org.apache.ignite.internal.cache.query.index.sorted

Interface SortedSegmentedIndex

All Superinterfaces:

Index

All Known Subinterfaces:

InlineIndex

All Known Implementing Classes:

ClientInlineIndex, InlineIndexImpl

public interface SortedSegmentedIndex
extends Index

Interface for sorted and segmented Ignite indexes.

Method Summary

Modifier and Type	Method and Description
long	count(int segment) Counts index rows in specified tree segment.
long	count(int segment, IndexQueryContext qryCtx) Counts index rows in specified tree segment with cache filter.
GridCursor<IndexRow>	find(@Nullable IndexRow lower, @Nullable IndexRow upper, boolean lowerIncl, boolean upperIncl, IndexQueryContext qryCtx) Finds index rows by specified range in all tree segments with cache filtering.
GridCursor<IndexRow>	find(@Nullable IndexRow lower, @Nullable IndexRow upper, boolean lowerIncl, boolean upperIncl, int segment, IndexQueryContext qryCtx) Finds index rows by specified range in specifed tree segment with cache filtering.
GridCursor<IndexRow>	findFirst(int segment, IndexQueryContext qryCtx) Finds first index row for specified tree segment and cache filter.
GridCursor<IndexRow>	findFirstOrLast(IndexQueryContext qryCtx, boolean first) Takes only one first or last index record.
GridCursor<IndexRow>	findLast(int segment, IndexQueryContext qryCtx) Finds last index row for specified tree segment and cache filter.
int	segmentsCount() Returns amount of index tree segments.
long	totalCount() Counts index rows for all segments.

Methods inherited from interface org.apache.ignite.internal.cache.query.index.Index

canHandle, destroy, id, name, onUpdate, unwrap

Method Detail

find

GridCursor<IndexRow> find(@Nullable
                          @Nullable IndexRow lower,
                          @Nullable
                          @Nullable IndexRow upper,
                          boolean lowerIncl,
                          boolean upperIncl,
                          int segment,
                          IndexQueryContext qryCtx)
                   throws IgniteCheckedException

Finds index rows by specified range in specifed tree segment with cache filtering. Range can be bound or unbound.

Parameters:

lower - Nullable lower bound.

upper - Nullable upper bound.

lowerIncl - true for inclusive lower bound, otherwise false.

upperIncl - true for inclusive upper bound, otherwise false.

segment - Number of tree segment to find.

qryCtx - External index query context.

Returns:

Cursor of found index rows.

Throws:

IgniteCheckedException

find

GridCursor<IndexRow> find(@Nullable
                          @Nullable IndexRow lower,
                          @Nullable
                          @Nullable IndexRow upper,
                          boolean lowerIncl,
                          boolean upperIncl,
                          IndexQueryContext qryCtx)
                   throws IgniteCheckedException

Finds index rows by specified range in all tree segments with cache filtering. Range can be bound or unbound.

Parameters:

lower - Nullable lower bound.

upper - Nullable upper bound.

lowerIncl - true for inclusive lower bound, otherwise false.

upperIncl - true for inclusive upper bound, otherwise false.

qryCtx - External index query context.

Returns:

Cursor of found index rows.

Throws:

IgniteCheckedException

findFirst

GridCursor<IndexRow> findFirst(int segment,
                               IndexQueryContext qryCtx)
                        throws IgniteCheckedException

Finds first index row for specified tree segment and cache filter.

Parameters:

segment - Number of tree segment to find.

qryCtx - External index qyery context.

Returns:

Cursor of found index rows.

Throws:

IgniteCheckedException

findLast

GridCursor<IndexRow> findLast(int segment,
                              IndexQueryContext qryCtx)
                       throws IgniteCheckedException

Finds last index row for specified tree segment and cache filter.

Parameters:

segment - Number of tree segment to find.

qryCtx - External index qyery context.

Returns:

Cursor of found index rows.

Throws:

IgniteCheckedException

findFirstOrLast

GridCursor<IndexRow> findFirstOrLast(IndexQueryContext qryCtx,
                                     boolean first)
                              throws IgniteCheckedException

Takes only one first or last index record.

Parameters:

qryCtx - External index qyery context.

first - True to take first index value. False to take last index value.

Throws:

IgniteCheckedException

count

long count(int segment)
    throws IgniteCheckedException

Counts index rows in specified tree segment.

Parameters:

segment - Number of tree segment to find.

Returns:

count of index rows for specified segment.

Throws:

IgniteCheckedException

count

long count(int segment,
           IndexQueryContext qryCtx)
    throws IgniteCheckedException

Counts index rows in specified tree segment with cache filter.

Parameters:

segment - Number of tree segment to find.

qryCtx - Index query context.

Returns:

count of index rows for specified segment.

Throws:

IgniteCheckedException

totalCount

long totalCount()
         throws IgniteCheckedException

Counts index rows for all segments.

Returns:

total count of index rows.

Throws:

IgniteCheckedException

segmentsCount

int segmentsCount()

Returns amount of index tree segments.

Returns:

amount of index tree segments.