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 java.lang.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.

Field Summary

Fields

Modifier and Type	Field and Description
protected int	defaultSize
protected java.lang.String	shapeField

Constructor Summary

Constructors

Constructor and Description
ShapeFieldCacheProvider(java.lang.String shapeField, int defaultSize)

Method Summary

Modifier and Type	Method and 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 java.lang.String shapeField

Constructor Detail

ShapeFieldCacheProvider

public ShapeFieldCacheProvider(java.lang.String shapeField,
                               int defaultSize)

Method Detail

readShape

protected abstract T readShape(BytesRef term)

getCache

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

Throws:

java.io.IOException