TridentCollector (Storm 2.7.1 API)

All Known Implementing Classes:

AppendCollector, CaptureCollector, FreshCollector, GroupCollector
```
public interface TridentCollector
```
Interface for publishing tuples to a stream and reporting exceptions (to be displayed in Storm UI).
Trident components that have the ability to emit tuples to a stream are passed an instance of this interface.
For example, to emit a new tuple to a stream, you would do something like the following:
```java collector.emit(new Values("a", "b", "c")); ```

See Also:

Stream, Values

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`emit(List<Object> values)`	Emits a tuple to a Stream.
`void`	`flush()`	Flush any buffered tuples (when batching is enabled).
`void`	`reportError(Throwable t)`	Reports an error.

- Method Detail
  - emit
```
void emit(List<Object> values)
```
    Emits a tuple to a Stream.
    
    Parameters:
    
    values - a list of values of which the tuple will be composed
  - flush
```
void flush()
```
    Flush any buffered tuples (when batching is enabled).
  - reportError
```
void reportError(Throwable t)
```
    Reports an error. The corresponding stack trace will be visible in the Storm UI.
    Note that calling this method does not alter the processing of a batch. To explicitly fail a batch and trigger a replay, components should throw FailedException.
    
    Parameters:
    
    t - The instance of the error (Throwable) being reported.