com.google.uzaygezen.core

Interface RegionInspector<F,V>

Type Parameters:

T - filter type

All Known Implementing Classes:

MapRegionInspector, SimpleRegionInspector

public interface RegionInspector<F,V>

Assessor of spatial relationships.

Author:

Daniel Aioanei

Method Summary

Methods

Modifier and Type	Method and Description
Assessment<F,V>	assess(Pow2LengthBitSetRange indexRange, List<Pow2LengthBitSetRange> orthotope) Assesses the spatial relationship of an orthotope with respect to the query region.
int	getNumberOfDimensions()

Method Detail

getNumberOfDimensions

int getNumberOfDimensions()

assess

Assessment<F,V> assess(Pow2LengthBitSetRange indexRange,
                     List<Pow2LengthBitSetRange> orthotope)

Assesses the spatial relationship of an orthotope with respect to the query region. The space filling query framework doesn't know any particulars of the query region. Instead it will try and find out about it piece by piece by calling this method. The method can approximate the query region by making it look larger, to minimise the amount of work needed to build the index query corresponding to the query region in question. For instance an implementation could use a histogram to better estimate the size of the gaps, or approximate the surface of the query region with hypercubes that have on each dimension the lowest k bits going from all zeros to all ones.

When the framework calls this method it is guaranteed that the size of the index range is equal to the content of the orthotope.

Parameters:

indexRange - space filling curve index range

orthotope - orthotope specification. The caller might reuse this parameter so no reference should be kept to it by any concrete region inspector.

Returns:

the immutable assessment result