| /* |
| * 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.apache.druid.segment; |
| |
| import javax.annotation.Nullable; |
| |
| /** |
| * This interface is convenient for implementation of "double-sourcing" {@link ColumnValueSelector}s, it provides |
| * default implementations for all {@link ColumnValueSelector}'s methods except {@link #getDouble()}. |
| * |
| * This interface should appear ONLY in "implements" clause or anonymous class creation, but NOT in "user" code, where |
| * {@link BaseDoubleColumnValueSelector} must be used instead. |
| */ |
| public interface DoubleColumnSelector extends ColumnValueSelector<Double> |
| { |
| /** |
| * @deprecated This method is marked as deprecated in DoubleColumnSelector to minimize the probability of accidental |
| * calling. "Polymorphism" of DoubleColumnSelector should be used only when operating on {@link ColumnValueSelector} |
| * objects. |
| */ |
| @Deprecated |
| @Override |
| default float getFloat() |
| { |
| return (float) getDouble(); |
| } |
| |
| /** |
| * @deprecated This method is marked as deprecated in DoubleColumnSelector to minimize the probability of accidental |
| * calling. "Polymorphism" of DoubleColumnSelector should be used only when operating on {@link ColumnValueSelector} |
| * objects. |
| */ |
| @Deprecated |
| @Override |
| default long getLong() |
| { |
| return (long) getDouble(); |
| } |
| |
| /** |
| * @deprecated This method is marked as deprecated in DoubleColumnSelector to minimize the probability of accidental |
| * calling. "Polymorphism" of DoubleColumnSelector should be used only when operating on {@link ColumnValueSelector} |
| * objects. |
| */ |
| @Deprecated |
| @Override |
| @Nullable |
| default Double getObject() |
| { |
| if (isNull()) { |
| return null; |
| } |
| return getDouble(); |
| } |
| |
| /** |
| * @deprecated This method is marked as deprecated in DoubleColumnSelector to minimize the probability of accidental |
| * calling. "Polymorphism" of DoubleColumnSelector should be used only when operating on {@link ColumnValueSelector} |
| * objects. |
| */ |
| @Deprecated |
| @Override |
| default Class<Double> classOfObject() |
| { |
| return Double.class; |
| } |
| } |