Package org.drools.core.phreak

Class RuntimeSegmentUtilities

java.lang.Object

org.drools.core.phreak.RuntimeSegmentUtilities

public class RuntimeSegmentUtilities
extends Object

Constructor Summary

Constructors

Constructor	Description
RuntimeSegmentUtilities()

Method Summary

Modifier and Type	Method	Description
static SegmentMemory	createChildSegment(ReteEvaluator reteEvaluator, LeftTupleNode node)
static void	createChildSegments(ReteEvaluator reteEvaluator, SegmentMemory smem, LeftTupleSinkPropagator sinkProp)
static SegmentMemory	getOrCreateSegmentMemory(LeftTupleNode node, ReteEvaluator reteEvaluator)	Initialises the NodeSegment memory for all nodes in the segment.
static SegmentMemory	getQuerySegmentMemory(ReteEvaluator reteEvaluator, LeftTupleSource segmentRoot, QueryElementNode queryNode)
static PathMemory	initializePathMemory(ReteEvaluator reteEvaluator, PathEndNode pathEndNode)
static void	initializePathMemory(ReteEvaluator reteEvaluator, PathEndNode pathEndNode, PathMemory pmem)
static long	nextNodePosMask(long nodePosMask)
static void	updateRiaAndTerminalMemory(SegmentMemory smem, SegmentMemory.SegmentPrototype proto, ReteEvaluator reteEvaluator)	This adds the segment memory to the terminal node or ria node's list of memories.

Methods inherited from class java.lang.Object

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

Constructor Detail

RuntimeSegmentUtilities

public RuntimeSegmentUtilities()

Method Detail

getOrCreateSegmentMemory

public static SegmentMemory getOrCreateSegmentMemory(LeftTupleNode node,
                                                     ReteEvaluator reteEvaluator)

Initialises the NodeSegment memory for all nodes in the segment.

nextNodePosMask

public static long nextNodePosMask(long nodePosMask)

getQuerySegmentMemory

public static SegmentMemory getQuerySegmentMemory(ReteEvaluator reteEvaluator,
                                                  LeftTupleSource segmentRoot,
                                                  QueryElementNode queryNode)

createChildSegments

public static void createChildSegments(ReteEvaluator reteEvaluator,
                                       SegmentMemory smem,
                                       LeftTupleSinkPropagator sinkProp)

createChildSegment

public static SegmentMemory createChildSegment(ReteEvaluator reteEvaluator,
                                               LeftTupleNode node)

updateRiaAndTerminalMemory

public static void updateRiaAndTerminalMemory(SegmentMemory smem,
                                              SegmentMemory.SegmentPrototype proto,
                                              ReteEvaluator reteEvaluator)

This adds the segment memory to the terminal node or ria node's list of memories. In the case of the terminal node this allows it to know that all segments from the tip to root are linked. In the case of the ria node its all the segments up to the start of the subnetwork. This is because the rianode only cares if all of it's segments are linked, then it sets the bit of node it is the right input for.

initializePathMemory

public static PathMemory initializePathMemory(ReteEvaluator reteEvaluator,
                                              PathEndNode pathEndNode)

initializePathMemory

public static void initializePathMemory(ReteEvaluator reteEvaluator,
                                        PathEndNode pathEndNode,
                                        PathMemory pmem)