| Clover coverage report - PLT Utilities Test Coverage (plt-20120304-r5436) |
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| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| ComposedClassLoader.java | - | 0% | 0% | 0% |
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| 1 | /*BEGIN_COPYRIGHT_BLOCK* | |
| 2 | ||
| 3 | PLT Utilities BSD License | |
| 4 | ||
| 5 | Copyright (c) 2007-2010 JavaPLT group at Rice University | |
| 6 | All rights reserved. | |
| 7 | ||
| 8 | Developed by: Java Programming Languages Team | |
| 9 | Rice University | |
| 10 | http://www.cs.rice.edu/~javaplt/ | |
| 11 | ||
| 12 | Redistribution and use in source and binary forms, with or without modification, are permitted | |
| 13 | provided that the following conditions are met: | |
| 14 | ||
| 15 | - Redistributions of source code must retain the above copyright notice, this list of conditions | |
| 16 | and the following disclaimer. | |
| 17 | - Redistributions in binary form must reproduce the above copyright notice, this list of | |
| 18 | conditions and the following disclaimer in the documentation and/or other materials provided | |
| 19 | with the distribution. | |
| 20 | - Neither the name of the JavaPLT group, Rice University, nor the names of the library's | |
| 21 | contributors may be used to endorse or promote products derived from this software without | |
| 22 | specific prior written permission. | |
| 23 | ||
| 24 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR | |
| 25 | IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
| 26 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND | |
| 27 | CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 28 | DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 29 | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER | |
| 30 | IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |
| 31 | OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 32 | ||
| 33 | *END_COPYRIGHT_BLOCK*/ | |
| 34 | ||
| 35 | package edu.rice.cs.plt.reflect; | |
| 36 | ||
| 37 | import java.net.URL; | |
| 38 | ||
| 39 | /** | |
| 40 | * <p>A class loader defining the search for classes and resources to first check | |
| 41 | * a parent loader, and then delegate to a child loader. This allows two distinct | |
| 42 | * class loading hierarchies to be merged.</p> | |
| 43 | * | |
| 44 | * <p>One application is to reverse the usual search order: if I'm given loader {@code c} and | |
| 45 | * would like to define an instance of {@code MyLoader} that delegates to {@code c} before checking | |
| 46 | * its own resources, I can invoke {@code new MyLoader(c)}; on the other hand, if I want to check | |
| 47 | * the {@code MyLoader's} resources <em>first</em>, I might do so with a {@code ComposedClassLoader}: | |
| 48 | * {@code new ComposedClassLoader(new MyLoader(null), c)}.</p> | |
| 49 | */ | |
| 50 | public class ComposedClassLoader extends ClassLoader { | |
| 51 | ||
| 52 | private final ClassLoader _child; | |
| 53 | ||
| 54 | 0 | public ComposedClassLoader(ClassLoader parent, ClassLoader child) { |
| 55 | 0 | super(parent); |
| 56 | 0 | _child = child; |
| 57 | } | |
| 58 | ||
| 59 | 0 | @Override protected Class<?> findClass(String name) throws ClassNotFoundException { |
| 60 | 0 | return _child.loadClass(name); |
| 61 | } | |
| 62 | ||
| 63 | 0 | @Override protected URL findResource(String name) { |
| 64 | 0 | return _child.getResource(name); |
| 65 | } | |
| 66 | ||
| 67 | } |
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