Interface CacheKeyPrefix

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface CacheKeyPrefix

CacheKeyPrefix provides a hook for creating custom prefixes prepended to the actual key stored in Couchbase.

Since:

4.0.0

Author:

Christoph Strobl, Mark Paluch, Michael Nitschinger

Field Summary

Fields

Modifier and Type	Field	Description
static final String	SEPARATOR	Default separator.

Method Summary

Modifier and Type	Method	Description
String	compute(String cacheName)	Compute the prefix for the actual key stored in Couchbase.
static CacheKeyPrefix	prefixed(String prefix)	Creates a CacheKeyPrefix scheme that prefixes cache keys with the given prefix.
static CacheKeyPrefix	simple()	Creates a default CacheKeyPrefix scheme that prefixes cache keys with cacheName followed by double colons.

Field Details

SEPARATOR

static final String SEPARATOR

Default separator.

Since:

2.3

See Also:

• Constant Field Values

Method Details

simple

static CacheKeyPrefix simple()

Creates a default CacheKeyPrefix scheme that prefixes cache keys with cacheName followed by double colons. A cache named myCache will prefix all cache keys with myCache::.

Returns:

the default CacheKeyPrefix scheme.

prefixed

static CacheKeyPrefix prefixed(String prefix)

Creates a CacheKeyPrefix scheme that prefixes cache keys with the given prefix. The prefix is prepended to the cacheName followed by double colons. A prefix cb- with a cache named myCache results in cb-myCache::.

Parameters:

prefix - must not be null.

Returns:

the default CacheKeyPrefix scheme.

Since:

4.0.0

compute

String compute(String cacheName)

Compute the prefix for the actual key stored in Couchbase.

Parameters:

cacheName - will never be null.

Returns:

never null.