Package org.apache.lucene.spatial.util

Class ShapeFieldCacheProvider<T extends org.locationtech.spatial4j.shape.Shape>

java.lang.Object

org.apache.lucene.spatial.util.ShapeFieldCacheProvider<T>

Direct Known Subclasses:

PointPrefixTreeFieldCacheProvider

public abstract class ShapeFieldCacheProvider<T extends org.locationtech.spatial4j.shape.Shape>
extends Object

Provides access to a ShapeFieldCache for a given LeafReader.

If a Cache does not exist for the Reader, then it is built by iterating over the all terms for a given field, reconstructing the Shape from them, and adding them to the Cache.

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

Field Summary

Fields

Modifier and Type	Field	Description
protected int	defaultSize
protected String	shapeField

Constructor Summary

Constructors

Constructor	Description
ShapeFieldCacheProvider(String shapeField, int defaultSize)

Method Summary

Modifier and Type	Method	Description
ShapeFieldCache<T>	getCache(LeafReader reader)
protected abstract T	readShape(BytesRef term)

Methods inherited from class java.lang.Object

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

Field Detail

defaultSize

protected final int defaultSize

shapeField

protected final String shapeField

Constructor Detail

ShapeFieldCacheProvider

public ShapeFieldCacheProvider(String shapeField,
                               int defaultSize)

Method Detail

readShape

protected abstract T readShape(BytesRef term)

getCache

public ShapeFieldCache<T> getCache(LeafReader reader)
                            throws IOException

Throws:

IOException