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i have to do database polling..this is wat i have done.but instance is not getting created in BPEL..
i have created a sequence in databse.
i have created a source table in database which has three colums id,name,sequence.(generated by doin seq.nextval)
i have created a table as seqhelper table which has two fields table_name and seqid.
now i hav dragged a db adapter.I hav chosen poll,update seq table..and given my seq table name,seqname filed as table_name,seqvalue field as seqid.and sequence fiels ad sequence column of source table ...and done polling frequency as 5 seconds.
now created a bpel process,chosen interface as based on wsdl and selected db adapters wsdl file and linked to bpel after removing the default exposed service of bpel..so bpel as one receive activity joined to db adapter...
i am inserting any new records to source table....instance is not getting created...please help..