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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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package org.apache.solr.handler.component;
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import org.apache.solr.common.util.NamedList;
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* StatsValue defines the interface for the collection of statistical values about fields and facets.
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public interface StatsValues {
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* Accumulate the values based on those in the given NamedList
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* @param stv NamedList whose values will be used to accumulate the current values
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void accumulate(NamedList stv);
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* Accumulate the values based on the given value
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* @param value Value to use to accumulate the current values
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void accumulate(String value);
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* Accumulate the values based on the given value
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* @param value Value to use to accumulate the current values
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* @param count number of times to accumulate this value
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void accumulate(String value, int count);
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* Updates the statistics when a document is missing a value
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* Updates the statistics when multiple documents are missing a value
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* @param count number of times to count a missing value
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void addMissing(int count);
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* Adds the facet statistics for the facet with the given name
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* @param facetName Name of the facet
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* @param facetValues Facet statistics on a per facet value basis
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void addFacet(String facetName, Map<String, StatsValues> facetValues);
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* Translates the values into a NamedList representation
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* @return NamedList representation of the current values
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NamedList<?> getStatsValues();