ParserStage (OpenNMS 29.0.5 API)

```
public interface ParserStage
```
An individual stage of the token parser. A parser is composed of a sequence of ParserStage objects.

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static class ParserStage.AcceptResult

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`ParserState`	`apply(ParserState state)`	Process the state for this stage and return it so that the next stage can continue processing.
`void`	`setOptional(boolean optional)`	Mark the stage as optional.
`void`	`setTerminal(boolean terminal)`	Mark the stage as terminal, ie.

- Method Detail
  - setOptional
```
void setOptional(boolean optional)
```
    Mark the stage as optional.
    
    Parameters:
    
    optional -
  - setTerminal
```
void setTerminal(boolean terminal)
```
    Mark the stage as terminal, ie. it handles a buffer underflow as successful completion instead of failure.
    
    Parameters:
    
    terminal -
  - apply
```
ParserState apply(ParserState state)
```
    Process the state for this stage and return it so that the next stage can continue processing.