Bug 204430 [Automation][Regression]An exception is thrown in console when preview reportdesign
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/document/util/ExprDataReader1.java
import org.eclipse.birt.data.engine.impl.document.viewing.DataSetResultSet;
import org.eclipse.birt.data.engine.odi.IResultObject;
/**
 * Read the raw expression data from report document. This instance only read
 * the row one by one.
 */
class ExprDataReader1 implements IExprDataReader
{
	private int currReadIndex;
	private int currRowIndex;
	private int INT_LENGTH;
	
	private DataInputStream rowExprsDis;
	private RAInputStream rowExprsRAIs;
	private RAInputStream rowLenRAIs;
	private DataInputStream rowLenDis;
	
	private int rowCount;
	
	private int version;
	private Map exprValueMap;
	private List exprKeys;
	private Map dataSetExprKeys;
	private int metaOffset;
	private DataSetResultSet dataSetData;
	private Map bindingNameTypeMap;
	
	/**
	 * @param rowExprsRAIs
	 * @param rowLenRAIs