com.amazonaws.util

Class NullResponseMetadataCache

java.lang.Object

com.amazonaws.util.NullResponseMetadataCache

All Implemented Interfaces:

MetadataCache

public class NullResponseMetadataCache
extends Object
implements MetadataCache

No-op response metadata cache used when a client instance is configured without response metadata caching enabled.

Constructor Summary

Constructors

Constructor and Description
NullResponseMetadataCache()

Method Summary

Modifier and Type	Method and Description
void	add(Object obj, ResponseMetadata metadata) Adds a new entry to this cache, possibly evicting the oldest entry if the cache is at its size limit.
ResponseMetadata	get(Object obj) Returns the response metadata associated with the specified object, or null if no metadata is associated with that object.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NullResponseMetadataCache

public NullResponseMetadataCache()

Method Detail

add

public void add(Object obj,
                ResponseMetadata metadata)

Description copied from interface: MetadataCache

Adds a new entry to this cache, possibly evicting the oldest entry if the cache is at its size limit.

Specified by:

add in interface MetadataCache

Parameters:

obj - The key by which to store the metadata.

metadata - The metadata for this entry.

get

public ResponseMetadata get(Object obj)

Description copied from interface: MetadataCache

Returns the response metadata associated with the specified object, or null if no metadata is associated with that object.

Specified by:

get in interface MetadataCache

Parameters:

obj - The key by which the desired metadata is stored.

Returns:

The response metadata associated with the given object key, otherwise null if no metadata is associated with that object.