ProxyClient (Undertow 1.4.13.Final-SNAPSHOT API)

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All Known Implementing Classes:

LoadBalancingProxyClient, SimpleProxyClientProvider
```
public interface ProxyClient
```
A client that provides connections for the proxy handler. The provided connection is valid for the duration of the current exchange. Note that implementation are required to manage the lifecycle of these connections themselves, generally by registering callbacks on the exchange.

Author:

Stuart Douglas

Nested Class Summary

Nested Classes
Modifier and Type	Interface and Description
`static interface`	`ProxyClient.MaxRetriesProxyTarget`
`static interface`	`ProxyClient.ProxyTarget` An opaque interface that may contain information about the proxy target

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`ProxyClient.ProxyTarget`	`findTarget(HttpServerExchange exchange)` Finds a proxy target for this request, returning null if none can be found.
`void`	`getConnection(ProxyClient.ProxyTarget target, HttpServerExchange exchange, ProxyCallback<ProxyConnection> callback, long timeout, TimeUnit timeUnit)` Gets a proxy connection for the given request.

- Method Detail
  - findTarget
```
ProxyClient.ProxyTarget findTarget(HttpServerExchange exchange)
```
    Finds a proxy target for this request, returning null if none can be found. If this method returns null it means that there is no backend available to handle this request, and it should proceed as normal.
    
    Parameters:
    
    exchange - The exchange
    
    Returns:
    
    The proxy target
  - getConnection
```
void getConnection(ProxyClient.ProxyTarget target,
                   HttpServerExchange exchange,
                   ProxyCallback<ProxyConnection> callback,
                   long timeout,
                   TimeUnit timeUnit)
```
    Gets a proxy connection for the given request.
    
    Parameters:
    
    exchange - The exchange
    
    callback - The callback
    
    timeout - The timeout
    
    timeUnit - Time unit for the timeout

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