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PathRepositoryCache
class and its supporting classes provide a standard caching mechanism for path-based repositories.
See:
Description
Interface Summary | |
---|---|
CacheStatistics | This interface provides access to statistics for an individual workspace cache. |
PathCachePolicy | The provides a method for selectively allowing or disallowing nodes to be cached based on their size, volatility, or any other factor that can be determined for the node. |
WorkspaceCache | The basic contract for a workspace-level cache of paths to the nodes stored at that path. |
Class Summary | |
---|---|
DefaultCacheStatistics | Default, thread-safe implementation of CacheStatistics that uses AtomicLongs as counters for the
statistics. |
InMemoryWorkspaceCache | Implementation of WorkspaceCache that stores all nodes in-memory. |
InMemoryWorkspaceCache.InMemoryCachePolicy | Trivial path cache policy implementation that caches all nodes in an in-memory cache. |
NoCachePolicy | Trivial path cache policy implementation that performs no caching at all |
PathRepositoryCache | The repository-source level cache of workspace names to workspace caches . |
The PathRepositoryCache
class and its supporting classes provide a standard caching mechanism for path-based repositories. Users of any path repository
based on AbstractPathRepositorySource
can call AbstractPathRepositorySource.setCachePolicy(PathCachePolicy)
to
configure the caching for that repository. This method can be invoked at run-time to modify the cache properties of an in-use repository.
Each AbstractPathRepositorySource
has a local instance of PathRepositoryCache
that reads the PathCachePolicy
for the source and uses it to create instances of
WorkspaceCache
for each workspace in the repository. When a workspace cache instance is requested for the first time from the PathRepositoryCache#getCache(String)
method,
an instance of the class is created using the no-argument constructor for the class and WorkspaceCache#initialize(PathCachePolicy, String)
is called with the current cache policy.
When the cache policy is changed
on the source, the existing PathRepositoryCache
is closed
and a new path repository cache is created.
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