Module org.apache.lucene.memory

Package org.apache.lucene.index.memory

Class MemoryIndex.SlicedIntBlockPool

java.lang.Object

org.apache.lucene.util.IntBlockPool

org.apache.lucene.index.memory.MemoryIndex.SlicedIntBlockPool

Enclosing class:

MemoryIndex

static class MemoryIndex.SlicedIntBlockPool
extends IntBlockPool

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	MemoryIndex.SlicedIntBlockPool.SliceReader	A MemoryIndex.SlicedIntBlockPool.SliceReader that can read int slices written by a MemoryIndex.SlicedIntBlockPool.SliceWriter
(package private) static class	MemoryIndex.SlicedIntBlockPool.SliceWriter	A MemoryIndex.SlicedIntBlockPool.SliceWriter that allows to write multiple integer slices into a given IntBlockPool.

Nested classes/interfaces inherited from class org.apache.lucene.util.IntBlockPool

IntBlockPool.Allocator, IntBlockPool.DirectAllocator

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	FIRST_LEVEL_SIZE	The first level size for new slices
private static final int[]	LEVEL_SIZE_ARRAY	An array holding the level sizes for int slices.
private static final int[]	NEXT_LEVEL_ARRAY	An array holding the offset into the LEVEL_SIZE_ARRAY to quickly navigate to the next slice level.

Fields inherited from class org.apache.lucene.util.IntBlockPool

buffer, buffers, INT_BLOCK_MASK, INT_BLOCK_SHIFT, INT_BLOCK_SIZE, intOffset, intUpto

Constructor Summary

Constructors

Constructor	Description
SlicedIntBlockPool(IntBlockPool.Allocator allocator)

Method Summary

Modifier and Type	Method	Description
private int	allocSlice(int[] slice, int sliceOffset)	Allocates a new slice from the given offset
private static boolean	assertSliceBuffer(int[] buffer)	For slices, buffers must be filled with zeros, so that we can find a slice's end based on a non-zero final value.
private int	newSlice(int size)	Creates a new int slice with the given starting size and returns the slices offset in the pool.

Methods inherited from class org.apache.lucene.util.IntBlockPool

nextBuffer, reset

Methods inherited from class java.lang.Object

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

Field Details

NEXT_LEVEL_ARRAY

private static final int[] NEXT_LEVEL_ARRAY

An array holding the offset into the LEVEL_SIZE_ARRAY to quickly navigate to the next slice level.

LEVEL_SIZE_ARRAY

private static final int[] LEVEL_SIZE_ARRAY

An array holding the level sizes for int slices.

FIRST_LEVEL_SIZE

private static final int FIRST_LEVEL_SIZE

The first level size for new slices

Constructor Details

SlicedIntBlockPool

SlicedIntBlockPool(IntBlockPool.Allocator allocator)

Method Details

assertSliceBuffer

private static boolean assertSliceBuffer(int[] buffer)

For slices, buffers must be filled with zeros, so that we can find a slice's end based on a non-zero final value.

newSlice

private int newSlice(int size)

Creates a new int slice with the given starting size and returns the slices offset in the pool.

See Also:

• MemoryIndex.SlicedIntBlockPool.SliceReader

allocSlice

private int allocSlice(int[] slice,
 int sliceOffset)

Allocates a new slice from the given offset