package org.apache.lucene.document; /* * 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. */ import org.apache.lucene.index.FieldInfo; /** * <p> * Field that stores a per-document <code>long</code> value for scoring, * sorting or value retrieval. Here's an example usage: * * <pre class="prettyprint"> * document.add(new NumericDocValuesField(name, 22L)); * </pre> * * <p> * If you also need to store the value, you should add a * separate {@link StoredField} instance. * */ public class NumericDocValuesField extends Field { /** * Type for numeric DocValues. */ public static final FieldType TYPE = new FieldType(); static { TYPE.setDocValueType(FieldInfo.DocValuesType.NUMERIC); TYPE.freeze(); } /** * Creates a new DocValues field with the specified 64-bit long value * @param name field name * @param value 64-bit long value * @throws IllegalArgumentException if the field name is null */ public NumericDocValuesField(String name, long value) { super(name, TYPE); fieldsData = Long.valueOf(value); } }