Bug 193875 we can not get an entir url by IHTMLActionHandler
we can not get an entir url by IHTMLActionHandler, so word emitter dose not write the right url. now hyperlink drill through in word emitter doesn't work.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
.newSession( context );
		IModelAdapter modelAdaptor = requestSession.getModelAdaptor( );
		DataSourceHandle dataSource = dataSet.getDataSource( );
		IBaseDataSourceDesign sourceDesign = modelAdaptor
				.adaptDataSource( dataSource );
		IBaseDataSetDesign dataSetDesign = modelAdaptor.adaptDataSet( dataSet );
		requestSession.clearCache( sourceDesign, dataSetDesign );
	}
	/**
	 * @param maxRows
	 */
	public void setMaxRows( int maxRows )
	{
		if ( config != null )
		{
			config.setMaxRowsPerQuery( maxRows );
		}
	}
	/**
	 * Collects all the distinct values for the given element and
	 * bindColumnName. This method will traverse the design tree for the given
	 * element and get the nearest binding column holder of it. The nearest
	 * binding column holder must be a list or table item, and it defines a
	 * distinct data set and bingding columns in it. If the element is null,
	 * binding name is empty or the binding column holder is not found, then
	 * return <code>Collections.EMPTY_LIST</code>. Caller can specify the max
	 * row number and start row number by implement the interface IRequestInfo.
	 * 
	 * @param bindingName
	 * @param elementHandle