HealthCheckCallback (eureka-client 2.0.5 API)

```
@Deprecated
public interface HealthCheckCallback
```
Deprecated.
Use HealthCheckHandler instead.

Applications can implement this interface and register a callback with the EurekaClient.registerHealthCheckCallback(HealthCheckCallback).
Your callback will be invoked every EurekaInstanceConfig.getLeaseRenewalIntervalInSeconds() if the instance is in InstanceInfo.InstanceStatus.STARTING status, we will delay the callback until the status changes.Returning a false to the checkHealth() method will mark the instance InstanceInfo.InstanceStatus.DOWN with eureka.

Eureka server normally just relies on heartbeats to identify the status of an instance. Application could decide to implement their own healthpage check here or use the built-in jersey resource HealthCheckResource.

Method Summary

All Methods Instance Methods Abstract Methods Deprecated Methods
Modifier and Type	Method	Description
`boolean`	`isHealthy()`	Deprecated. If false, the instance will be marked `InstanceInfo.InstanceStatus.DOWN` with eureka.

- Method Detail
  - isHealthy
```
boolean isHealthy()
```
    Deprecated.
    
    If false, the instance will be marked InstanceInfo.InstanceStatus.DOWN with eureka. If the instance was already marked InstanceInfo.InstanceStatus.DOWN , returning true here will mark the instance back to InstanceInfo.InstanceStatus.UP.
    
    Returns:
    
    true if the call back returns healthy, false otherwise.