com.facetmap.simple
Class SimpleFacetSpace

java.lang.Object
  com.facetmap.simple.SimpleFacetSpace

All Implemented Interfaces:

FacetSpace

public class SimpleFacetSpace

extends java.lang.Object

implements FacetSpace

A Vector-based FacetSpace that only supports Taxonomy facets. This object changes on the fly whenever the addFacet() method is used. Selection refs generated before such a change may not be valid after the change.

Field Summary

protected java.util.Hashtable	facetHash Indexes facets by name.
protected java.util.Vector	facets Indexes facets by number.
protected int	version

Constructor Summary

SimpleFacetSpace()
Create an empty but valid SimpleFacetSpace.

Method Summary

void	addFacet(Facet facet) Appends the given Taxonomy to this FacetSpace.
Facet	createFacet(java.lang.String id, java.lang.String title, Heading root) Creates a new Facet structure suitable for adding to this FacetSpace.
Spectrum	createSpectrum(java.lang.String id, java.lang.String title, java.lang.String rootHeadingTitle, int min, int max) Creates a new Spectrum facet structure suitable for adding to this FacetSpace.
Taxonomy	createTaxonomy(java.lang.String id, java.lang.String title, java.lang.String rootHeadingTitle) Creates a new Taxonomy facet structure suitable for adding to this FacetSpace.
Facet	getFacet(int index) Returns the Facet at the given index.
Facet	getFacet(java.lang.String id) Returns the Facet with the given identifier.
int	getFacetCount() Returns the number of dimensions in this FacetSpace.
Spectrum	getSpectrum(java.lang.String id) Returns the Spectrum with the given identifier.
protected Taxonomy	getTaxonomy(int index)
Taxonomy	getTaxonomy(java.lang.String id) Returns the Taxonomy with the given identifier.
java.lang.String	getVersion() Returns zero -- version is not supported by this implementation.
int	indexOf(Facet t) Returns the index number of the dimension the Facet occupies.

Methods inherited from class java.lang.Object

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

Field Detail

facets

protected java.util.Vector facets

Indexes facets by number.

facetHash

protected java.util.Hashtable facetHash

Indexes facets by name. If a taxonomy has no name, the name is its index number in the Vector.

version

protected int version

Constructor Detail

SimpleFacetSpace

public SimpleFacetSpace()

Create an empty but valid SimpleFacetSpace.

Method Detail

getFacetCount

public int getFacetCount()

Description copied from interface: FacetSpace

Returns the number of dimensions in this FacetSpace.

Specified by:

getFacetCount in interface FacetSpace

getFacet

public Facet getFacet(int index)

Description copied from interface: FacetSpace

Returns the Facet at the given index.

Specified by:

getFacet in interface FacetSpace

getFacet

public Facet getFacet(java.lang.String id)
               throws UnknownReferenceException

Description copied from interface: FacetSpace

Returns the Facet with the given identifier.

Specified by:

getFacet in interface FacetSpace

Throws:

UnknownReferenceException

getTaxonomy

public Taxonomy getTaxonomy(java.lang.String id)

Description copied from interface: FacetSpace

Returns the Taxonomy with the given identifier.

Specified by:

getTaxonomy in interface FacetSpace

getSpectrum

public Spectrum getSpectrum(java.lang.String id)

Description copied from interface: FacetSpace

Returns the Spectrum with the given identifier.

Specified by:

getSpectrum in interface FacetSpace

addFacet

public void addFacet(Facet facet)

Description copied from interface: FacetSpace

Appends the given Taxonomy to this FacetSpace. Currently, structures may not be inserted into a given index position.

Specified by:

addFacet in interface FacetSpace

createTaxonomy

public Taxonomy createTaxonomy(java.lang.String id,
                               java.lang.String title,
                               java.lang.String rootHeadingTitle)

Description copied from interface: FacetSpace

Creates a new Taxonomy facet structure suitable for adding to this FacetSpace.

Specified by:

createTaxonomy in interface FacetSpace

createSpectrum

public Spectrum createSpectrum(java.lang.String id,
                               java.lang.String title,
                               java.lang.String rootHeadingTitle,
                               int min,
                               int max)
                        throws DataException

Description copied from interface: FacetSpace

Creates a new Spectrum facet structure suitable for adding to this FacetSpace.

Specified by:

createSpectrum in interface FacetSpace

Throws:

DataException

createFacet

public Facet createFacet(java.lang.String id,
                         java.lang.String title,
                         Heading root)
                  throws DataException

Description copied from interface: FacetSpace

Creates a new Facet structure suitable for adding to this FacetSpace. The new Facet should be of the same type as the Facet that generated the root Heading. This method is NOT typesafe and will throw an exception at runtime if the Heading is badly typed. Use with discretion.

Specified by:

createFacet in interface FacetSpace

Throws:

DataException - if the root Heading is of a type not supported by the implementation.

getVersion

public java.lang.String getVersion()

Returns zero -- version is not supported by this implementation.

Specified by:

getVersion in interface FacetSpace

getTaxonomy

protected Taxonomy getTaxonomy(int index)

indexOf

public int indexOf(Facet t)

Description copied from interface: FacetSpace

Returns the index number of the dimension the Facet occupies. getFacet(indexOf(f)) should return f.

Specified by:

indexOf in interface FacetSpace