User specific property "readbyme"

Hi, I have a problem. My task is to get a list of users, who have read a specific document - resource. I know that there is an application property named "readbyme" and it can be fetched like this

IAppProperty

appProperty = appProperties.getProperty(new

PropertyName("http://sapportals.com/xmlns/cm/acc_stat", "readbyme"),

resource, <b>userID</b>);

But I have quite a lot of users and I don't want to fetch the property individually for each user. Is there any more effective way? Thanks.

Robert