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

Class SortedSegmentedIndexCursor

java.lang.Object

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

All Implemented Interfaces:

GridCursor<IndexRow>

public class SortedSegmentedIndexCursor
extends Object
implements GridCursor<IndexRow>

Single cursor over multiple segments. The next value is chosen with the index row comparator.

Constructor Summary

Constructors

Constructor	Description
SortedSegmentedIndexCursor(GridCursor<IndexRow>[] cursors, SortedIndexDefinition idxDef)

Method Summary

Modifier and Type	Method	Description
protected Queue<GridCursor<IndexRow>>	cursorsQueue(GridCursor<IndexRow>[] cursors)
IndexRow	get()	Gets element at current position.
boolean	next()	Attempt to move cursor position forward.

Methods inherited from class java.lang.Object

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

Constructor Detail

SortedSegmentedIndexCursor

public SortedSegmentedIndexCursor(GridCursor<IndexRow>[] cursors,
                                  SortedIndexDefinition idxDef)
                           throws IgniteCheckedException

Throws:

IgniteCheckedException

Method Detail

next

public boolean next()
             throws IgniteCheckedException

Attempt to move cursor position forward.

Specified by:

next in interface GridCursor<IndexRow>

Returns:

true If we were able to move position of cursor forward.

Throws:

IgniteCheckedException - If failed.

get

public IndexRow get()
             throws IgniteCheckedException

Gets element at current position. Must be called only after successful GridCursor.next() call.

Specified by:

get in interface GridCursor<IndexRow>

Returns:

Element at current position.

Throws:

IgniteCheckedException - If failed.

cursorsQueue

protected Queue<GridCursor<IndexRow>> cursorsQueue(GridCursor<IndexRow>[] cursors)
                                            throws IgniteCheckedException

Throws:

IgniteCheckedException