ExternPolicy (documentapi 7.559.12 API)

java.lang.Object
- com.yahoo.documentapi.messagebus.protocol.ExternPolicy

All Implemented Interfaces:

DocumentProtocolRoutingPolicy, com.yahoo.messagebus.routing.RoutingPolicy
```
public class ExternPolicy
extends Object
implements DocumentProtocolRoutingPolicy
```
This policy implements the necessary logic to communicate with an external Vespa application and resolve its list of recipients using that other application's slobrok servers.

Author:

Simon Thoresen Hult

Constructor Summary

Constructors
Constructor Description

ExternPolicy(String arg)
Constructs a new instance of this policy.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`destroy()`
`String`	`getError()`	This is a safety mechanism to allow the constructor to fail and signal that it can not be used.
`com.yahoo.jrt.slobrok.api.Mirror`	`getMirror()`	Returns the slobrok mirror used by this policy to resolve external recipients.
`void`	`merge(com.yahoo.messagebus.routing.RoutingContext ctx)`
`void`	`select(com.yahoo.messagebus.routing.RoutingContext ctx)`

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

- Constructor Detail
  - ExternPolicy
```
public ExternPolicy(String arg)
```
    Constructs a new instance of this policy. The argument given is the connection spec to the slobrok to use for resolving recipients, as well as the pattern to use when querying. This constructor does _not_ wait for the mirror to become ready.
    
    Parameters:
    
    arg - The slobrok connection spec.
- Method Detail
  - getError
```
public String getError()
```
    This is a safety mechanism to allow the constructor to fail and signal that it can not be used.
    
    Returns:
    
    The error string, or null if no error.
  - getMirror
```
public com.yahoo.jrt.slobrok.api.Mirror getMirror()
```
    Returns the slobrok mirror used by this policy to resolve external recipients.
    
    Returns:
    
    The external mirror.
  - select
```
public void select(com.yahoo.messagebus.routing.RoutingContext ctx)
```
    Specified by:
    
    select in interface com.yahoo.messagebus.routing.RoutingPolicy
  - merge
```
public void merge(com.yahoo.messagebus.routing.RoutingContext ctx)
```
    Specified by:
    
    merge in interface com.yahoo.messagebus.routing.RoutingPolicy
  - destroy
```
public void destroy()
```
    Specified by:
    
    destroy in interface com.yahoo.messagebus.routing.RoutingPolicy