Bug 131011 Support running query based on report document data
Data Engine should support running a query based on data set and expression data stored in a report document. This bugzilla entry serves as a repository for design docs and notes related to this feature.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ResultIterator.java
import java.sql.Blob;
import java.util.Date;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.eclipse.birt.core.data.DataTypeUtil;
import org.eclipse.birt.core.exception.BirtException;
import org.eclipse.birt.data.engine.api.DataEngineContext;
import org.eclipse.birt.data.engine.api.IBaseExpression;
import org.eclipse.birt.data.engine.api.IBaseQueryDefinition;
import org.eclipse.birt.data.engine.api.IQueryResults;
import org.eclipse.birt.data.engine.api.IResultIterator;
import org.eclipse.birt.data.engine.api.IResultMetaData;
import org.eclipse.birt.data.engine.api.querydefn.GroupDefinition;
import org.eclipse.birt.data.engine.api.querydefn.ScriptExpression;
import org.eclipse.birt.data.engine.core.DataException;
import org.eclipse.birt.data.engine.executor.transform.CachedResultSet;
import org.eclipse.birt.data.engine.expression.ExprEvaluateUtil;
import org.eclipse.birt.data.engine.i18n.ResourceConstants;
import org.eclipse.birt.data.engine.impl.document.RDSave;
import org.eclipse.birt.data.engine.impl.document.RDUtil;
import org.eclipse.birt.data.engine.script.ScriptEvalUtil;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.Scriptable;
/**
 * An iterator on a result set from a prepared and executed report query.
 * Multiple ResultIterator objects could be associated with the same
 * QueryResults object.
 */
public class ResultIterator implements IResultIterator