DecoratingClassLoader (Spring Framework 5.2.12.RELEASE API)

java.lang.Object
- java.lang.ClassLoader
- - org.springframework.core.DecoratingClassLoader

Direct Known Subclasses:
OverridingClassLoader, ShadowingClassLoader
```
public abstract class DecoratingClassLoader
extends ClassLoader
```
Base class for decorating ClassLoaders such as OverridingClassLoader and ShadowingClassLoader, providing common handling of excluded packages and classes.
Since:
2.5.2
Author:
Juergen Hoeller, Rod Johnson

Constructor Summary

Constructors
Constructor	Description
`DecoratingClassLoader()`	Create a new DecoratingClassLoader with no parent ClassLoader.
`DecoratingClassLoader(ClassLoader parent)`	Create a new DecoratingClassLoader using the given parent ClassLoader for delegation.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`excludeClass(String className)`	Add a class name to exclude from decoration (e.g.
`void`	`excludePackage(String packageName)`	Add a package name to exclude from decoration (e.g.
`protected boolean`	`isExcluded(String className)`	Determine whether the specified class is excluded from decoration by this class loader.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - DecoratingClassLoader
```
public DecoratingClassLoader()
```
    Create a new DecoratingClassLoader with no parent ClassLoader.
  - DecoratingClassLoader
```
public DecoratingClassLoader(@Nullable
                             ClassLoader parent)
```
    Create a new DecoratingClassLoader using the given parent ClassLoader for delegation.
- Method Detail
  - excludePackage
```
public void excludePackage(String packageName)
```
    Add a package name to exclude from decoration (e.g. overriding).
    Any class whose fully-qualified name starts with the name registered here will be handled by the parent ClassLoader in the usual fashion.
    Parameters:
    packageName - the package name to exclude
  - excludeClass
```
public void excludeClass(String className)
```
    Add a class name to exclude from decoration (e.g. overriding).
    Any class name registered here will be handled by the parent ClassLoader in the usual fashion.
    Parameters:
    className - the class name to exclude
  - isExcluded
```
protected boolean isExcluded(String className)
```
    Determine whether the specified class is excluded from decoration by this class loader.
    The default implementation checks against excluded packages and classes.
    Parameters:
    className - the class name to check
    Returns:
    whether the specified class is eligible
    See Also:
    excludePackage(java.lang.String), excludeClass(java.lang.String)