Creating metering data graph

Question

Hi all,
I am trying to create quite a simple BI Beans Graph presenting metering data, but I can't seem to be able to figure out how to do this with ViewObject(s) as a data source.
Data would consist of two tables, propably two ViewObjects also. First table holds general information about the metering, such as name and unit of measurement. The other table holds the actual measurement values and timestamp for these.
Graph should be simple line graph where one axis shows the measurement values and the other timestamps. Legend should hold the names of meterings. There should be possible to select several meterings to be shown at the same time.
Can someone guide me how to do this. I've managed to do this somehow with one metering like this:
graph.setDataRowShownAsASeries(false);
JUSingleTableGraphBinding model =
JUSingleTableGraphBinding.getInstance, panelBinding,
graph,JUSingleTableGraphBinding.VERTICAL_ABSOLUTE_LINE,
"MeteringDataView", null,"MeteringDataViewIter",
new String[] { "Value","Value"},"ValueStartTime",
new String[] {"","Metering"});
graph.setDataSource(model);
This isn't just enough so I really appreciate your help.
Janne

Answer 1

Are you using OLAP data in the context of JDeveloper? If so, you should not need to use a ViewObject as the datasource. You can do a query specifically for the graph. If you want the graph to share the query with a crosstab you need to get the query object from the crosstab and set it on the graph.