The problem with the module method
decorateAssociationDescriptor() (living in roster demo) below is
that it never gets called.
The intricasies of the framework's descriptor decorator core
logic would need to be re-modeled in the demo packages (which would
be a train wreck).
Who instantiates such a class (below) ? The core... not the
example.
Now I worked hard to develop the editor. It works fine. It
cannot run without proper descriptor logic.
1. The current ObjectReferenceDescriptor OneToOne descriptor
logic models OneToMany and ManyToOne associations.
2. HardOneToOne OwningObjectReferenceDescriptor logic models
a MONOGAMOUS OneToOne relationship. It comes with very nice
trails editor.
Alejandro would you please advise for a solution for
HardOneToOne descriptor decorator logic ? Or are you going to
keep play this out.
Chris granted me commit priv's over a year ago. I put alot of
heart into this since and countless man hours on Jira's, QA,
Features. I also work in the defense industry and have projects
spec'd on alot of the work I have developed and modeled in trails.
Currently I have been taken out from code bing sniped. Chris belief
that you would welcome the help a year ago is far from existing and
never existed from the get go. I was never welcomed by you as a
committer.
So how far is this going to go. Just ignore it and let it go
it's path?
You could tell me to go find the nearest bridge and jump off.
I could never be so cruel. I am the one taking the hits to the
chin. You took the legs out from under the code I developed. You
are obligated to help resolve this. To continue down the path of
putting other out of business is wrong. I have 20+ behind me in
project experience and have seen it all.
Date: Tue, 5 Feb 2008 11:07:46 -0500
Subject: RE: [trails-dev] HardOneToOne and
HibernateDescriptorDecorator
package
org.trails.hibernate;
import
java.beans.IntrospectionException;
import
java.beans.Introspector;
import
java.beans.PropertyDescriptor;
import
java.lang.reflect.Field;
import
java.lang.reflect.Method;
import
ognl.Ognl;
import
ognl.OgnlException;
import
org.apache.commons.logging.Log;
import
org.apache.commons.logging.LogFactory;
import
org.hibernate.mapping.Property;
import
org.hibernate.type.Type;
import
org.trails.descriptor.IClassDescriptor;
import
org.trails.descriptor.IPropertyDescriptor;
import
org.trails.descriptor.ObjectReferenceDescriptor;
import
org.trails.descriptor.extension.OwningObjectReferenceDescriptor;
public
class
HardOneToOneDescriptorDecorator
extends
HibernateDescriptorDecorator {
protected
static
final
Log
LOG
= LogFactory
.
getLog(HardOneToOneDescriptorDecorator.
class
);
@Override
public
IPropertyDescriptor
decorateAssociationDescriptor(Class type,
Property mappingProperty, IPropertyDescriptor
descriptor,
IClassDescriptor parentClassDescriptor) {
super
.decorateAssociationDescriptor(type,
mappingProperty, descriptor,
parentClassDescriptor);
Type hibernateType = mappingProperty.getType();
Class parentClassType =
parentClassDescriptor.getType();
ObjectReferenceDescriptor descriptorReference =
new
ObjectReferenceDescriptor(
type, descriptor,
hibernateType.getReturnedClass());
try
{
Field propertyField =
parentClassType.getDeclaredField(descriptor
.getName());
PropertyDescriptor beanPropDescriptor =
(PropertyDescriptor) Ognl
.
getValue(
"propertyDescriptors.{? name ==
'"
+ descriptor.getName() +
"'}[0]"
, Introspector
.
getBeanInfo(parentClassType));
Method readMethod =
beanPropDescriptor.getReadMethod();
// Start by checking for and
retrieving mappedBy attribute inside
// the annotation
String inverseProperty =
""
;
if
(readMethod
.isAnnotationPresent(javax.persistence.
OneToOne
.
class
)) {
inverseProperty = readMethod.getAnnotation(
javax.persistence.
OneToOne
.
class
).mappedBy();
}
else
if
(propertyField
.isAnnotationPresent(javax.persistence.
OneToOne
.
class
)) {
inverseProperty = propertyField.getAnnotation(
javax.persistence.
OneToOne
.
class
).mappedBy();
}
else
{
// If there is none then just return
the
// ObjectReferenceDescriptor
return
descriptorReference;
}
if
(
""
.equals(inverseProperty)) {
//
http://forums.hibernate.org/viewtopic.php?t=974287&sid=12d018b08dffe07e263652190cfc4e60
// Caution... this does not support
multiple
// class references across the
OneToOne relationship
Class returnType =
readMethod.getReturnType();
for
(
int
i = 0; i <
returnType.getDeclaredMethods().
length
; i++) {
if
(returnType.getDeclaredMethods()[i].getReturnType()
.equals(propertyField.getDeclaringClass())) {
Method theProperty =
returnType.getDeclaredMethods()[i];
/* strips preceding 'get' */
inverseProperty =
theProperty.getName().substring(3)
.toLowerCase();
break
;
}
}
}
/**
*
Check
identity
owner/association
*/
if
(readMethod
.isAnnotationPresent(org.trails.descriptor.annotation.
HardOneToOne
.
class
)) {
OwningObjectReferenceDescriptor
owningObjectReferenceDescriptor =
new
OwningObjectReferenceDescriptor();
org.trails.descriptor.annotation.
HardOneToOne
.Identity identity = readMethod
.getAnnotation(
org.trails.descriptor.annotation.
HardOneToOne
.
class
)
.identity();
if
(identity ==
org.trails.descriptor.annotation.
HardOneToOne
.Identity.
OWNER
) {
inverseProperty = descriptor.getName();
if
(inverseProperty.equals(
""
)) {
// find inverse property for ognl
usage
//
http://forums.hibernate.org/viewtopic.php?t=974287&sid=12d018b08dffe07e263652190cfc4e60
// Caution... this does not support
multiple
// class references across the
OneToOne relationship
Class returnType =
readMethod.getReturnType();
for
(
int
i = 0; i <
returnType.getDeclaredMethods().
length
; i++) {
if
(returnType.getDeclaredMethods()[i]
.getReturnType().equals(
propertyField.getDeclaringClass())) {
Method theProperty = returnType
.getDeclaredMethods()[i];
/* strips preceding 'get' */
inverseProperty = theProperty.getName()
.substring(3).toLowerCase();
break
;
}
}
}
owningObjectReferenceDescriptor
.setInverseProperty(inverseProperty);
descriptorReference.addExtension(
OwningObjectReferenceDescriptor.
class
.getName(),
owningObjectReferenceDescriptor);
}
}
}
catch
(SecurityException e) {
LOG
.error(e.getMessage());
}
catch
(NoSuchFieldException e) {
LOG
.error(e.getMessage());
}
catch
(OgnlException e) {
LOG
.error(e.getMessage());
}
catch
(IntrospectionException e) {
LOG
.error(e.getMessage());
}
return
descriptorReference;
}
}
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