Metadata (SmallRye Stork : Main API classes 1.0.0 API)

java.lang.Object
- io.smallrye.stork.api.Metadata<T>

```
public class Metadata<T extends Enum<T>>
extends Object
```
Service Instance metadata.
This class stores service instance metadata that can be used by the load balancer to select the service instance to use.
Instances of this class are immutable. Modification operations return new instances.
You can creates new instances using the of(Class), of(Class, Map) and with(Enum, Object)methods.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class Metadata.DefaultMetadataKey

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static Metadata`	`empty()`	Returns an empty set of metadata.
`EnumMap<T,Object>`	`getMetadata()`
`static Metadata`	`of(Class<?> key)`	Returns an instance of `Metadata` containing an empty set of values.
`static Metadata`	`of(Class<?> key, Map<?,Object> metadata)`	Returns an instance of `Metadata` containing metadata values.
`Metadata`	`with(T key, Object item)`	Creates a new instance of `Metadata` with the current entries, plus `item`.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - empty
```
public static Metadata empty()
```
    Returns an empty set of metadata.
    
    Returns:
    
    the empty instance
  - of
```
public static Metadata of(Class<?> key,
                          Map<?,Object> metadata)
```
    Returns an instance of Metadata containing metadata values.
    
    Parameters:
    
    metadata - the metadata, must not be null, must not contain null, must not contain multiple objects of the same class
    
    Returns:
    
    the new metadata
  - of
```
public static Metadata of(Class<?> key)
```
    Returns an instance of Metadata containing an empty set of values.
    
    Parameters:
    
    key - the type of metadata, must not be null
    
    Returns:
    
    the new metadata
  - with
```
public Metadata with(T key,
                     Object item)
```
    Creates a new instance of Metadata with the current entries, plus item. If the current set of metadata contains already an instance of the class of item, the value is replaced in the returned Metadata.
    
    Parameters:
    
    item - the metadata to be added, must not be null.
    
    Returns:
    
    the new instance of Metadata
  - getMetadata
```
public EnumMap<T,Object> getMetadata()
```