Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
CachingInjector |
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| 0.0;0 |
1 | /** |
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2 | * |
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3 | * Licensed to the Apache Software Foundation (ASF) under one or more |
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4 | * contributor license agreements. See the NOTICE file distributed with |
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5 | * this work for additional information regarding copyright ownership. |
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6 | * The ASF licenses this file to You under the Apache License, Version 2.0 |
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7 | * (the "License"); you may not use this file except in compliance with |
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8 | * the License. You may obtain a copy of the License at |
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9 | * |
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10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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11 | * |
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12 | * Unless required by applicable law or agreed to in writing, software |
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13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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15 | * See the License for the specific language governing permissions and |
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16 | * limitations under the License. |
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17 | */ |
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18 | package org.apache.camel.impl; |
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19 | ||
20 | import org.apache.camel.impl.converter.TypeConverterRegistry; |
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21 | ||
22 | /** |
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23 | * A caching proxy so that a single |
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24 | * @version $Revision: 525537 $ |
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25 | */ |
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26 | public class CachingInjector<T> { |
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27 | private final TypeConverterRegistry repository; |
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28 | private final Class<T> type; |
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29 | private T instance; |
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30 | ||
31 | 34 | public CachingInjector(TypeConverterRegistry repository, Class<T> type) { |
32 | 34 | this.repository = repository; |
33 | 34 | this.type = type; |
34 | 34 | } |
35 | ||
36 | public synchronized T newInstance() { |
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37 | 27 | if (instance == null) { |
38 | 20 | instance = createInstance(type); |
39 | } |
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40 | 27 | return instance; |
41 | } |
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42 | ||
43 | protected T createInstance(Class<T> type) { |
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44 | 20 | return (T) repository.getInjector().newInstance(type); |
45 | } |
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46 | } |