Bug 196745 Data Engine implementation of BPS80- Result Set Sharing
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ResultIterator.java
private Map 					boundColumnValueMap = new HashMap( );
	private BindingColumnsEvalUtil 	bindingColumnsEvalUtil;
	
	private int state = NOT_STARTED;
	
	private static final int NOT_STARTED = 0;
	private static final int BEFORE_FIRST_ROW = 1;
	private static final int ON_ROW = 2;
	private static final int AFTER_LAST_ROW = 3;
	private static final int CLOSED = -1;
	private static final String CACHED_FILE_PREFIX = "cacheresultiterator";
	private boolean isFirstRowPepared = true;
	
	private OutputStream metaOutputStream = null;
	private DataOutputStream rowOutputStream = null;
	
	
	private static Logger logger = Logger.getLogger( ResultIterator.class.getName( ) );
	private List columnList = null;
	private List preparedList = null;
	
	/**
	 * Constructor for report query (which produces a QueryResults)
	 * 
	 * @param context
	 * @param queryResults
	 * @param query
	 * @param odiResult
	 * @param scope
	 * @throws DataException