org.broadleafcommerce.common.extensibility.jpa.copy

Class ConditionalFieldAnnotationsClassTransformer

java.lang.Object

org.broadleafcommerce.common.extensibility.jpa.copy.AbstractClassTransformer

org.broadleafcommerce.common.extensibility.jpa.copy.ConditionalFieldAnnotationsClassTransformer

All Implemented Interfaces:

javax.persistence.spi.ClassTransformer, BroadleafClassTransformer, org.springframework.beans.factory.InitializingBean

public class ConditionalFieldAnnotationsClassTransformer
extends AbstractClassTransformer
implements BroadleafClassTransformer

The purpose of this class is to allow the conditional addition or removal of annotations to a target entity based on template class. This does not add new fields or methods, nor does it remove fields or methods. Rather, this class copies annotations from a template class' field(s) to a target class' fields. It removes annotations from the target that are not on the template. As a result, this class takes the annotations from fields of a template class and adds them to fields in a target class. If the template contains fields that are not on the target, then unexpected behavior such as NullPointerExceptions may occur.

Author:

Kelly Tisdell

Field Summary

Fields

Modifier and Type	Field and Description
protected SupportLogger	logger
protected ConditionalFieldAnnotationCopyTransformersManager	manager
protected String	moduleName

Fields inherited from class org.broadleafcommerce.common.extensibility.jpa.copy.AbstractClassTransformer

alreadyLoadedClasses, preLoadClassNamePatterns

Constructor Summary

Constructors

Constructor and Description
ConditionalFieldAnnotationsClassTransformer(String moduleName)

Method Summary

Modifier and Type	Method and Description
void	compileJPAProperties(Properties props, Object key)
byte[]	transform(ClassLoader loader, String className, Class<?> classBeingRedefined, ProtectionDomain protectionDomain, byte[] classfileBuffer) Will return null if the Spring property value defined in #propertyName resolves to false, or if an exception occurs while trying to determine the value for the property.

Methods inherited from class org.broadleafcommerce.common.extensibility.jpa.copy.AbstractClassTransformer

afterPropertiesSet, setPreLoadClassNamePatterns

Methods inherited from class java.lang.Object

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

Field Detail

manager

protected ConditionalFieldAnnotationCopyTransformersManager manager

logger

protected SupportLogger logger

moduleName

protected String moduleName

Constructor Detail

ConditionalFieldAnnotationsClassTransformer

public ConditionalFieldAnnotationsClassTransformer(String moduleName)

Method Detail

transform

public byte[] transform(ClassLoader loader,
                        String className,
                        Class<?> classBeingRedefined,
                        ProtectionDomain protectionDomain,
                        byte[] classfileBuffer)
                 throws IllegalClassFormatException

Will return null if the Spring property value defined in #propertyName resolves to false, or if an exception occurs while trying to determine the value for the property.

Specified by:

transform in interface javax.persistence.spi.ClassTransformer

Parameters:

loader -

className -

classBeingRedefined -

protectionDomain -

classfileBuffer -

Returns:

Throws:

IllegalClassFormatException

compileJPAProperties

public void compileJPAProperties(Properties props,
                                 Object key)
                          throws Exception

Specified by:

compileJPAProperties in interface BroadleafClassTransformer

Throws:

Exception