Module xl.impl

Package de.grogra.xl.impl.simple

Class SimpleProducer

java.lang.Object

de.grogra.xl.impl.base.Producer

de.grogra.xl.impl.simple.SimpleProducer

All Implemented Interfaces:

Producer, Executor

public class SimpleProducer
extends Producer

Field Summary

Fields inherited from class de.grogra.xl.impl.base.Producer

addNodeQueue, deleteEdgeQueue, deleteNodeQueue, depth, firstPart, prevNode, restoreContextFlag

Fields inherited from interface de.grogra.xl.query.Producer

DOUBLE_ARROW, EXECUTION_ARROW, SIMPLE_ARROW

Constructor Summary

Constructors

Constructor	Description
SimpleProducer(QueryState match)

Method Summary

Modifier and Type	Method	Description
void	applyDerivation()
SimpleProducer	operator$arrow(Node node, int edge)
SimpleProducer	operator$space(Node node)
SimpleProducer	producer$begin()
boolean	producer$beginExecution(int arrow)	This method is invoked by the XL run-time system in order to notify the producer about the beginning of a right-hand side (i.e., a match for the left-hand side has been found, and the right-hand side is executed).
void	producer$end()
void	producer$endExecution(boolean applied)	This method is invoked by the XL run-time system in order to notify the producer about the end of the execution of a right-hand side.
Node	producer$getRoot()
SimpleProducer	producer$pop(Object oldProducer)
SimpleProducer	producer$push()
SimpleProducer	producer$separate()

Methods inherited from class de.grogra.xl.impl.base.Producer

addEdgeImpl, addNodeImpl, addToClique, connect, consume, copyIncoming, copyOutgoing, cut, execute, getArrow, getInConnectionEdges, getOutConnectionEdges, getPreviousNode, getQueryState, getQueue, getQueues, interpretive, isUseOperators, moveIncoming, moveOutgoing, nodeUsed, popImpl, processRule, producer$cliqueBegin, producer$cliqueEnd, producer$getGraph, producer$visitEdge, pushImpl, restoreContextImpl, separateImpl, setConnectionEdges, setInConnectionEdges, setOutConnectionEdges, useOperators

Methods inherited from class java.lang.Object

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

Constructor Details

SimpleProducer

public SimpleProducer(QueryState match)

Method Details

producer$getRoot

public Node producer$getRoot()

operator$space

public SimpleProducer operator$space(Node node)

producer$push

public SimpleProducer producer$push()

producer$separate

public SimpleProducer producer$separate()

producer$begin

public SimpleProducer producer$begin()

producer$end

public void producer$end()

producer$pop

public SimpleProducer producer$pop(Object oldProducer)

operator$arrow

public SimpleProducer operator$arrow(Node node,
 int edge)

applyDerivation

public void applyDerivation()

producer$beginExecution

public boolean producer$beginExecution(int arrow)

Description copied from interface: Producer

This method is invoked by the XL run-time system in order to notify the producer about the beginning of a right-hand side (i.e., a match for the left-hand side has been found, and the right-hand side is executed).

Specified by:

producer$beginExecution in interface Producer

Overrides:

producer$beginExecution in class Producer

Parameters:

arrow - the type of rule arrow, one of Producer.SIMPLE_ARROW, Producer.DOUBLE_ARROW, Producer.EXECUTION_ARROW

Returns:

true if the right-hand side shall be executed, false if its execution shall be skipped

producer$endExecution

public void producer$endExecution(boolean applied)

Description copied from interface: Producer

This method is invoked by the XL run-time system in order to notify the producer about the end of the execution of a right-hand side.

Specified by:

producer$endExecution in interface Producer

Overrides:

producer$endExecution in class Producer

Parameters:

applied - return value of invocation of Producer.producer$beginExecution(int)