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[BEAM-10976] Document go sdk bundle finalization #17048

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merged 4 commits into from
Apr 5, 2022
Merged

[BEAM-10976] Document go sdk bundle finalization #17048

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81d92f3
Document go sdk bundle finalization
damccorm Mar 8, 2022
84d71bb
Merge branch 'master' of https://github.com/damccorm/beam into users/…
damccorm Mar 31, 2022
3b82ddb
Merge branch 'master' of https://github.com/damccorm/beam into users/…
damccorm Mar 31, 2022
8e7254e
Make examples compile
damccorm Mar 31, 2022
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17 changes: 17 additions & 0 deletions sdks/go/examples/snippets/04transforms.go
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@ import (
"reflect"
"sort"
"strings"
"time"

"github.com/apache/beam/sdks/v2/go/pkg/beam"
"github.com/apache/beam/sdks/v2/go/pkg/beam/core/typex"
Expand Down Expand Up @@ -88,6 +89,22 @@ func CreateAndSplit(s beam.Scope, input []stringPair) beam.PCollection {

// [END cogroupbykey_input_helpers]

type splittableDoFn struct{}

// [START bundlefinalization_simplecallback]

func (fn *splittableDoFn) ProcessElement(element string, bf beam.BundleFinalization) {
// ... produce output ...

bf.RegisterCallback(5*time.Minute, func() error {
// ... perform a side effect ...

return nil
})
}

// [END bundlefinalization_simplecallback]

// [START cogroupbykey_output_helpers]

func formatCoGBKResults(key string, emailIter, phoneIter func(*string) bool) string {
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2 changes: 1 addition & 1 deletion website/www/site/content/en/documentation/programming-guide.md
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Expand Up @@ -6535,7 +6535,7 @@ use case.
{{< /highlight >}}

{{< highlight go >}}
This is not supported yet, see BEAM-10976.
{{< code_sample "sdks/go/examples/snippets/04transforms.go" bundlefinalization_simplecallback >}}
{{< /highlight >}}

## 13. Multi-language pipelines {#multi-language-pipelines}
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