| /* |
| * 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.maven.api; |
| |
| import org.apache.maven.api.annotations.Experimental; |
| import org.apache.maven.api.annotations.Immutable; |
| |
| import static org.apache.maven.api.ExtensibleEnums.language; |
| |
| /** |
| * Language. |
| * <p> |
| * This extensible enum has two defined values, {@link #NONE} and {@link #JAVA_FAMILY}, |
| * but can be extended by registering a {@code org.apache.maven.api.spi.LanguageProvider}. |
| * <p> |
| * Implementation must have {@code equals()} and {@code hashCode()} implemented, so implementations of this interface |
| * can be used as keys. |
| * |
| * @since 4.0.0 |
| */ |
| @Experimental |
| @Immutable |
| @SuppressWarnings("checkstyle:InterfaceIsType") |
| public interface Language extends ExtensibleEnum { |
| |
| /** |
| * The "none" language. It is not versioned, family is same to itself, and compatible with itself only. |
| * In turn, every {@link Language} implementation must be compatible with {@code NONE} language. |
| */ |
| Language NONE = language("none"); |
| |
| // TODO: this should be moved out from here to Java Support (builtin into core) |
| Language JAVA_FAMILY = language("java"); |
| } |