| /* |
| * 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.felix.dm.lambda; |
| |
| import org.apache.felix.dm.lambda.callbacks.SerializableLambda; |
| |
| /** |
| * Lambda allowing to define fluent service properties. Property names are deduces from the lambda parameter name. |
| * |
| * <p> Example of a component which provides fluent properties {"foo"="bar"; "foo2"=Integer(123)}: |
| * |
| * <pre>{@code |
| * public class Activator extends DependencyManagerActivator { |
| * public void init(BundleContext ctx, DependencyManager dm) throws Exception { |
| * component(comp -> comp.impl(MyComponentImpl.class).provides(MyService.class, foo->"bar", foo2 -> 123)); |
| * } |
| * } |
| * }</pre> |
| * |
| * <b>Caution: Fluent properties requires the usage of the "-parameter" javac option.</b> |
| * |
| * Under eclipse, you can enable this option using: |
| * |
| * <pre>{@code |
| * Windows -> Preference -> Compiler -> Classfile Generation -> Store information about method parameters. |
| * }</pre> |
| */ |
| @FunctionalInterface |
| public interface FluentProperty extends SerializableLambda { |
| /** |
| * Represents a fluent property |
| * |
| * @param name the property name. The parameter used by the lambda will be intropsected and will be used as the actual property name. |
| * @return the property value |
| */ |
| public Object apply(String name); |
| } |