MatsClassMapping.Stage (mats-spring RC-0.19.20-RC5-2024-10-21 API)

```
@Target({METHOD,ANNOTATION_TYPE})
@Retention(RUNTIME)
@Documented
public static @interface MatsClassMapping.Stage
```
Each method in the class that shall correspond to a Stage on the Mats endpoint must be annotated with this @Stage annotation. An ordinal must be assigned to each stage, so that Mats knows which order the stages are in - read more about the ordinal number at ordinal(). The initial stage must have the ordinal zero, which also shall be the first stage in the resulting sorted list of Stages (i.e. negative values are not allowed) - this is the Stage which gets incoming messages targeted at the endpointId of this endpoint.

Field Summary

Fields
Modifier and Type Fields Description

static int INITIAL
Constant for 0 (zero), the initial Stage's ordinal.

Optional Element Summary

Optional Elements
Modifier and Type	Optional Element	Description
`java.lang.String`	`concurrency`	A string representing the `concurrency` for the Stage, overriding the concurrency of the Endpoint.
`int`	`ordinal`	The ordinal of this Stage in the sequence of stages of this endpoint - that is, an integer that expresses the relative position of this Stage wrt.
`int`	`value`	Alias for "ordinal", so that if you only need to set the ordinal (which relative position in the sequence of stages this Stage is), you can do so directly: `@Stage(INITIAL)` and `@Stage(3)`.

- Field Detail
  - INITIAL
```
static final int INITIAL
```
    Constant for 0 (zero), the initial Stage's ordinal.
- Element Detail
  - ordinal
```
@AliasFor("value")
int ordinal
```
    The ordinal of this Stage in the sequence of stages of this endpoint - that is, an integer that expresses the relative position of this Stage wrt. to the other stages. The initial Stage must have the ordinal zero, you may use the constant INITIAL. The magnitude of the number does not matter, only the "sort order", so 0, 1, 2 is just as good as 0, 3, 5, which is just as good as 0, 4527890, 4527990 - although one can definitely discuss the relative merits between each approach.
    
    Returns:
    
    the ordinal of this Stage in the sequence of stages of this endpoint.
    
    Default:
    
    -1
- - value
```
@AliasFor("ordinal")
int value
```
    Alias for "ordinal", so that if you only need to set the ordinal (which relative position in the sequence of stages this Stage is), you can do so directly: @Stage(INITIAL) and @Stage(3).
    
    Returns:
    
    the ordinal of this Stage in the sequence of stages of this endpoint.
    
    See Also:
    
    ordinal()
    
    Default:
    
    -1
- - concurrency
```
java.lang.String concurrency
```
    A string representing the concurrency for the Stage, overriding the concurrency of the Endpoint. See MatsClassMapping.concurrency() for more information.
    
    Default:
    
    ""