Module rgg

Package de.grogra.rgg.model

Class VVProducer

java.lang.Object

de.grogra.rgg.model.VVProducer

All Implemented Interfaces:

Producer

public class VVProducer
extends Object
implements Producer

Author:

Ole Kniemeyer

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
final class	VVProducer.AddNeighbor
class	VVProducer.End
final class	VVProducer.InsertReplaceDelete
final class	VVProducer.InsertReplaceSplitSet
static final class	VVProducer.NotGRSVertex
final class	VVProducer.Split

Field Summary

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

DOUBLE_ARROW, EXECUTION_ARROW, SIMPLE_ARROW

Method Summary

Modifier and Type	Method	Description
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 Details

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$end

public void producer$end()

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$visitEdge

public void producer$visitEdge(EdgePattern pattern)

Specified by:

producer$visitEdge in interface Producer

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