Package rife.validation.instrument

Class MetaDataBytecodeTransformer

java.lang.Object

rife.validation.instrument.MetaDataBytecodeTransformer

public abstract class MetaDataBytecodeTransformer
extends Object

This utility class provides an entrance method to modify the bytecode of a class so that metadata from a sibling class is merged into the first class.

Basically, this automatically creates an instance of the metadata class and stores it as a field of the modified class. All the interfaces of the metadata class are also automatically implemented by the modified class by delegating all the method calls to the added field instance.

WARNING: this class is not supposed to be used directly, it is made public since the RIFE2 agent has to be able to access it.

Since:

1.0

Constructor Summary

Constructors

Constructor	Description
MetaDataBytecodeTransformer()

Method Summary

Modifier and Type	Method	Description
static byte[]	mergeMetaDataIntoBytes(byte[] origBytes, Class metaData)	Performs the actual merging of the metadata class' functionalities into the bytes of the class that were provided.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

MetaDataBytecodeTransformer

public MetaDataBytecodeTransformer()

Method Details

mergeMetaDataIntoBytes

public static byte[] mergeMetaDataIntoBytes(byte[] origBytes,
 Class metaData)

Performs the actual merging of the metadata class' functionalities into the bytes of the class that were provided.

Parameters:

origBytes - the bytes that have to be modied

metaData - the metadata classes that will be merged into it

Returns:

the modified bytes

Since:

1.0