| 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.AtomicReader; // javadocs |
| |
| /** |
| * Syntactic sugar for encoding doubles as NumericDocValues |
| * via {@link Double#doubleToRawLongBits(double)}. |
| * <p> |
| * Per-document double values can be retrieved via |
| * {@link AtomicReader#getNumericDocValues(String)}. |
| * <p> |
| * <b>NOTE</b>: In most all cases this will be rather inefficient, |
| * requiring eight bytes per document. Consider encoding double |
| * values yourself with only as much precision as you require. |
| */ |
| public class DoubleDocValuesField extends NumericDocValuesField { |
| |
| /** |
| * Creates a new DocValues field with the specified 64-bit double value |
| * @param name field name |
| * @param value 64-bit double value |
| * @throws IllegalArgumentException if the field name is null |
| */ |
| public DoubleDocValuesField(String name, double value) { |
| super(name, Double.doubleToRawLongBits(value)); |
| } |
| |
| @Override |
| public void setDoubleValue(double value) { |
| super.setLongValue(Double.doubleToRawLongBits(value)); |
| } |
| |
| @Override |
| public void setLongValue(long value) { |
| throw new IllegalArgumentException("cannot change value type from Double to Long"); |
| } |
| } |