RouteDatabase

```
public final class RouteDatabase

                    
```
A blacklist of failed routes to avoid when creating a new connection to a target address. This is used so that OkHttp can learn from its mistakes: if there was a failure attempting to connect to a specific IP address or proxy server, that failure is remembered and alternate routes are preferred.

Method Summary

Modifier and Type	Method	Description
`synchronized void`	`failed(Route failedRoute)`	Records a failure connecting to `{@code failedRoute}`.
`synchronized void`	`connected(Route route)`	Records success connecting to `{@code route}`.
`synchronized boolean`	`shouldPostpone(Route route)`	Returns true if `{@code route}` has failed recently and should be avoided.

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

- Method Detail
  - failed
```
 synchronized void failed(Route failedRoute)
```
    Records a failure connecting to {@code failedRoute}.
  - connected
```
 synchronized void connected(Route route)
```
    Records success connecting to {@code route}.
  - shouldPostpone
```
 synchronized boolean shouldPostpone(Route route)
```
    Returns true if {@code route} has failed recently and should be avoided.