RequestPeerInformationCache (drasyl: General-Purpose Overlay Network Framework - Core Package 0.3.0 API)

java.lang.Object
- org.drasyl.peer.connection.direct.RequestPeerInformationCache

```
public class RequestPeerInformationCache
extends Object
```
This class caches all peers for which information has been requested. This cache deletes all entries automatically after the time specified in expireTime. This class thus ensures that the same peer is not asked for information too frequently.

Constructor Summary

Constructors
Constructor	Description
`RequestPeerInformationCache(int maximumSize, Duration expireTime)`	Creates a new cache which automatically removes any entry after the duration specified in `expireTime`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

boolean add(CompressedPublicKey publicKey)
Adds publicKey to the cache if it is not already cached.
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - RequestPeerInformationCache
```
public RequestPeerInformationCache(int maximumSize,
                                   Duration expireTime)
```
    Creates a new cache which automatically removes any entry after the duration specified in expireTime. The cache can contain maximum of maximumSize entries. Evicts oldest entries if limit is exceeded.
    
    Parameters:
    
    maximumSize - maximum number of entries cache can contain
    
    expireTime - time after newly added entries will be automatically removed
- Method Detail
  - add
```
public boolean add(CompressedPublicKey publicKey)
```
    Adds publicKey to the cache if it is not already cached.
    
    Parameters:
    
    publicKey - the public key that should be added
    
    Returns:
    
    true if the key was not already cached, otherwise false is returned