Hi, there.
This is my first post after checking out JBossAOP, and implementing persistance and
transaction layer for my POJOs with it.
So ...
Is it possible to intercept element-of-an-array assignment?
I mean:
| //I'd like some code here (through Interceptor, of course)
| myArray[5] = newElement;
| //maybe I also would like some code 'around'..
| //maybe sth like this: myArray[5] = getCachedMyElement;
| //or even 'after': UPDATE OBJECT_TABLE .... WHERE ...
|
And the binding in jboss-aop.xml, would look like this:
| <aop>
| <bind pointcut="array-element-set(myClass.myArray)"...
| <bind pointcut="array-element-get(myClass.myArray)" ...
| </aop>
|
If I had the functionality, then I would write persistance-layer with no limitations
on collections classes, or whatever limitations existing persistance layers may have.
More deeply: One would not write bindings for every collection class, i.e.
collection.add(), collection.get(i)....
One would write generic persistance, by: intercepting
every-variable-change-including-array-element-assignment.
And the real example of this is: java.util.ArrayList, where it stores data internally
in an array:
| package java.util;
| public class ArrayList {
|
| private transient Object[] elementData
| ...
| public boolean add(Object o) {
| ensureCapacity(size + 1); // Increments modCount!!
| elementData[size++] = o;
| return true;
| }
| ...
|
I think you know what I mean now. I'd like to have simple
| <bind poincut="array-element-set(java.util.ArrayList->elementData)">
|
instead of binding, and implementing every "collection" class' method which manages
data.
PS. Of course AspectJ also doesn't have functionality mentioned above, either
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http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3843602#3843602
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http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=3843602
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