TimeStampColumnWriter
static class	ColumnAccessors.TinyIntColumnWriter
static class	ColumnAccessors.UInt1ColumnWriter
static class	ColumnAccessors.UInt2ColumnWriter
static class	ColumnAccessors.UInt4ColumnWriter
static class	ColumnAccessors.UInt8ColumnWriter
static class	ColumnAccessors.Var16CharColumnWriter
static class	ColumnAccessors.VarBinaryColumnWriter
static class	ColumnAccessors.VarCharColumnWriter
static class	ColumnAccessors.VarDecimalColumnWriter

Methods in org.apache.drill.exec.vector.accessor that return ColumnWriter

Modifier and Type	Method	Description
ColumnWriter	ObjectWriter.writer()	Generic version of the above, for dynamic handling of writers.

Uses of ColumnWriter in org.apache.drill.exec.vector.accessor.writer

Subinterfaces of ColumnWriter in org.apache.drill.exec.vector.accessor.writer

Modifier and Type	Interface	Description
interface	OffsetVectorWriter	Interface for specialized operations on an offset vector.

Classes in org.apache.drill.exec.vector.accessor.writer that implement ColumnWriter

Modifier and Type	Class	Description
class	AbstractArrayWriter	Writer for an array-valued column.
static class	AbstractArrayWriter.ArrayObjectWriter	Object representation of an array writer.
static class	AbstractArrayWriter.BaseArrayWriter
class	AbstractFixedWidthWriter	Base class for writers for fixed-width vectors.
static class	AbstractFixedWidthWriter.BaseFixedWidthWriter
static class	AbstractFixedWidthWriter.BaseIntWriter	Base class for writers that use the Java int type as their native type.
class	AbstractObjectWriter	Abstract base class for the object layer in writers.
class	AbstractScalarWriter	Base class for concrete scalar column writers including actual vector writers, and wrappers for nullable types.
class	AbstractScalarWriterImpl	Column writer implementation that acts as the basis for the generated, vector-specific implementations.
static class	AbstractScalarWriterImpl.ScalarObjectWriter	Wraps a scalar writer and its event handler to provide a uniform JSON-like interface for all writer types.
class	AbstractTupleWriter	Implementation for a writer for a tuple (a row or a map.) Provides access to each column using either a name or a numeric index.
static class	AbstractTupleWriter.TupleObjectWriter	Generic object wrapper for the tuple writer.
class	BaseScalarWriter	Column writer implementation that acts as the basis for the generated, vector-specific implementations.
class	BaseVarWidthWriter	Base class for variable-width (VarChar, VarBinary, etc.) writers.
class	BitColumnWriter	Specialized writer for bit columns.
class	DictEntryWriter	Writer for a Dict entry.
static class	DictEntryWriter.DictEntryObjectWriter
class	ListWriterImpl	List writer, which is basically an array writer, with the addition that each list element can be null.
class	MapWriter	Writer for a Drill Map type.
protected static class	MapWriter.ArrayMapWriter	Writer for a an array of maps.
protected static class	MapWriter.DummyArrayMapWriter
protected static class	MapWriter.DummyMapWriter
protected static class	MapWriter.SingleMapWriter	Writer for a single (non-array) map.
class	NullableScalarWriter
class	ObjectArrayWriter	Writer for an array of either a map or another array.
class	ObjectDictWriter	The implementation represents the writer as an array writer with special dict entry writer as its element writer.
static class	ObjectDictWriter.DictObjectWriter
class	OffsetVectorWriterImpl	Specialized column writer for the (hidden) offset vector used with variable-length or repeated vectors.
class	RepeatedListWriter	Implements a writer for a repeated list.
class	ScalarArrayWriter	Writer for a column that holds an array of scalars.
class	UnionWriterImpl	Writer to a union vector.
static class	UnionWriterImpl.VariantObjectWriter

Methods in org.apache.drill.exec.vector.accessor.writer that return ColumnWriter

Modifier and Type	Method	Description
ColumnWriter	AbstractArrayWriter.ArrayObjectWriter.writer()
ColumnWriter	AbstractScalarWriterImpl.ScalarObjectWriter.writer()
ColumnWriter	AbstractTupleWriter.TupleObjectWriter.writer()
ColumnWriter	UnionWriterImpl.VariantObjectWriter.writer()

Uses of ColumnWriter in org.apache.drill.exec.vector.accessor.writer.dummy

Classes in org.apache.drill.exec.vector.accessor.writer.dummy that implement ColumnWriter

Modifier and Type	Class	Description
class	DummyArrayWriter	Dummy scalar array writer that allows a client to write values into the array, but discards all of them.
static class	DummyArrayWriter.DummyOffsetVectorWriter
class	DummyDictWriter
class	DummyScalarWriter	Represents a non-projected column.