org.deri.cqels.engine

Class OpRouterBase

java.lang.Object

org.deri.cqels.engine.OpRouterBase

All Implemented Interfaces:

OpRouter

Direct Known Subclasses:

BDBGraphPatternRouter, IndexedTripleRouter, OpRouter1, OpRouter2, ThroughRouter

public abstract class OpRouterBase
extends java.lang.Object
implements OpRouter

This class implements the basic behaviors of a router

Author:

Danh Le Phuoc, Chan Le Van

See Also:

OpRouter

Constructor Summary

Constructors

Constructor and Description
OpRouterBase(ExecContext context, com.hp.hpl.jena.sparql.algebra.Op op)

Method Summary

Methods

Modifier and Type	Method and Description
void	_route(Mapping mapping)
MappingIterator	getBuff() Each specific router contains a data buffer in the form of mappings This method will get that data buffer out
int	getId() Each specific router has a unique Id This method will get that Id out
com.hp.hpl.jena.sparql.algebra.Op	getOp() Each specific router contains an operator what is parsed from the query This method will get that op out
void	route(Mapping mapping) This method route the specified mapping to higher node in the router-node tree
MappingIterator	searchBuff4Match(Mapping mapping) This method tries to search in the data mapping buffer whether there is any mapping that matches the specified mapping.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.deri.cqels.engine.OpRouter

visit

Constructor Detail

OpRouterBase

public OpRouterBase(ExecContext context,
            com.hp.hpl.jena.sparql.algebra.Op op)

Method Detail

getOp

public com.hp.hpl.jena.sparql.algebra.Op getOp()

Description copied from interface: OpRouter

Each specific router contains an operator what is parsed from the query This method will get that op out

Specified by:

getOp in interface OpRouter

getId

public int getId()

Description copied from interface: OpRouter

Each specific router has a unique Id This method will get that Id out

Specified by:

getId in interface OpRouter

_route

public void _route(Mapping mapping)

route

public void route(Mapping mapping)

Description copied from interface: OpRouter

This method route the specified mapping to higher node in the router-node tree

Specified by:

route in interface OpRouter

Parameters:

mapping - the specified mapping

searchBuff4Match

public MappingIterator searchBuff4Match(Mapping mapping)

Description copied from interface: OpRouter

This method tries to search in the data mapping buffer whether there is any mapping that matches the specified mapping.

Specified by:

searchBuff4Match in interface OpRouter

Parameters:

mapping - the specified mapping

Returns:

a mapping iterator of matched mappings in buffer

getBuff

public MappingIterator getBuff()

Description copied from interface: OpRouter

Each specific router contains a data buffer in the form of mappings This method will get that data buffer out

Specified by:

getBuff in interface OpRouter