org.apache.hadoop.hive.ql.io.filter

Interface FilterContext

All Known Subinterfaces:

MutableFilterContext

All Known Implementing Classes:

VectorizedRowBatch

public interface FilterContext

A representation of a Filter applied on the rows of a VectorizedRowBatch VectorizedRowBatch. Each FilterContext consists of an array with the ids (int) of rows that are selected by the filter, an integer representing the number of selected rows, and a boolean showing if the filter actually selected any rows.

Method Summary

Modifier and Type	Method and Description
int[]	getSelected() Return an int array with the rows that pass the filter.
int	getSelectedSize() Return the number of rows that pass the filter.
boolean	isSelectedInUse() Is the filter applied?
void	reset() Reset FilterContext variables.

Method Detail

reset

void reset()

Reset FilterContext variables.

isSelectedInUse

boolean isSelectedInUse()

Is the filter applied?

Returns:

true if the filter is actually applied

getSelected

int[] getSelected()

Return an int array with the rows that pass the filter. Do not modify the array returned!

Returns:

int array

getSelectedSize

int getSelectedSize()

Return the number of rows that pass the filter.

Returns:

an int