| /** |
| * 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.camel.impl.converter; |
| |
| import org.apache.camel.spi.TypeConverterRegistry; |
| |
| /** |
| * A caching proxy |
| * |
| * @version $Revision$ |
| */ |
| public class CachingInjector<T> { |
| private final TypeConverterRegistry repository; |
| private final Class<T> type; |
| private T instance; |
| |
| public CachingInjector(TypeConverterRegistry repository, Class<T> type) { |
| this.repository = repository; |
| this.type = type; |
| } |
| |
| public synchronized T newInstance() { |
| if (instance == null) { |
| instance = createInstance(type); |
| } |
| return instance; |
| } |
| |
| protected T createInstance(Class<T> t) { |
| return repository.getInjector().newInstance(t); |
| } |
| } |