org.drools.phreak
Class SegmentUtilities

java.lang.Object
  org.drools.phreak.SegmentUtilities

public class SegmentUtilities
extends Object

Constructor Summary

SegmentUtilities()

Method Summary

static void	createChildSegments(InternalWorkingMemory wm, SegmentMemory smem, LeftTupleSinkPropagator sinkProp)
static SegmentMemory	createSegmentMemory(LeftTupleSource tupleSource, InternalWorkingMemory wm) Initialises the NodeSegment memory for all nodes in the segment.
static boolean	inSubNetwork(RightInputAdapterNode riaNode, LeftTupleSource leftTupleSource) Is the LeftTupleSource a node in the sub network for the RightInputAdapterNode To be in the same network, it must be a node is after the two output of the parent and before the rianode.
static boolean	parentInSameSegment(LeftTupleSource lt)
static void	updateRiaAndTerminalMemory(int pos, LeftTupleSource lt, LeftTupleSource originalLt, SegmentMemory smem, InternalWorkingMemory wm) 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

SegmentUtilities

public SegmentUtilities()

Method Detail

createSegmentMemory

public static SegmentMemory createSegmentMemory(LeftTupleSource tupleSource,
                                                InternalWorkingMemory wm)

Initialises the NodeSegment memory for all nodes in the segment.

Parameters:

wm -

createChildSegments

public static void createChildSegments(InternalWorkingMemory wm,
                                       SegmentMemory smem,
                                       LeftTupleSinkPropagator sinkProp)

inSubNetwork

public static boolean inSubNetwork(RightInputAdapterNode riaNode,
                                   LeftTupleSource leftTupleSource)

Is the LeftTupleSource a node in the sub network for the RightInputAdapterNode To be in the same network, it must be a node is after the two output of the parent and before the rianode.

Parameters:

riaNode -

leftTupleSource -

Returns:

updateRiaAndTerminalMemory

public static void updateRiaAndTerminalMemory(int pos,
                                              LeftTupleSource lt,
                                              LeftTupleSource originalLt,
                                              SegmentMemory smem,
                                              InternalWorkingMemory wm)

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.

Parameters:

pos -

lt -

originalLt -

smem -

wm -

parentInSameSegment

public static boolean parentInSameSegment(LeftTupleSource lt)