NdJsonpSerializable (java-client 2.8.0 API)

All Known Implementing Classes:

BulkOperation, BulkRequest, CreateOperation, IndexOperation, MsearchRequest, MsearchTemplateRequest, RequestItem, RequestItem, UpdateOperation
```
public interface NdJsonpSerializable
```
Marks a class a being serialized as nd-json (e.g. bulk requests).
If an item returned by the iterator implements NdJsonpSerializable, it should also be output as nd-json. This allows flattening nested structures (e.g. a bulk index operation and its document). However, if this object returns itself as part of the iterator values, it then has to be serialized and not flattened again (which would lead to an infinite loop).

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  java.util.Iterator<?> _serializables()

- Method Detail
  - _serializables
```
java.util.Iterator<?> _serializables()
```