I would be a little weary of auto terminating relationships that aren't defined. I would expect that to lead to unwanted data loss. If that is implemented, can we make that a configuration option or something? I would not want that to be the default in my graphs for sure.
On Tue, Sep 22, 2015 at 9:05 AM, Bryan Bende <[email protected]> wrote: > Not sure if this is exactly what everyone is looking for, but if you are > working against master (0.3.1-SNAPSHOT) then the ProcessContext interface > now has two new methods: > > boolean hasIncomingConnection(); > boolean hasConnection(Relationship relationship); > > This way a processor can check hasIncomingConnection() to know if it should > expect incoming FlowFiles, and can check hasConnection(Relationship) to > know if it should even bother transferring a FlowFile to an outgoing > relationship. > These were added in support of making ExecuteSQL work with and without > incoming FlowFiles [1]. > > -Bryan > > [1] https://issues.apache.org/jira/browse/NIFI-932 > > > On Tue, Sep 22, 2015 at 6:32 AM, Joe Witt <[email protected]> wrote: > > > Hello > > > > Addressing Grace's question: > > > > What you are looking for is 'context' and the way context is included > > is on attributes of a given FlowFile. You can, for example, use > > UpdateAttribute to set that context in the proper part of the flow > > preceding your custom processor. > > > > Addressing Rick's comment: > > > > I think we mentioned we could add a way to annotate relationships on > > processors as being auto-terminated by default. Not aware of a JIRA > > for this yet though. It simply provides a way for the processor to > > developer to signal the default behavior is that a relationship is > > unused and that is ok vs our current approach which says each > > relationship must be chosen as terminated or connected. > > > > Thanks > > Joe > > > > On Mon, Sep 21, 2015 at 11:26 PM, Rick Braddy <[email protected]> > wrote: > > > Me, too. > > > > > > And I need the ability to determine which connection(s) are linked to > > each relationship, along with a way to auto-terminate unused > relationships > > from my processor. > > > > > > Thanks > > > Rick > > > > > >> On Sep 21, 2015, at 10:22 PM, Huang, Jie <[email protected]> wrote: > > >> > > >> Hi all, > > >> > > >> I need to get the connection information or parents for further action > > in onTriger event. > > >> Is there any way to get the upstream connections or parent processors > > from any customized Processor? > > >> > > >> Thank you && Best Regards, > > >> Grace （Huang Jie) > > >> > > > -- Corey Flowers Vice President, Onyx Point, Inc (410) 541-6699 [email protected] -- This account not approved for unencrypted proprietary information --
