ClassRedefiner (OpenJPA Parent POM 4.1.1 API)

java.lang.Object
- org.apache.openjpa.enhance.ClassRedefiner

```
public class ClassRedefiner
extends Object
```
Redefines the method bodies of existing classes. Supports Java 5 VMs that have a java agent installed on the command line as well as newer VMs without any -javaagent flag.

Since:

1.0.0

Constructor Summary

Constructors
Constructor Description

ClassRedefiner()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static boolean`	`canRedefineClasses(Log log)`
`static void`	`redefineClasses(OpenJPAConfiguration conf, Map<Class<?>,byte[]> classes)`	For each element in `classes`, this method will redefine all the element's methods such that field accesses are intercepted in-line.

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

- Constructor Detail
  - ClassRedefiner
```
public ClassRedefiner()
```
- Method Detail
  - redefineClasses
```
public static void redefineClasses(OpenJPAConfiguration conf,
                                   Map<Class<?>,byte[]> classes)
```
    For each element in classes, this method will redefine all the element's methods such that field accesses are intercepted in-line. If canRedefineClasses(Log) returns false, this method is a no-op.
  - canRedefineClasses
```
public static boolean canRedefineClasses(Log log)
```
    Returns:
    
    whether or not this VM has an instrumentation installed that permits redefinition of classes. This assumes that all the arguments will be modifiable classes according to Instrumentation.isModifiableClass(java.lang.Class<?>), and only checks whether or not an instrumentation is available and if retransformation is possible.