Transient entity attributes and clearing cache

I have an entity with both queriable and transient attributes. One of the transient attributes uses the persistent primary key of the entity object as well as an attributes retrieved from another entity via an association in order to execute a CallableStatement. This transient attribute uses the following code:
public Number getReflectallow() {
if ((Number)getAttributeInternal(REFLECTALLOW) == null) {
return getReflectAllowFromDB();
} else {
return (Number)getAttributeInternal(REFLECTALLOW);
The getReflectAllowFromDB also sets the value in entity cache using the populateAttribute method.
My problem is that this database value can change and there are certain points in the application where I would like to clear the cache and rebuild all new values for this attribute. I have tried using both getTransaction.clearEntityCache() and the clearCache() on the view object but neither affects this field. I also cannot loop through the view and reset that attribute to null because it dirties the transaction. I'm assuming that clearing the cache does not work because the attribute is transient. How can I clear the values from cache?

Any help with this Shay?

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Transient entity attributes and clearing cache

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