Module org.apache.lucene.codecs

Package org.apache.lucene.codecs.simpletext

Class SimpleTextBKDReader.SimpleTextPointTree

java.lang.Object

org.apache.lucene.codecs.simpletext.SimpleTextBKDReader.SimpleTextPointTree

All Implemented Interfaces:

Cloneable, PointValues.PointTree

Enclosing class:

SimpleTextBKDReader

private class SimpleTextBKDReader.SimpleTextPointTree
extends Object
implements PointValues.PointTree

Field Summary

Fields

Modifier and Type	Field	Description
private final IndexInput	in
(package private) int	level
private final byte[]	maxPackedValue
private final byte[]	minPackedValue
(package private) int	nodeID
(package private) final int	rootNode
(package private) final int[]	scratchDocIDs
(package private) final byte[]	scratchPackedValue
private final int[]	splitDims
private final byte[][]	splitDimValueStack

Constructor Summary

Constructors

Modifier	Constructor	Description
private	SimpleTextPointTree(IndexInput in, int nodeID, int level, byte[] minPackedValue, byte[] maxPackedValue)

Method Summary

Modifier and Type	Method	Description
void	addAll(PointValues.IntersectVisitor visitor, boolean grown)
private int	balanceTreeNodePosition(int minNode, int maxNode, int node, int position, int level)
PointValues.PointTree	clone()	Clone, the current node becomes the root of the new tree.
byte[]	getMaxPackedValue()	Return the maximum packed value of the current node.
byte[]	getMinPackedValue()	Return the minimum packed value of the current node.
private int	getNumLeavesSlow(int node)
private int	getTreeDepth(int numLeaves)
boolean	isLeafNode()
boolean	moveToChild()	Move to the first child node and return true upon success.
boolean	moveToParent()	Move to the parent node and return true upon success.
boolean	moveToSibling()	Move to the next sibling node and return true upon success.
private int	parseInt(BytesRefBuilder scratch, BytesRef prefix)
private void	pop(boolean isLeft)
private void	pushLeft()
private void	pushRight()
(package private) int	readDocIDs(IndexInput in, long blockFP, int[] docIDs)
private void	readLine(IndexInput in, BytesRefBuilder scratch)
long	size()	Return the number of points below the current node.
private long	sizeFromBalancedTree(int leftMostLeafNode, int rightMostLeafNode)
private boolean	startsWith(BytesRefBuilder scratch, BytesRef prefix)
private String	stripPrefix(BytesRefBuilder scratch, BytesRef prefix)
void	visitDocIDs(PointValues.IntersectVisitor visitor)	Visit all the docs below the current node.
void	visitDocValues(PointValues.IntersectVisitor visitor)	Visit all the docs and values below the current node.

Methods inherited from class java.lang.Object

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

Field Details

scratchDocIDs

final int[] scratchDocIDs

scratchPackedValue

final byte[] scratchPackedValue

nodeID

int nodeID

level

int level

rootNode

final int rootNode

minPackedValue

private final byte[] minPackedValue

maxPackedValue

private final byte[] maxPackedValue

splitDimValueStack

private final byte[][] splitDimValueStack

splitDims

private final int[] splitDims

in

private final IndexInput in

Constructor Details

SimpleTextPointTree

private SimpleTextPointTree(IndexInput in,
 int nodeID,
 int level,
 byte[] minPackedValue,
 byte[] maxPackedValue)

Method Details

getTreeDepth

private int getTreeDepth(int numLeaves)

clone

public PointValues.PointTree clone()

Description copied from interface: PointValues.PointTree

Clone, the current node becomes the root of the new tree.

Specified by:

clone in interface PointValues.PointTree

Overrides:

clone in class Object

moveToChild

public boolean moveToChild()

Description copied from interface: PointValues.PointTree

Move to the first child node and return true upon success. Returns false for leaf nodes and true otherwise.

Specified by:

moveToChild in interface PointValues.PointTree

pushLeft

private void pushLeft()

moveToSibling

public boolean moveToSibling()

Description copied from interface: PointValues.PointTree

Move to the next sibling node and return true upon success. Returns false if the current node has no more siblings.

Specified by:

moveToSibling in interface PointValues.PointTree

pushRight

private void pushRight()

moveToParent

public boolean moveToParent()

Description copied from interface: PointValues.PointTree

Move to the parent node and return true upon success. Returns false for the root node and true otherwise.

Specified by:

moveToParent in interface PointValues.PointTree

pop

private void pop(boolean isLeft)

getMinPackedValue

public byte[] getMinPackedValue()

Description copied from interface: PointValues.PointTree

Return the minimum packed value of the current node.

Specified by:

getMinPackedValue in interface PointValues.PointTree

getMaxPackedValue

public byte[] getMaxPackedValue()

Description copied from interface: PointValues.PointTree

Return the maximum packed value of the current node.

Specified by:

getMaxPackedValue in interface PointValues.PointTree

size

public long size()

Description copied from interface: PointValues.PointTree

Return the number of points below the current node.

Specified by:

size in interface PointValues.PointTree

sizeFromBalancedTree

private long sizeFromBalancedTree(int leftMostLeafNode,
 int rightMostLeafNode)

balanceTreeNodePosition

private int balanceTreeNodePosition(int minNode,
 int maxNode,
 int node,
 int position,
 int level)

getNumLeavesSlow

private int getNumLeavesSlow(int node)

visitDocIDs

public void visitDocIDs(PointValues.IntersectVisitor visitor)
                 throws IOException

Description copied from interface: PointValues.PointTree

Visit all the docs below the current node.

Specified by:

visitDocIDs in interface PointValues.PointTree

Throws:

IOException

addAll

public void addAll(PointValues.IntersectVisitor visitor,
 boolean grown)
            throws IOException

Throws:

IOException

visitDocValues

public void visitDocValues(PointValues.IntersectVisitor visitor)
                    throws IOException

Description copied from interface: PointValues.PointTree

Visit all the docs and values below the current node.

Specified by:

visitDocValues in interface PointValues.PointTree

Throws:

IOException

readDocIDs

int readDocIDs(IndexInput in,
 long blockFP,
 int[] docIDs)
        throws IOException

Throws:

IOException

isLeafNode

public boolean isLeafNode()

parseInt

private int parseInt(BytesRefBuilder scratch,
 BytesRef prefix)

stripPrefix

private String stripPrefix(BytesRefBuilder scratch,
 BytesRef prefix)

startsWith

private boolean startsWith(BytesRefBuilder scratch,
 BytesRef prefix)

readLine

private void readLine(IndexInput in,
 BytesRefBuilder scratch)
               throws IOException

Throws:

IOException