DNSCache

All Known Implementing Classes:

LRUCache
```
public interface DNSCache
```
Cache for DNS Entries. Implementations must be thread safe.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`DNSMessage`	`get(Question q)`	Request a cached dns response.
`void`	`put(Question q, DNSMessage message)`	Add an an dns answer/response for a given dns question.

- Method Detail
  - put
```
void put(Question q,
         DNSMessage message)
```
    Add an an dns answer/response for a given dns question. Implementations should honor the ttl / receive timestamp.
    
    Parameters:
    
    q - The question.
    
    message - The dns message.
  - get
```
DNSMessage get(Question q)
```
    Request a cached dns response.
    
    Parameters:
    
    q - The dns question.
    
    Returns:
    
    The dns message.