1 package org.apache.lucene.search.vectorhighlight;
4 * Licensed to the Apache Software Foundation (ASF) under one or more
5 * contributor license agreements. See the NOTICE file distributed with
6 * this work for additional information regarding copyright ownership.
7 * The ASF licenses this file to You under the Apache License, Version 2.0
8 * (the "License"); you may not use this file except in compliance with
9 * the License. You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
20 import java.util.ArrayList;
21 import java.util.Iterator;
22 import java.util.List;
24 import org.apache.lucene.search.vectorhighlight.FieldFragList.WeightedFragInfo;
25 import org.apache.lucene.search.vectorhighlight.FieldPhraseList.WeightedPhraseInfo;
28 * An implementation class of {@link FragListBuilder} that generates one {@link WeightedFragInfo} object.
29 * Typical use case of this class is that you can get an entire field contents
30 * by using both of this class and {@link SimpleFragmentsBuilder}.<br/>
32 * FastVectorHighlighter h = new FastVectorHighlighter( true, true,
33 * new SingleFragListBuilder(), new SimpleFragmentsBuilder() );
36 public class SingleFragListBuilder implements FragListBuilder {
38 public FieldFragList createFieldFragList(FieldPhraseList fieldPhraseList,
41 FieldFragList ffl = new FieldFragList( fragCharSize );
43 List<WeightedPhraseInfo> wpil = new ArrayList<WeightedPhraseInfo>();
44 Iterator<WeightedPhraseInfo> ite = fieldPhraseList.phraseList.iterator();
45 WeightedPhraseInfo phraseInfo = null;
47 if( !ite.hasNext() ) break;
48 phraseInfo = ite.next();
49 if( phraseInfo == null ) break;
51 wpil.add( phraseInfo );
54 ffl.add( 0, Integer.MAX_VALUE, wpil );