Bug 144403 Jion include scripted dataset the result set is not list in the data explorer
Description; Jion include scripted dataset, the result set is not list in the data explorer Step to reproduce: Refer to the design file attached. Jioned with any scripted dataset will cause the problem. Actual result: Refer to the screenshot.
data/org.eclipse.birt.report.data.adapter/src/org/eclipse/birt/report/data/adapter/impl/DataSetMetaDataHelper.java
this.modelAdaptor = modelAdaptor;
		this.moduleHandle = moduleHandle;
	}
	/**
	 * 
	 * @param dataSetHandle
	 * @param useCache
	 * @return
	 * @throws BirtException
	 */
	IResultMetaData getDataSetMetaData( DataSetHandle dataSetHandle,
			boolean useCache ) throws BirtException
	{
		if ( dataSetHandle == null )
		{
			throw new AdapterException( ResourceConstants.DATASETHANDLE_NULL_ERROR );
		}
		if ( useCache )
		{
			return getCachedMetaData( dataSetHandle.getCachedMetaDataHandle( ) );
		}
		else
		{
			return getRealMetaData( dataSetHandle );
		}
	}
	/**
	 * 
	 * @param cmdHandle
	 * @return