Package org.apache.lucene.document

Class ShapeDocValuesField

java.lang.Object

org.apache.lucene.document.Field

org.apache.lucene.document.ShapeDocValuesField

All Implemented Interfaces:

IndexableField

Direct Known Subclasses:

LatLonShapeDocValuesField, XYShapeDocValuesField

public abstract class ShapeDocValuesField
extends Field

A doc values field for LatLonShape and XYShape that uses ShapeDocValues as the underlying binary doc value format.

Note that this class cannot be instantiated directly due to different encodings XYEncodingUtils and GeoEncodingUtils

Concrete Implementations include: LatLonShapeDocValuesField and XYShapeDocValuesField

WARNING: This API is experimental and might change in incompatible ways in the next release.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.document.Field

Field.Store

Field Summary

Fields

Modifier and Type	Field	Description
protected static FieldType	FIELD_TYPE	FieldType for ShapeDocValues field
protected org.apache.lucene.document.ShapeDocValues	shapeDocValues	the binary doc value format for this field

Fields inherited from class org.apache.lucene.document.Field

fieldsData, name, tokenStream, type

Method Summary

Modifier and Type	Method	Description
protected abstract double	decodeX(int encoded)	decodes x coordinates from encoded space
protected abstract double	decodeY(int encoded)	decodes y coordinates from encoded space
IndexableFieldType	fieldType()	Gets the IndexableFieldType for this ShapeDocValue field
abstract Geometry	getBoundingBox()	retrieves the bounding box for the geometry
abstract Geometry	getCentroid()	retrieves the centroid location for the geometry
ShapeField.DecodedTriangle.TYPE	getHighestDimensionType()	Retrieves the highest dimensional type (POINT, LINE, TRIANGLE) for computing the geometry(s) centroid
String	name()	The name of the field
static Query	newGeometryQuery(String field, ShapeField.QueryRelation relation, Object... geometries)	Creates a geometry query for shape docvalues
int	numberOfTerms()	Returns the number of terms (tessellated triangles) for this shape
String	stringValue()	Currently there is no string representation for the ShapeDocValueField
TokenStream	tokenStream(Analyzer analyzer, TokenStream reuse)	TokenStreams are not yet supported

Methods inherited from class org.apache.lucene.document.Field

binaryValue, getCharSequenceValue, numericValue, readerValue, setBytesValue, setBytesValue, setByteValue, setDoubleValue, setFloatValue, setIntValue, setLongValue, setReaderValue, setShortValue, setStringValue, setTokenStream, tokenStreamValue, toString

Methods inherited from class java.lang.Object

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

Field Detail

shapeDocValues

protected final org.apache.lucene.document.ShapeDocValues shapeDocValues

the binary doc value format for this field

FIELD_TYPE

protected static final FieldType FIELD_TYPE

FieldType for ShapeDocValues field

Method Detail

name

public String name()

The name of the field

Specified by:

name in interface IndexableField

Overrides:

name in class Field

fieldType

public IndexableFieldType fieldType()

Gets the IndexableFieldType for this ShapeDocValue field

Specified by:

fieldType in interface IndexableField

Overrides:

fieldType in class Field

stringValue

public String stringValue()

Currently there is no string representation for the ShapeDocValueField

Specified by:

stringValue in interface IndexableField

Overrides:

stringValue in class Field

tokenStream

public TokenStream tokenStream(Analyzer analyzer,
                               TokenStream reuse)

TokenStreams are not yet supported

Specified by:

tokenStream in interface IndexableField

Overrides:

tokenStream in class Field

Parameters:

analyzer - Analyzer that should be used to create the TokenStreams from

reuse - TokenStream for a previous instance of this field name. This allows custom field types (like StringField and NumericField) that do not use the analyzer to still have good performance. Note: the passed-in type may be inappropriate, for example if you mix up different types of Fields for the same field name. So it's the responsibility of the implementation to check.

Returns:

TokenStream value for indexing the document. Should always return a non-null value if the field is to be indexed

numberOfTerms

public int numberOfTerms()

Returns the number of terms (tessellated triangles) for this shape

newGeometryQuery

public static Query newGeometryQuery(String field,
                                     ShapeField.QueryRelation relation,
                                     Object... geometries)

Creates a geometry query for shape docvalues

getCentroid

public abstract Geometry getCentroid()

retrieves the centroid location for the geometry

getBoundingBox

public abstract Geometry getBoundingBox()

retrieves the bounding box for the geometry

getHighestDimensionType

public ShapeField.DecodedTriangle.TYPE getHighestDimensionType()

Retrieves the highest dimensional type (POINT, LINE, TRIANGLE) for computing the geometry(s) centroid

decodeX

protected abstract double decodeX(int encoded)

decodes x coordinates from encoded space

decodeY

protected abstract double decodeY(int encoded)

decodes y coordinates from encoded space