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

Interface MutableFilterContext

All Superinterfaces:

FilterContext

All Known Implementing Classes:

VectorizedRowBatch

public interface MutableFilterContext
extends 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
default FilterContext	immutable() Get the immutable version of the current FilterContext.
void	setFilterContext(boolean isSelectedInUse, int[] selected, int selectedSize) Set context with the given values by reference.
void	setSelected(int[] selectedArray) Set the array of the rows that pass the filter by reference.
void	setSelectedInUse(boolean selectedInUse) Set the selectedInUse boolean showing if the filter is applied.
void	setSelectedSize(int selectedSize) Set the number of the rows that pass the filter.
int[]	updateSelected(int minCapacity) Get an array for selected that is expected to be modified.
boolean	validateSelected() Validate method checking if existing selected array contains accepted values.

Methods inherited from interface org.apache.hadoop.hive.ql.io.filter.FilterContext

getSelected, getSelectedSize, isSelectedInUse, reset

Method Detail

setFilterContext

void setFilterContext(boolean isSelectedInUse,
                      int[] selected,
                      int selectedSize)

Set context with the given values by reference.

Parameters:

isSelectedInUse - if the filter is applied

selected - an array of the selected rows

selectedSize - the number of the selected rows

validateSelected

boolean validateSelected()

Validate method checking if existing selected array contains accepted values. Values should be in order and without duplicates i.e [1,1,1] is illegal

Returns:

true if the selected array is valid

updateSelected

int[] updateSelected(int minCapacity)

Get an array for selected that is expected to be modified. If it is too small or unset, allocates one. This method never returns null!

Parameters:

minCapacity -

Returns:

the current selected array to be modified

immutable

default FilterContext immutable()

Get the immutable version of the current FilterContext.

Returns:

immutable FilterContext instance

setSelectedInUse

void setSelectedInUse(boolean selectedInUse)

Set the selectedInUse boolean showing if the filter is applied.

Parameters:

selectedInUse -

setSelected

void setSelected(int[] selectedArray)

Set the array of the rows that pass the filter by reference.

Parameters:

selectedArray -

setSelectedSize

void setSelectedSize(int selectedSize)

Set the number of the rows that pass the filter.

Parameters:

selectedSize -