java / expert
Snippet
Runtime Cache Selection with Custom CacheResolver
While @Cacheable usually targets a static cache name, CacheResolver allows dynamic determination of the cache at runtime. This is critical for multi-tenant applications where each tenant must have isolated cache storage.
snippet.java
java
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public class TenantCacheResolver extends AbstractCacheResolver {public TenantCacheResolver(CacheManager cacheManager) {super(cacheManager);}@Overrideprotected Collection<String> getCacheNames(CacheOperationInvocationContext<?> context) {String tenantId = TenantContext.getTenantId();return Collections.singletonList("cache_" + tenantId);}}
spring
Breakdown
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extends AbstractCacheResolver
Inherits base functionality for resolving caches via a CacheManager.
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getCacheNames(CacheOperationInvocationContext<?> context)
Exposes metadata about the method call (arguments, target) to decide which cache to use.
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return Collections.singletonList("cache_" + tenantId);
Dynamically constructs the cache name based on the current execution context.