org.apache.drill.exec.vector.accessor

Class ColumnAccessors.Var16CharColumnWriter

java.lang.Object

org.apache.drill.exec.vector.accessor.writer.AbstractScalarWriter

org.apache.drill.exec.vector.accessor.writer.AbstractScalarWriterImpl

org.apache.drill.exec.vector.accessor.writer.BaseScalarWriter

org.apache.drill.exec.vector.accessor.writer.BaseVarWidthWriter

org.apache.drill.exec.vector.accessor.ColumnAccessors.Var16CharColumnWriter

All Implemented Interfaces:

ColumnWriter, ScalarWriter, ValueWriter, WriterEvents, WriterPosition

Enclosing class:

ColumnAccessors

public static class ColumnAccessors.Var16CharColumnWriter
extends BaseVarWidthWriter

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.drill.exec.vector.accessor.writer.AbstractScalarWriterImpl

AbstractScalarWriterImpl.ScalarObjectWriter

Nested classes/interfaces inherited from interface org.apache.drill.exec.vector.accessor.writer.WriterEvents

WriterEvents.ColumnWriterListener, WriterEvents.State

Field Summary

Fields inherited from class org.apache.drill.exec.vector.accessor.writer.BaseVarWidthWriter

offsetsWriter

Fields inherited from class org.apache.drill.exec.vector.accessor.writer.BaseScalarWriter

capacity, drillBuf, emptyValue, listener, MIN_BUFFER_SIZE

Fields inherited from class org.apache.drill.exec.vector.accessor.writer.AbstractScalarWriterImpl

schema, vectorIndex

Constructor Summary

Constructors

Constructor and Description
Var16CharColumnWriter(ValueVector vector)

Method Summary

Modifier and Type	Method and Description
void	appendBytes(byte[] value, int len)
void	copy(ColumnReader from) Copy a single value from the given reader, which must be of the same type as this writer.
void	setBytes(byte[] value, int len)
void	setDefaultValue(Object value) Set the default value to be used to fill empties for this writer.
void	setString(String value)
void	setValue(Object value) Write value to a vector as a Java object of the "native" type for the column.
ValueType	valueType() Describe the type of the value.
BaseDataValueVector	vector()

Methods inherited from class org.apache.drill.exec.vector.accessor.writer.BaseVarWidthWriter

bindIndex, dump, endWrite, lastWriteIndex, postRollover, prepareAppend, prepareWrite, preRollover, restartRow, setBuffer, skipNulls, startRow, startWrite

Methods inherited from class org.apache.drill.exec.vector.accessor.writer.BaseScalarWriter

bindListener, bindSchema, canExpand, nullable, overflowed, realloc, setBoolean, setDate, setDecimal, setDouble, setFloat, setInt, setLong, setNull, setPeriod, setTime, setTimestamp

Methods inherited from class org.apache.drill.exec.vector.accessor.writer.AbstractScalarWriterImpl

endArrayValue, isProjected, rowStartIndex, saveRow, schema, type, writeIndex

Methods inherited from class org.apache.drill.exec.vector.accessor.writer.AbstractScalarWriter

conversionError, extendedType, setObject, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Var16CharColumnWriter

public Var16CharColumnWriter(ValueVector vector)

Method Detail

vector

public BaseDataValueVector vector()

Specified by:

vector in class AbstractScalarWriterImpl

valueType

public ValueType valueType()

Description copied from interface: ScalarWriter

Describe the type of the value. This is a compression of the value vector type: it describes which method will return the vector value.

Returns:

the value type which indicates which get method is valid for the column

setBytes

public final void setBytes(byte[] value,
                           int len)

Specified by:

setBytes in interface ValueWriter

Overrides:

setBytes in class BaseScalarWriter

appendBytes

public final void appendBytes(byte[] value,
                              int len)

Specified by:

appendBytes in interface ValueWriter

Overrides:

appendBytes in class BaseScalarWriter

setString

public final void setString(String value)

Specified by:

setString in interface ValueWriter

Overrides:

setString in class BaseScalarWriter

setValue

public final void setValue(Object value)

Description copied from interface: ValueWriter

Write value to a vector as a Java object of the "native" type for the column. This form is available only on scalar writers. The object must be of the form for the primary write method above.

Primarily to be used when the code already knows the object type.

Parameters:

value - a value that matches the primary setter above, or null to set the column to null

See Also:

for the generic case

setDefaultValue

public final void setDefaultValue(Object value)

Description copied from interface: ScalarWriter

Set the default value to be used to fill empties for this writer. Only valid for required writers: null writers set this is-set bit to 0 and set the data value to 0.

Parameters:

value - the value to set. Cannot be null. The type of the value must match that legal for ValueWriter.setValue(Object)

copy

public final void copy(ColumnReader from)

Description copied from interface: ColumnWriter

Copy a single value from the given reader, which must be of the same type as this writer.

Parameters:

from - reader to provide the data