package org.apache.lucene.facet.search.cache;
import java.io.IOException;
import java.util.HashMap;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.facet.index.params.CategoryListParams;
import org.apache.lucene.facet.index.params.FacetIndexingParams;
import org.apache.lucene.facet.taxonomy.TaxonomyReader;
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Cache for {@link CategoryListData}, per {@link CategoryListParams}.
*
* @lucene.experimental
*/
public class CategoryListCache {
private HashMap<CategoryListParams, CategoryListData>
cldMap = new HashMap<CategoryListParams,CategoryListData>();
/**
* Fetch the cached {@link CategoryListData} for a given {@link CategoryListParams}.
*/
public CategoryListData get(CategoryListParams clp) {
return cldMap.get(clp);
}
/**
* Register a pre-computed {@link CategoryListData}.
*/
public void register(CategoryListParams clp, CategoryListData clData) {
cldMap.put(clp,clData);
}
/**
* Load and register {@link CategoryListData}.
*/
public void loadAndRegister(CategoryListParams clp,
IndexReader reader, TaxonomyReader taxo, FacetIndexingParams iparams) throws IOException {
CategoryListData clData = new CategoryListData(reader, taxo, iparams, clp);
register(clp,clData);
}
}