| /* |
| * 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.sling.models.spi; |
| |
| import org.jetbrains.annotations.NotNull; |
| import org.osgi.annotation.versioning.ConsumerType; |
| |
| /** |
| * Optimization interface for Injectors which wish to avoid repeated accessing of some object |
| * based on the adaptable. If an Injector implements this interface, it must also be prepared |
| * to handle the case where ObjectUtils.NULL is passed as the adaptable. |
| */ |
| @ConsumerType |
| public interface ValuePreparer { |
| |
| /** |
| * Prepare a value from the adaptable. |
| * |
| * @param adaptable the adaptable |
| * @return a prepared value or ObjectUtils.NULL if a value is not preparable |
| */ |
| @NotNull Object prepareValue(@NotNull Object adaptable); |
| } |