Package org.apache.flink.connector.testframe.external

Interface ExternalSystemDataReader<T>

Type Parameters:
T - Type of the consuming record
All Superinterfaces:
AutoCloseable
@Experimental public interface ExternalSystemDataReader<T> extends AutoCloseable
A data reader for consuming records from an external system.

  • Method Summary

    Modifier and Type
    Method
    Description
    List<T>
    poll(Duration timeout)
    Poll a batch of records from external system.

    Methods inherited from interface java.lang.AutoCloseable

    close

  • Method Details

    • poll

      List<T> poll(Duration timeout)
      Poll a batch of records from external system.

      Test cases will keep invoking this method until expected records have been polled, so it's not necessary to fetch all records in one poll, but records should not be duplicated across multiple invocations.

      Parameters:
      timeout - The maximum time to block