Bug 182061 Data engine changes to support result set sharing
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ResultIterator.java
odiResult.close( );
		odiResult = null;
		resultService = null;
		state = CLOSED;
		logger.logp( Level.FINE,
				ResultIterator.class.getName( ),
				"close",
				"a ResultIterator is closed" );
	}
	
	/**
	 * @return
	 */
	public org.eclipse.birt.data.engine.odi.IResultIterator getOdiResult( )
	{
		return odiResult;
	}
	/*
	 * @see org.eclipse.birt.data.engine.api.IResultIterator#findGroup(java.lang.Object[])
	 */
	public boolean findGroup( Object[] groupKeyValues ) throws BirtException
	{
		if ( groupUtil == null )
			groupUtil = new GroupUtil( this.resultService.getQueryDefn( ), this );
		return groupUtil.findGroup( groupKeyValues );
	}
	/**
	 * Util class to findGroup
	 */
	private class GroupUtil