Package org.apache.druid.query.rowsandcols.column.accessor

Class DoubleColumnAccessorBase

java.lang.Object

org.apache.druid.query.rowsandcols.column.accessor.DoubleColumnAccessorBase

All Implemented Interfaces:

ColumnAccessor

public abstract class DoubleColumnAccessorBase
extends Object
implements ColumnAccessor

Constructor Summary

Constructors

Constructor	Description
DoubleColumnAccessorBase()

Method Summary

Modifier and Type	Method	Description
int	compareRows(int lhsRowNum, int rhsRowNum)	Compares two rows using a comparison that follows the same semantics as Comparator.compare(T, T)
float	getFloat(int rowNum)	Get the primitive float representation of the row.
int	getInt(int rowNum)	Get the primitive int representation of the row.
long	getLong(int rowNum)	Get the primitive long representation of the row.
Object	getObject(int rowNum)	Get the Object representation of the row.
ColumnType	getType()	Get the type of the Column

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.druid.query.rowsandcols.column.ColumnAccessor

getDouble, isNull, numRows

Constructor Detail

DoubleColumnAccessorBase

public DoubleColumnAccessorBase()

Method Detail

getType

public ColumnType getType()

Description copied from interface: ColumnAccessor

Get the type of the Column

Specified by:

getType in interface ColumnAccessor

Returns:

the type of the Column

getObject

@Nullable
public Object getObject(int rowNum)

Description copied from interface: ColumnAccessor

Get the Object representation of the row.

Specified by:

getObject in interface ColumnAccessor

Parameters:

rowNum - the row id, 0-indexed

Returns:

the Object representation of the row. Returns null If ColumnAccessor.isNull(int) is true.

getFloat

public float getFloat(int rowNum)

Description copied from interface: ColumnAccessor

Get the primitive float representation of the row.

Specified by:

getFloat in interface ColumnAccessor

Parameters:

rowNum - the row id, 0-indexed

Returns:

the primitive float representation of the row. Returns 0F If ColumnAccessor.isNull(int) is true.

getLong

public long getLong(int rowNum)

Description copied from interface: ColumnAccessor

Get the primitive long representation of the row.

Specified by:

getLong in interface ColumnAccessor

Parameters:

rowNum - the row id, 0-indexed

Returns:

the primitive long representation of the row. Returns 0L If ColumnAccessor.isNull(int) is true.

getInt

public int getInt(int rowNum)

Description copied from interface: ColumnAccessor

Get the primitive int representation of the row.

Specified by:

getInt in interface ColumnAccessor

Parameters:

rowNum - the row id, 0-indexed

Returns:

the primitive int representation of the row. Returns 0 If ColumnAccessor.isNull(int) is true.

compareRows

public int compareRows(int lhsRowNum,
                       int rhsRowNum)

Description copied from interface: ColumnAccessor

Compares two rows using a comparison that follows the same semantics as Comparator.compare(T, T)

This is not comparing the row Ids, but the values referred to by the row ids.

Specified by:

compareRows in interface ColumnAccessor

Parameters:

lhsRowNum - the row id of the left-hand-side of the comparison

rhsRowNum - the row id of the right-hand-side of the comparison

Returns:

the result of the comparison of the two rows