org.trypticon.luceneupgrader.lucene6.internal.lucene.search.spans.SpanQuery Maven / Gradle / Ivy
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* 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.
*/
package org.trypticon.luceneupgrader.lucene6.internal.lucene.search.spans;
import java.io.IOException;
import java.util.Collection;
import java.util.Map;
import java.util.TreeMap;
import org.trypticon.luceneupgrader.lucene6.internal.lucene.index.Term;
import org.trypticon.luceneupgrader.lucene6.internal.lucene.index.TermContext;
import org.trypticon.luceneupgrader.lucene6.internal.lucene.search.IndexSearcher;
import org.trypticon.luceneupgrader.lucene6.internal.lucene.search.Query;
/** Base class for span-based queries. */
public abstract class SpanQuery extends Query {
/**
* Returns the name of the field matched by this query.
*/
public abstract String getField();
@Override
public abstract SpanWeight createWeight(IndexSearcher searcher, boolean needsScores) throws IOException;
/**
* Build a map of terms to termcontexts, for use in constructing SpanWeights
* @lucene.internal
*/
public static Map getTermContexts(SpanWeight... weights) {
Map terms = new TreeMap<>();
for (SpanWeight w : weights) {
w.extractTermContexts(terms);
}
return terms;
}
/**
* Build a map of terms to termcontexts, for use in constructing SpanWeights
* @lucene.internal
*/
public static Map getTermContexts(Collection weights) {
Map terms = new TreeMap<>();
for (SpanWeight w : weights) {
w.extractTermContexts(terms);
}
return terms;
}
}