[rules-users] Pointer to working memory from within rule?

[Scott Burrows]

I'm converting from 4.0.7 to 5.0.1 and am getting errors on the previously
working function below, (note this function is in the drl file):

The error is:
"Type mismacth:  cannot convert from org.drools.QueryResults to
org.drools.runtime.rule.QueryResults"


I'm told we need to use the following class for queries in 5.0 and going
forward:

import org.drools.runtime.rule.QueryResults;
import org.drools.runtime.rule.QueryResultsRow;


The problem is getting a pointer to working memory from within a rule or
function used to be done via the KnowledgerHelper object but that is not
compatible with the new QueryResults class.

What am I doing wrong?


-------------------------------------------------------------------------------------------------------------------------------

function CardTransaction getCompletedTransaction (String cardnum,
KnowledgeHelper khObj) {
    CardTransaction tranObj = null;
    String[] queryParams = {cardnum};

    QueryResult result = null;

    final QueryResults results =
khObj.getWorkingMemory().getQueryResults("GetCompletedTransaction",
queryParams);

    for (Iterator<QueryResult> it = results.iterator(); it.hasNext(); ) {
        result = it.next();
           tranObj = (CardTransaction)result.get("cardtransactionobj");
    }

    if (tranObj != null)
        return tranObj;
    else
        return null;
}



Scott
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