SequenceProducer

```
public interface SequenceProducer
```
Interface for an extenal sequence producer. To register a sequence producer, pass an object implementing this interface to ZstdCompressCtx.registerSequenceProducer(SequenceProducer).

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`long`	`createState()`	Allocate the sequence producer state.
`void`	`freeState(long statePointer)`	Free the sequence producer state.
`long`	`getFunctionPointer()`	Returns a pointer to the sequence producer function.

- Method Detail
  - getFunctionPointer
```
long getFunctionPointer()
```
    Returns a pointer to the sequence producer function. This method is called once in ZstdCompressCtx.registerSequenceProducer(SequenceProducer).
    
    Returns:
    
    A function pointer of type ZSTD_sequenceProducer_F *
  - createState
```
long createState()
```
    Allocate the sequence producer state. The returned pointer will be passed to the sequence producer function. This method is called once in ZstdCompressCtx.registerSequenceProducer(SequenceProducer).
    
    Returns:
    
    A void * pointer to the sequence producer state
  - freeState
```
void freeState(long statePointer)
```
    Free the sequence producer state. This method is called when closing the ZstdCompressCtx or registering a different sequence producer.
    
    Parameters:
    
    statePointer - the state pointer to be freed