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

Packages that use ValueWriter

Package	Description
org.apache.drill.exec.physical.impl.scan.convert	Standard type conversion tools for the case in which the input types are the standard Java types already supported by the ValuesWriter interface.
org.apache.drill.exec.physical.impl.scan.v3	Provides the "version 3" scan framework (which can also be thought of as EVF version 2).
org.apache.drill.exec.record
org.apache.drill.exec.store.avro
org.apache.drill.exec.store.easy.text.reader	Version 3 of the text reader.
org.apache.drill.exec.store.hdf5.writers
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 ValueWriter in org.apache.drill.exec.physical.impl.scan.convert

Classes in org.apache.drill.exec.physical.impl.scan.convert that implement ValueWriter

Modifier and Type	Class and Description
class	AbstractConvertFromString Abstract class for string-to-something conversions.
class	ConvertBooleanToString
class	ConvertDateToString
class	ConvertDecimalToString
class	ConvertDoubleToDecimal
class	ConvertDoubleToString
class	ConvertFloatToDecimal
class	ConvertIntervalToString
class	ConvertIntToDecimal
class	ConvertIntToString
class	ConvertLongToDecimal
class	ConvertLongToString
class	ConvertStringToBoolean Convert a VARCHAR column to an BIT column following the Java rules for parsing Boolean values, then using 1 if the boolean is true, 0 if false.
class	ConvertStringToDate Convert a VARCHAR column to an DATE column following the Java rules for parsing a date time, optionally using the formatter provided in the column schema.
class	ConvertStringToDecimal Convert a VARCHAR column to an decimal column following the Java rules for parsing integers (i.e.
class	ConvertStringToDouble Convert a VARCHAR column to a DOUBLE column following the Java rules for parsing doubles (i.e.
class	ConvertStringToInt Convert a VARCHAR column to an INT column following the Java rules for parsing integers (i.e.
class	ConvertStringToInterval Convert a VARCHAR column to an INTERVAL column following the Java rules for parsing a period.
class	ConvertStringToLong Convert a VARCHAR column to an BIGINT column following the Java rules for parsing longs (i.e.
class	ConvertStringToTime Convert a VARCHAR column to an TIME column following the Java rules for parsing a date time, optionally using the formatter provided in the column schema.
class	ConvertStringToTimeStamp Convert a VARCHAR column to an TIMESTAMP column following the Java rules for parsing a date time, optionally using the formatter provided in the column schema.
class	ConvertTimeStampToString
class	ConvertTimeToString
class	DirectConverter Base class for Java type-based conversion.

Methods in org.apache.drill.exec.physical.impl.scan.convert that return ValueWriter

Modifier and Type	Method and Description
ValueWriter	StandardConversions.converterFor(ScalarWriter scalarWriter, ColumnMetadata inputSchema)
ValueWriter	StandardConversions.converterFor(ScalarWriter scalarWriter, TypeProtos.MinorType inputType)
ValueWriter	StandardConversions.converterFor(ScalarWriter scalarWriter, TypeProtos.MinorType inputType, Map<String,String> columnProps) Create a direct column converter, if necessary, for the given input type and optional properties.

Uses of ValueWriter in org.apache.drill.exec.physical.impl.scan.v3

Methods in org.apache.drill.exec.physical.impl.scan.v3 that return ValueWriter

Modifier and Type	Method and Description
ValueWriter	FixedReceiver.scalar(int index)
ValueWriter	FixedReceiver.scalar(String name)

Uses of ValueWriter in org.apache.drill.exec.record

Methods in org.apache.drill.exec.record with parameters of type ValueWriter

Modifier and Type	Method and Description
ColumnConverter.ScalarColumnConverter	ColumnConverterFactory.buildScalar(ColumnMetadata readerSchema, ValueWriter writer)

Uses of ValueWriter in org.apache.drill.exec.store.avro

Methods in org.apache.drill.exec.store.avro with parameters of type ValueWriter

Modifier and Type	Method and Description
ColumnConverter.ScalarColumnConverter	AvroColumnConverterFactory.buildScalar(ColumnMetadata readerSchema, ValueWriter writer)

Uses of ValueWriter in org.apache.drill.exec.store.easy.text.reader

Methods in org.apache.drill.exec.store.easy.text.reader that return ValueWriter

Modifier and Type	Method and Description
protected abstract ValueWriter	BaseFieldOutput.columnWriter()

Uses of ValueWriter in org.apache.drill.exec.store.hdf5.writers

Methods in org.apache.drill.exec.store.hdf5.writers that return ValueWriter

Modifier and Type	Method and Description
ValueWriter	WriterSpec.makeWriter(String name, TypeProtos.MinorType type, TypeProtos.DataMode mode)

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

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

Modifier and Type	Interface and Description
interface	ScalarWriter Represents a scalar value: a required column, a nullable column, or one element within an array of scalars.

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

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

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

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

Modifier and Type	Class and Description
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	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.
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	NullableScalarWriter
class	OffsetVectorWriterImpl Specialized column writer for the (hidden) offset vector used with variable-length or repeated vectors.

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

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

Modifier and Type	Class and Description
static class	DummyArrayWriter.DummyOffsetVectorWriter
class	DummyScalarWriter Represents a non-projected column.