org.microbean.bean.ReferenceSelector Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of microbean-bean Show documentation
Show all versions of microbean-bean Show documentation
microBean™ Bean: Utility classes for implementing beans.
/* -*- mode: Java; c-basic-offset: 2; indent-tabs-mode: nil; coding: utf-8-unix -*-
*
* Copyright © 2023–2024 microBean™.
*
* 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.microbean.bean;
@FunctionalInterface
interface ReferenceSelector {
/*
* Abstract methods.
*/
// Yes, this is needed. Consider: the attributedType actually selects two beans. If you want a reference, you
// have to say which one of the matched beans you want to use. You can't just use Id because you're going to need the
// Factory eventually.
//
// bean can be null, in which case the implementation has to use attributedType in some deliberately
// unspecified way to find it.
//
// Must throw an exception if bean != null and it is not selected in some way by the attributedType
public R reference(final AttributedType attributedType, final Bean bean, final Creation creation);
/*
* Default methods.
*/
public default R reference(final AttributedType attributedType, final Creation creation) {
return this.reference(attributedType, null, creation);
}
}