Bug 196745 Data Engine implementation of BPS80- Result Set Sharing
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ResultIterator.java
{
		Set validDataSetColumnNames = new HashSet();
		for( int i = 1; i <= this.odiResult.getResultClass( ).getFieldCount( ); i++ )
		{
			validDataSetColumnNames.add( this.odiResult.getResultClass( ).getFieldName( i ) );
			validDataSetColumnNames.add( this.odiResult.getResultClass( ).getFieldAlias( i ) );
		}
		return validDataSetColumnNames;
	}
	
	/*
	 * @see org.eclipse.birt.data.engine.api.IResultIterator#getScope()
	 */
	public Scriptable getScope( )
	{
		return scope;
	}
	/**
	 * Internal method to start the iterator; must be called before any other
	 * method can be used
	 */
	private void start( ) throws DataException
	{
		assert state == NOT_STARTED;
		
		
		state = BEFORE_FIRST_ROW;
		this.getRdSaveHelper( ).doSaveStart( );
	}