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
* @see org.eclipse.birt.data.engine.impl.document.IExprResultReader#getRowCount()
	 */
	public int getCount( )
	{
		return this.rowCount;
	}
	
	/*
	 * @see org.eclipse.birt.data.engine.impl.document.IExprResultReader#getRowId()
	 */
	public int getRowId( )
	{
		return this.getRowIndex( );
	}
	/*
	 * @see org.eclipse.birt.data.engine.impl.document.IExprResultReader#getRowIndex()
	 */
	public int getRowIndex( )
	{
		if ( this.currRowIndex >= this.rowCount )
			return this.rowCount;
		
		return this.currRowIndex;
	}
	
	/*
	 * @see org.eclipse.birt.data.engine.impl.document.IExprResultReader#next()
	 */
	public boolean next( ) throws DataException
	{