org.springframework.cloud.context.scope

Class StandardScopeCache

java.lang.Object

org.springframework.cloud.context.scope.StandardScopeCache

All Implemented Interfaces:

ScopeCache

public class StandardScopeCache
extends Object
implements ScopeCache

A simple cache implementation backed by a concurrent map.

Author:

Dave Syer

Constructor Summary

Constructors

Constructor and Description
StandardScopeCache()

Method Summary

Modifier and Type	Method and Description
Collection<Object>	clear() Clears the cache and returns all objects in an unmodifiable collection.
Object	get(String name) Gets the named object from the cache.
Object	put(String name, Object value) Put a value in the cache if the key is not already used.
Object	remove(String name) Removes the object with this name from the cache.

Methods inherited from class java.lang.Object

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

Constructor Detail

StandardScopeCache

public StandardScopeCache()

Method Detail

remove

public Object remove(String name)

Description copied from interface: ScopeCache

Removes the object with this name from the cache.

Specified by:

remove in interface ScopeCache

Parameters:

name - The object name.

Returns:

The object removed, or null if there was none.

clear

public Collection<Object> clear()

Description copied from interface: ScopeCache

Clears the cache and returns all objects in an unmodifiable collection.

Specified by:

clear in interface ScopeCache

Returns:

All objects stored in the cache.

get

public Object get(String name)

Description copied from interface: ScopeCache

Gets the named object from the cache.

Specified by:

get in interface ScopeCache

Parameters:

name - The name of the object.

Returns:

The object with that name, or null if there is none.

put

public Object put(String name,
                  Object value)

Description copied from interface: ScopeCache

Put a value in the cache if the key is not already used. If one is already present with the name provided, it is not replaced, but is returned to the caller.

Specified by:

put in interface ScopeCache

Parameters:

name - The key.

value - The new candidate value.

Returns:

The value that is in the cache at the end of the operation.