SimpleInstrumentableClassLoader (Spring Framework 4.3.30.RELEASE API)

java.lang.Object
- java.lang.ClassLoader
- - org.springframework.core.DecoratingClassLoader
  - - org.springframework.core.OverridingClassLoader
    - - org.springframework.instrument.classloading.SimpleInstrumentableClassLoader

```
@UsesJava7
public class SimpleInstrumentableClassLoader
extends OverridingClassLoader
```
Simplistic implementation of an instrumentable ClassLoader.
Usable in tests and standalone environments.
从以下版本开始:
2.0
作者:
Rod Johnson, Costin Leau

字段概要
- 从类继承的字段 org.springframework.core.OverridingClassLoader
  DEFAULT_EXCLUDED_PACKAGES
- 从类继承的字段 org.springframework.core.DecoratingClassLoader
  parallelCapableClassLoaderAvailable

构造器概要
构造器
构造器说明
SimpleInstrumentableClassLoader(ClassLoader parent)
Create a new SimpleInstrumentableClassLoader for the given ClassLoader.

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`void`	`addTransformer(ClassFileTransformer transformer)`	Add a `ClassFileTransformer` to be applied by this ClassLoader.
`protected byte[]`	`transformIfNecessary(String name, byte[] bytes)`	Transformation hook to be implemented by subclasses.

从类继承的方法 org.springframework.core.OverridingClassLoader
isEligibleForOverriding, loadBytesForClass, loadClass, loadClass, loadClassForOverriding, openStreamForClass

从类继承的方法 org.springframework.core.DecoratingClassLoader
excludeClass, excludePackage, isExcluded

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - SimpleInstrumentableClassLoader
```
public SimpleInstrumentableClassLoader(ClassLoader parent)
```
    Create a new SimpleInstrumentableClassLoader for the given ClassLoader.
    参数:
    parent - the ClassLoader to build an instrumentable ClassLoader for
- 方法详细资料
  - addTransformer
```
public void addTransformer(ClassFileTransformer transformer)
```
    Add a ClassFileTransformer to be applied by this ClassLoader.
    参数:
    transformer - the ClassFileTransformer to register
  - transformIfNecessary
```
protected byte[] transformIfNecessary(String name,
                                      byte[] bytes)
```
    从类复制的说明: OverridingClassLoader
    Transformation hook to be implemented by subclasses.
    The default implementation simply returns the given bytes as-is.
    覆盖:
    transformIfNecessary 在类中 OverridingClassLoader
    参数:
    name - the fully-qualified name of the class being transformed
    bytes - the raw bytes of the class
    返回:
    the transformed bytes (never null; same as the input bytes if the transformation produced no changes)