Class CategoryListData
- java.lang.Object
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- org.apache.lucene.facet.search.cache.CategoryListData
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public class CategoryListData extends Object
Category list data maintained in RAM.Speeds up facets accumulation when more RAM is available.
Note that this will consume more memory: one int (4 bytes) for each category of each document.
Note: at the moment this class is insensitive to updates of the index, and, in particular, does not make use of Lucene's ability to refresh a single segment.
See
CategoryListCache.register(CategoryListParams, CategoryListData)
andCategoryListCache.loadAndRegister(CategoryListParams, IndexReader, TaxonomyReader, FacetIndexingParams)
.- WARNING: This API is experimental and might change in incompatible ways in the next release.
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Constructor Summary
Constructors Modifier Constructor Description protected
CategoryListData()
Empty constructor for extensions with modified computation of the data.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description CategoryListIterator
iterator(int partition)
Iterate on the category list data for the specified partition.
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Method Detail
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iterator
public CategoryListIterator iterator(int partition) throws IOException
Iterate on the category list data for the specified partition.- Throws:
IOException
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