uk.ac.ic.doc.automed.qproc.opti
Interface QueryOptimisationProvider

All Known Implementing Classes:

StandardOptimisationProvider

public interface QueryOptimisationProvider

QueryOptimisationProvider.java Defines a set of mandatory behaviours of a query optimiser
Query optimiser (logical and physical) classes must implement this interface.

Author:

Duc M Le dmle@doc.ic.ac.uk Created on 01 August 2006 Department of Computing, Imperial College

Method Summary

java.lang.String	getName() Return a unique name of a provider.
void	optimise(ASG g, QueryProcessorConfiguration qpc) Optimise an IQL query based on a given configuration

Method Detail

getName

java.lang.String getName()

Return a unique name of a provider. This name is used as a key in a Map of provider objects

optimise

void optimise(ASG g,
              QueryProcessorConfiguration qpc)
              throws QueryOptimisationException

Optimise an IQL query based on a given configuration

Parameters:

g - an ASG object of an IQL query

Throws:

QueryOptimisationException