LoadBalancer (SmallRye Stork : Main API classes 2.5.0 API)

```
public interface LoadBalancer
```
Works with a single service name. Provides a single service instance.
Must be non-blocking

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default boolean`	`requiresStrictRecording()`	LoadBalancers often record information of the calls being made with instances they return, be it inflight requests, response time, etc.
`ServiceInstance`	`selectServiceInstance(Collection<ServiceInstance> serviceInstances)`	Select a single `ServiceInstance` from the given list.

- Method Detail
  - selectServiceInstance
```
ServiceInstance selectServiceInstance(Collection<ServiceInstance> serviceInstances)
```
    Select a single ServiceInstance from the given list.
    
    Parameters:
    
    serviceInstances - instances to choose from
    
    Returns:
    
    a ServiceInstance
    
    Throws:
    
    NoServiceInstanceFoundException - if the incoming collection is empty or all the service instances in the collection are deemed invalid for some reason
  - requiresStrictRecording
```
default boolean requiresStrictRecording()
```
    LoadBalancers often record information of the calls being made with instances they return, be it inflight requests, response time, etc.
    These calculations often assume that an operation using a previously selected service instance is marked as started before the next instance selection. This prevents a situation in which multiple parallel invocations of the LoadBalancer return the same service instance (because they have the same input for selection).
    If the load balancer is insusceptible of this problem, this method should return false.
    
    Returns:
    
    true if the selecting service instance should be called atomically with marking the operation as started
    
    See Also:
    
    Service.selectInstanceAndRecordStart(boolean), Service.selectInstanceAndRecordStart(Collection, boolean)