pabloem commented on a change in pull request #11596:
URL: https://github.com/apache/beam/pull/11596#discussion_r427506366
##########
File path:
sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/healthcare/HL7v2IO.java
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@@ -431,25 +455,70 @@ private Message fetchMessage(HealthcareApiClient client,
String msgId)
this.filter = filter.get();
}
+ /**
+ * Instantiates a new List hl 7 v 2 messages.
+ *
+ * @param hl7v2Stores the hl 7 v 2 stores
+ * @param filter the filter
+ * @param initialSplitDuration the initial split duration for sendTime
dimension splits
+ */
+ ListHL7v2Messages(
+ ValueProvider<List<String>> hl7v2Stores,
+ ValueProvider<String> filter,
+ Duration initialSplitDuration) {
+ this.hl7v2Stores = hl7v2Stores.get();
+ this.filter = filter.get();
+ this.initialSplitDuration = initialSplitDuration;
Review comment:
`ValueProvider` arguments are usually not known at pipeline construction
time, so it is not useful to call `get` on them when you create the
PCollection. The usual method is to have ValueProvider attributes for the class
- when you get String arguments, you would wrap them with `StaticValueProvider`
- and in the execution-time methods (e.g. processelement, finish/startbundle),
you would call `get` on the valueproviders. I seem to have missed this point
earlier. sorry about that.
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