As I could see it is not possible to create without header because of this line on CsvCreateTableBuilder:
csvUpdateCallback.writeRow(columnNames, false); on execute method, it is always creating the header column, maybe just a if before that would fix that 2014-07-16 18:22 GMT-03:00 Kasper Sørensen <[email protected]>: > I'm just now simultaniously looking into the MM csv code ... I get the > feeling you're maybe a bit in untested territory. At least it seems that > CsvDataContextTest does not exhibit a lot of test cases around having no > column headers ... Might be we need your feedback here if there are issues. > > > 2014-07-16 23:19 GMT+02:00 Kasper Sørensen <[email protected] > >: > > > Ah, you want a header-less CSV file? You then need to instantiate your > > CsvDataContext with a CsvConfiguration that > > specifies CsvConfiguration.NO_COLUMN_NAME_LINE as the > > 'columnNameLineNumber' property. If you otherwise want defaults, that > would > > be like this: > > > > new CsvConfiguration(CsvConfiguration.NO_COLUMN_NAME_LINE); > > > > > > 2014-07-16 23:14 GMT+02:00 Júnior <[email protected]>: > > > > Right, what I'd like to know is to create the table without the header, I > >> think the only way would be changing the CsvCreateTableBuilder. > >> Thanks, > >> > >> > >> > >> 2014-07-16 18:12 GMT-03:00 Kasper Sørensen < > >> [email protected]>: > >> > >> > Hmm actually I just now realized that you can completely omit the Drop > >> > Table part ... if you use create table on an empty file, it will > simply > >> > create the header. > >> > > >> > > >> > 2014-07-16 23:10 GMT+02:00 Kasper Sørensen < > >> [email protected] > >> > >: > >> > > >> > > Yes, you do that while creating the table. Like this: > >> > > > >> > > CsvDataContext dc = ...; > >> > > dc.executeUpdate(new UpdateScript() { > >> > > @Override > >> > > public void run(UpdateCallback callback) { > >> > > > callback.dropTable(dc.getDefaultSchema().getTable(0)); > >> > > > >> > > callback.createTable(dc.getDefaultSchema(), > >> > > "newtable").withColumn("foo").withColumn("bar").execute(); > >> > > } > >> > > }); > >> > > > >> > > (replace with your own column names of course) > >> > > > >> > > > >> > > 2014-07-16 23:04 GMT+02:00 Júnior <[email protected]>: > >> > > > >> > > Hi Kasper, > >> > >> > >> > >> thanks for your reply, but what about the columns? > >> > >> > >> > >> Do I need to add columns to this newly created table? > >> > >> > >> > >> Att. > >> > >> > >> > >> > >> > >> 2014-07-16 18:00 GMT-03:00 Kasper Sørensen < > >> > >> [email protected]>: > >> > >> > >> > >> > Hi there, > >> > >> > > >> > >> > There is a little known trick to get around that issue, so I > guess > >> > it's > >> > >> a > >> > >> > very fair question. > >> > >> > > >> > >> > The trick is to first do a drop table, and then a new create > table. > >> > >> > > >> > >> > When MM is initialized with an existing empty file, it will > >> determine > >> > >> that > >> > >> > there IS a table, since the file is there, but that table has no > >> > >> columns, > >> > >> > because the file does not define any columns. Maybe it's a bit > >> silly > >> > - I > >> > >> > actually think that's worth discussing ... But the reason it is > >> there > >> > >> is I > >> > >> > guess to indicate that at least the file is there, it's not a > >> > >> non-existing > >> > >> > file (in which case there would not be any table). > >> > >> > > >> > >> > Best regards, > >> > >> > Kasper > >> > >> > > >> > >> > > >> > >> > 2014-07-16 21:37 GMT+02:00 Júnior <[email protected]>: > >> > >> > > >> > >> > > Hi, > >> > >> > > > >> > >> > > I'm trying to use the metamodel to write on an empty csv, > >> > >> > > > >> > >> > > But I'm getting errors saying that there is no column. > >> > >> > > > >> > >> > > I was able to do that calling create table with a different > name > >> > from > >> > >> the > >> > >> > > file. > >> > >> > > Then added the columns. > >> > >> > > > >> > >> > > I worked, but it created the header line with the column names, > >> > would > >> > >> it > >> > >> > be > >> > >> > > possible to do that without adding the column names in the csv > >> file? > >> > >> > > > >> > >> > > Att. > >> > >> > > -- > >> > >> > > Francisco Ribeiro > >> > >> > > *SCEA|SCJP|SCWCD|IBM Certified SOA Associate* > >> > >> > > > >> > >> > > >> > >> > >> > >> > >> > >> > >> > >> -- > >> > >> Francisco Ribeiro > >> > >> *SCEA|SCJP|SCWCD|IBM Certified SOA Associate* > >> > >> > >> > > > >> > > > >> > > >> > >> > >> > >> -- > >> Francisco Ribeiro > >> *SCEA|SCJP|SCWCD|IBM Certified SOA Associate* > >> > > > > > -- Francisco Ribeiro *SCEA|SCJP|SCWCD|IBM Certified SOA Associate*
