diff --git a/spring-core/src/main/java/org/springframework/core/StandardReflectionParameterNameDiscoverer.java b/spring-core/src/main/java/org/springframework/core/StandardReflectionParameterNameDiscoverer.java new file mode 100644 index 0000000000..70cc2b030d --- /dev/null +++ b/spring-core/src/main/java/org/springframework/core/StandardReflectionParameterNameDiscoverer.java @@ -0,0 +1,51 @@ +/* + * Copyright 2002-2013 the original author or authors. + * + * Licensed 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.springframework.core; + +import java.lang.reflect.Constructor; +import java.lang.reflect.Method; +import java.lang.reflect.Parameter; + +/** + * {@link ParameterNameDiscoverer} implementation which uses JDK 8's + * reflection facilities for introspecting parameter names. + * + * @author Juergen Hoeller + * @since 4.0 + * @see java.lang.reflect.Parameter#getName() + */ +public class StandardReflectionParameterNameDiscoverer implements ParameterNameDiscoverer { + + public String[] getParameterNames(Method method) { + Parameter[] parameters = method.getParameters(); + String[] parameterNames = new String[parameters.length]; + for (int i = 0; i < parameters.length; i++) { + parameterNames[i] = parameters[i].getName(); + } + return parameterNames; + } + + public String[] getParameterNames(Constructor ctor) { + Parameter[] parameters = ctor.getParameters(); + String[] parameterNames = new String[parameters.length]; + for (int i = 0; i < parameters.length; i++) { + parameterNames[i] = parameters[i].getName(); + } + return parameterNames; + } + +}