Java tutorial
/* * 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.wicket.spring.injection.annot; import java.lang.annotation.Documented; import java.lang.annotation.ElementType; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; import java.lang.annotation.Target; /** * Annotation used to tag a field as a placeholder for a spring bean. * * @author Igor Vaynberg (ivaynberg) */ @Retention(RetentionPolicy.RUNTIME) @Target({ ElementType.FIELD }) @Documented public @interface SpringBean { /** * Optional attribute for specifying the name of the bean. If not specified, the bean will be * looked up by the type of the field with the annotation. * * @return name attr */ String name() default ""; /** * Optional attribute for specifying if bean is required or not. * * @return {@code false} if the bean is optional. Default: {@code true}. */ boolean required() default true; }