org.apache.drill.exec.physical.impl.scan.convert

Class AbstractConvertFromString

java.lang.Object

org.apache.drill.exec.physical.impl.scan.convert.ColumnConverter

org.apache.drill.exec.physical.impl.scan.convert.DirectConverter

org.apache.drill.exec.physical.impl.scan.convert.AbstractConvertFromString

All Implemented Interfaces:

ValueWriter

Direct Known Subclasses:

ConvertStringToBoolean, ConvertStringToDate, ConvertStringToDecimal, ConvertStringToDouble, ConvertStringToInt, ConvertStringToInterval, ConvertStringToLong, ConvertStringToTime, ConvertStringToTimeStamp

public abstract class AbstractConvertFromString
extends DirectConverter

Abstract class for string-to-something conversions. Handles the multiple ways that strings can be set.

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.slf4j.Logger	logger
protected Function<String,String>	prepare

Fields inherited from class org.apache.drill.exec.physical.impl.scan.convert.ColumnConverter

baseWriter

Constructor Summary

Constructors

Constructor and Description
AbstractConvertFromString(ScalarWriter baseWriter)
AbstractConvertFromString(ScalarWriter baseWriter, Map<String,String> properties)

Method Summary

Modifier and Type	Method and Description
void	setBytes(byte[] bytes, int length)
void	setValue(Object value) Write value to a vector as a Java object of the "native" type for the column.

Methods inherited from class org.apache.drill.exec.physical.impl.scan.convert.DirectConverter

appendBytes, setBoolean, setDate, setDecimal, setDouble, setFloat, setInt, setLong, setNull, setPeriod, setString, setTime, setTimestamp

Methods inherited from class org.apache.drill.exec.physical.impl.scan.convert.ColumnConverter

conversionError, schema, writer

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected static final org.slf4j.Logger logger

prepare

protected final Function<String,String> prepare

Constructor Detail

AbstractConvertFromString

public AbstractConvertFromString(ScalarWriter baseWriter)

AbstractConvertFromString

public AbstractConvertFromString(ScalarWriter baseWriter,
                                 Map<String,String> properties)

Method Detail

setValue

public 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.

Specified by:

setValue in interface ValueWriter

Overrides:

setValue in class DirectConverter

Parameters:

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

See Also:

for the generic case

setBytes

public void setBytes(byte[] bytes,
                     int length)

Specified by:

setBytes in interface ValueWriter

Overrides:

setBytes in class DirectConverter