[jira] [Created] (CAY-2760) ObjectContext.userProperties need a way to clear properties

["Andrus Adamchik (Jira)" <ji...@apache.org>]

Andrus Adamchik created CAY-2760:
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             Summary: ObjectContext.userProperties need a way to clear properties
                 Key: CAY-2760
                 URL: https://issues.apache.org/jira/browse/CAY-2760
             Project: Cayenne
          Issue Type: Improvement
            Reporter: Andrus Adamchik
             Fix For: 4.3.M1


I use ObjectContext.userProperties as a way of communicating state between DataChannel filters. Though it has some limitations that make it painful. The biggest one is that there's no way to remove a property stored. Even replacing the value with null doesn't work (setUserProperty("p", null) throws an exception).

Let's implement the following API:

{noformat}
ObjectContext.removeUserProperty(String)
ObjectContext.clearUserProperties()
{noformat}



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