Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
InjectListenerRegistrationWorker |
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1 | // Copyright 2005 The Apache Software Foundation |
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2 | // |
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3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
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4 | // you may not use this file except in compliance with the License. |
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5 | // You may obtain a copy of the License at |
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6 | // |
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7 | // http://www.apache.org/licenses/LICENSE-2.0 |
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8 | // |
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9 | // Unless required by applicable law or agreed to in writing, software |
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10 | // distributed under the License is distributed on an "AS IS" BASIS, |
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11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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12 | // See the License for the specific language governing permissions and |
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13 | // limitations under the License. |
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14 | ||
15 | package org.apache.tapestry.enhance; |
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16 | ||
17 | import org.apache.tapestry.IComponent; |
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18 | import org.apache.tapestry.spec.IComponentSpecification; |
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19 | ||
20 | /** |
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21 | * Checks to see if the component implements a specific interface, and adds code |
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22 | * to the component's finishLoad() method to register (with the page) for such |
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23 | * notifications. |
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24 | * |
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25 | * @author Howard M. Lewis Ship |
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26 | * @since 4.0 |
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27 | */ |
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28 | 2 | public class InjectListenerRegistrationWorker implements EnhancementWorker |
29 | { |
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30 | ||
31 | private Class _listenerInterface; |
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32 | ||
33 | private String _registerMethodName; |
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34 | ||
35 | public void performEnhancement(EnhancementOperation op, |
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36 | IComponentSpecification spec) |
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37 | { |
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38 | ||
39 | 2 | if (op.implementsInterface(_listenerInterface)) |
40 | { |
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41 | 2 | op.extendMethodImplementation(IComponent.class, |
42 | EnhanceUtils.FINISH_LOAD_SIGNATURE, "getPage()." |
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43 | + _registerMethodName + "(this);"); |
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44 | } |
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45 | 2 | } |
46 | ||
47 | public void setListenerInterface(Class listenerInterface) |
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48 | { |
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49 | 2 | _listenerInterface = listenerInterface; |
50 | 2 | } |
51 | ||
52 | public void setRegisterMethodName(String registerMethodName) |
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53 | { |
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54 | 1 | _registerMethodName = registerMethodName; |
55 | 1 | } |
56 | } |