HL7v2IO.Read.FetchHL7v2Message (google-cloud-platform 2.44.0 API)

java.lang.Object
- org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PCollection<java.lang.String>,HL7v2IO.Read.Result>
- - org.apache.beam.sdk.io.gcp.healthcare.HL7v2IO.Read.FetchHL7v2Message

All Implemented Interfaces:

java.io.Serializable, org.apache.beam.sdk.transforms.display.HasDisplayData

Enclosing class:

HL7v2IO.Read
```
public static class HL7v2IO.Read.FetchHL7v2Message
extends org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PCollection<java.lang.String>,HL7v2IO.Read.Result>
```
PTransform to fetch a message from an Google Cloud Healthcare HL7v2 store based on msgID.
This DoFn consumes a PCollection of notifications Strings from the HL7v2 store, and fetches the actual HL7v2Message object based on the id in the notification and will output a PCollectionTuple which contains the output and dead-letter PCollection.
The PCollectionTuple output will contain the following PCollection:
- HL7v2IO.Read.OUT - Contains all PCollection records successfully read from the HL7v2 store.
- HL7v2IO.Read.DEAD_LETTER - Contains all PCollection of HealthcareIOError message IDs which failed to be fetched from the HL7v2 store, with error message and stacktrace.
See Also:

Serialized Form

- Nested Class Summary
  
  Nested Classes
  Modifier and Type Class Description
  
  static class HL7v2IO.Read.FetchHL7v2Message.HL7v2MessageGetFn
  DoFn for fetching messages from the HL7v2 store with error handling.
- Field Summary
  - Fields inherited from class org.apache.beam.sdk.transforms.PTransform
    name, resourceHints
- Constructor Summary
  
  Constructors
  Constructor Description
  
  FetchHL7v2Message()
  Instantiates a new Fetch HL7v2 message DoFn.
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  HL7v2IO.Read.Result expand(org.apache.beam.sdk.values.PCollection<java.lang.String> msgIds)
  - Methods inherited from class org.apache.beam.sdk.transforms.PTransform
    compose, compose, getAdditionalInputs, getDefaultOutputCoder, getDefaultOutputCoder, getDefaultOutputCoder, getKindString, getName, getResourceHints, populateDisplayData, setResourceHints, toString, validate, validate
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - FetchHL7v2Message
```
public FetchHL7v2Message()
```
    Instantiates a new Fetch HL7v2 message DoFn.
- Method Detail
  - expand
```
public HL7v2IO.Read.Result expand(org.apache.beam.sdk.values.PCollection<java.lang.String> msgIds)
```
    Specified by:
    
    expand in class org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PCollection<java.lang.String>,HL7v2IO.Read.Result>