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org.eclipse.persistence.tools.weaving.jpa
Class StaticWeaveClassTransformer

java.lang.Object
org.eclipse.persistence.tools.weaving.jpa.StaticWeaveClassTransformer

public class StaticWeaveClassTransformer

extends java.lang.Object

Description: This class provides the implementation of class transformer by leveraging on the following existing APIs,

• PersistenceUnitProcessor.processORMetadata() - get class descriptor.
• PersistenceUnitProcessor.buildEntityList() - get entity classes lsit.
• TransformerFactory.createTransformerAndModifyProject - get class transformer.

Responsibilities:

• Create the classtransformer for each persistence unit individually and store them into the list.
• Provide class transfom method to perform weaving function.

Field Summary

private java.lang.ClassLoader	aClassLoader
private java.util.ArrayList<javax.persistence.spi.ClassTransformer>	classTransformers
(package private) org.eclipse.persistence.internal.jpa.StaticWeaveInfo	info

Constructor Summary

StaticWeaveClassTransformer(java.net.URL inputArchiveURL, java.lang.ClassLoader aclassloader)
Constructs an instance of StaticWeaveClassTransformer.

StaticWeaveClassTransformer(java.net.URL inputArchiveURL, java.lang.String persistenceXMLLocation, java.lang.ClassLoader aclassloader, java.io.Writer logWriter, int loglevel)
Constructs an instance of StaticWeaveClassTransformer.

Method Summary

private void	buildClassTransformers(java.net.URL inputArchiveURL, java.lang.String persistenceXMLLocation, java.lang.ClassLoader aclassloader) The method creates classtransformer list corresponding to each persistence unit.
byte[]	transform(java.lang.String originalClassName, java.lang.Class originalClass, byte[] originalClassBytes) The method performs weaving function on the given class.

Methods inherited from class java.lang.Object

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

Field Detail

classTransformers

private java.util.ArrayList<javax.persistence.spi.ClassTransformer> classTransformers

info

org.eclipse.persistence.internal.jpa.StaticWeaveInfo info

aClassLoader

private java.lang.ClassLoader aClassLoader

Constructor Detail

StaticWeaveClassTransformer

public StaticWeaveClassTransformer(java.net.URL inputArchiveURL,
                                   java.lang.ClassLoader aclassloader)
                            throws java.lang.Exception

Constructs an instance of StaticWeaveClassTransformer.

Throws:

java.lang.Exception

StaticWeaveClassTransformer

public StaticWeaveClassTransformer(java.net.URL inputArchiveURL,
                                   java.lang.String persistenceXMLLocation,
                                   java.lang.ClassLoader aclassloader,
                                   java.io.Writer logWriter,
                                   int loglevel)
                            throws java.net.URISyntaxException,
                                   java.io.IOException

Constructs an instance of StaticWeaveClassTransformer.

Throws:

java.net.URISyntaxException

java.io.IOException

Method Detail

transform

public byte[] transform(java.lang.String originalClassName,
                        java.lang.Class originalClass,
                        byte[] originalClassBytes)
                 throws java.lang.instrument.IllegalClassFormatException

The method performs weaving function on the given class.

Returns:

the converted(woven) class

Throws:

java.lang.instrument.IllegalClassFormatException

buildClassTransformers

private void buildClassTransformers(java.net.URL inputArchiveURL,
                                    java.lang.String persistenceXMLLocation,
                                    java.lang.ClassLoader aclassloader)
                             throws java.net.URISyntaxException,
                                    java.io.IOException

The method creates classtransformer list corresponding to each persistence unit.

Throws:

java.net.URISyntaxException

java.io.IOException

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