de.grogra.rgg.model
Class VVProducer

java.lang.Object
  de.grogra.rgg.model.VVProducer

All Implemented Interfaces:

Producer

public class VVProducer
extends java.lang.Object
implements Producer

Author:

Ole Kniemeyer

Nested Class Summary

class	VVProducer.AddNeighbor
class	VVProducer.End
class	VVProducer.InsertReplaceDelete
class	VVProducer.InsertReplaceSplitSet
static class	VVProducer.NotGRSVertex
class	VVProducer.Split

Field Summary

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

DOUBLE_ARROW, EXECUTION_ARROW, SIMPLE_ARROW

Method Summary

static VVProducer.NotGRSVertex	operator$com(GRSVertex v)
VVProducer.InsertReplaceSplitSet	operator$space(GRSVertex v)
VVProducer.InsertReplaceDelete	operator$space(VVProducer.NotGRSVertex v)
VVProducer	producer$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$endExecution(boolean applied) This method is invoked by the XL run-time system in order to notify the producer about the end of the execution of a right-hand side.
Graph	producer$getGraph() Returns the graph for which this producer constructs the right-hand side structur.
void	producer$visitEdge(EdgePattern pattern)

Methods inherited from class java.lang.Object

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

Method Detail

operator$com

public static VVProducer.NotGRSVertex operator$com(GRSVertex v)

operator$space

public VVProducer.InsertReplaceSplitSet operator$space(GRSVertex v)

operator$space

public VVProducer.InsertReplaceDelete operator$space(VVProducer.NotGRSVertex v)

producer$begin

public VVProducer producer$begin()

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

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$end

public void producer$end()

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

Parameters:

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

producer$getGraph

public Graph producer$getGraph()

Description copied from interface: Producer

Returns the graph for which this producer constructs the right-hand side structur.

Specified by:

producer$getGraph in interface Producer

Returns:

the graph on which this producer operates

producer$visitEdge

public void producer$visitEdge(EdgePattern pattern)

Specified by:

producer$visitEdge in interface Producer