iReport/Jasper Report consuming data from an API

[rodrigoecai]

 Hello everyone,

 

I'm want to create a report that consume data from an API... The idea is get an Array of String with the values of a tag in a given period, and then create Graphs of them.

So I tried to create a Custom DataSource: I implemented JRDataSource, and then a Factory for it. Then I generated a .jar, put it in iReport's Classpath, created a new Connection/Datasource pointing to my Factory and the static method createDatasource, and when I click on Test, it says "Connection test successful".

What do i have to do next? I tried to "Report query" to get the fields, using the tab "DataSource Provider", but i get a warning: "The active connection is not a JasperReports DataSource provider". Do I have to create a Provider too? If so, what kind of Field it should have, considering the kind of data I want to get?

 

Thanks,

Rodrigo

Post Edited by rodrigoecai at 07/01/2010 17:19

Post Edited by rodrigoecai at 07/01/2010 18:22

[slow]

if you have created properly your personal JRDataSource implementation
with the two methods

    public Object getFieldValue(JRField jRField)
    public boolean next()


with a correct JRDataSourceFactory then , after you create the connection, simply declare the field you want to use and create the report, and run it.

I think you can try to use the JavaBean set datasource to make all more simply if you have beans to print.

 

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