io.ebeaninternal.server.cache.DefaultServerQueryCache Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of ebean Show documentation

composite of common runtime dependencies for all platforms

There is a newer version: 15.10.0

package io.ebeaninternal.server.cache;

import io.ebean.cache.QueryCacheEntry;
import io.ebean.cache.QueryCacheEntryValidate;

/**
 * Server cache for query caching.
 * 
 * Entries in this cache contain QueryCacheEntry and we need to additionally
 * validate the entries when hit for changes to dependent tables.
 * 
 */
public class DefaultServerQueryCache extends DefaultServerCache {

  private final QueryCacheEntryValidate queryCacheEntryValidate;

  public DefaultServerQueryCache(DefaultServerCacheConfig config) {
    super(config);
    this.queryCacheEntryValidate = config.getQueryCacheEntryValidate();
  }

  @Override
  protected Object unwrapEntry(CacheEntry entry) {
    return ((QueryCacheEntry) entry.getValue()).getValue();
  }

  @Override
  protected CacheEntry getCacheEntry(Object id) {
    Object key = key(id);
    CacheEntry entry = map.get(key);
    if (entry == null) {
      return null;
    }
    QueryCacheEntry value = (QueryCacheEntry) entry.getValue();
    if (!queryCacheEntryValidate.isValid(value)) {
      map.remove(key);
      removeCount.increment();
      return null;
    }
    return entry;
  }
}