How to use

copyOf

method

in

org.apache.beam.vendor.guava.v20_0.com.google.common.collect.ImmutableList

@Override
public Iterable<ValueT> read() {
 try {
  Iterable<ValueT> result =
    flinkStateBackend
      .getPartitionedState(
        namespace.stringKey(), StringSerializer.INSTANCE, flinkStateDescriptor)
      .values();
  return result != null ? ImmutableList.copyOf(result) : Collections.emptyList();
 } catch (Exception e) {
  throw new RuntimeException("Error get map state values.", e);
 }
}

@Override
public Iterable<KeyT> read() {
 try {
  Iterable<KeyT> result =
    flinkStateBackend
      .getPartitionedState(
        namespace.stringKey(), StringSerializer.INSTANCE, flinkStateDescriptor)
      .keys();
  return result != null ? ImmutableList.copyOf(result) : Collections.emptyList();
 } catch (Exception e) {
  throw new RuntimeException("Error get map state keys.", e);
 }
}

@Override
public Iterable<T> read() {
 try {
  Iterable<T> result =
    flinkStateBackend
      .getPartitionedState(
        namespace.stringKey(), StringSerializer.INSTANCE, flinkStateDescriptor)
      .keys();
  return result != null ? ImmutableList.copyOf(result) : Collections.emptyList();
 } catch (Exception e) {
  throw new RuntimeException("Error read from state.", e);
 }
}

  };
 return result != null ? ImmutableList.copyOf(result) : Collections.emptyList();
} catch (Exception e) {
 throw new RuntimeException("Error reading state.", e);