Examples of net.sourceforge.jtds.jdbc.cache.SimpleLRUCache

      if (extractTable) {
        SQLParser parser = new SQLParser(sql, paramList, connection);
        return parser.parse(extractTable);
      }


        SimpleLRUCache cache = getCache(connection);


        SQLCacheKey cacheKey = new SQLCacheKey(sql, connection);


        // By not synchronizing on the cache, we're admitting that the possibility of multiple
        // parses of the same statement can occur.  However, it is 1) unlikely under normal
        // usage, and 2) harmless to the cache.  By avoiding a synchronization block around
        // the get()-parse()-put(), we reduce the contention greatly in the nominal case.
        CachedSQLQuery cachedQuery = (CachedSQLQuery) cache.get(cacheKey);
        if (cachedQuery == null) {
            // Parse and cache SQL
            SQLParser parser = new SQLParser(sql, paramList, connection);
            cachedQuery = new CachedSQLQuery(parser.parse(extractTable),
                    paramList);
            cache.put(cacheKey, cachedQuery);
        } else {
            // Create full ParamInfo objects out of cached object
            final int length = (cachedQuery.paramNames == null)
                    ? 0 : cachedQuery.paramNames.length;
            for (int i = 0; i < length; i++) {

    private synchronized static SimpleLRUCache getCache(ConnectionJDBC2 connection) {
        if (cache == null) {
            int maxStatements = connection.getMaxStatements();
            maxStatements = Math.max(0, maxStatements);
            maxStatements = Math.min(1000, maxStatements);
            cache = new SimpleLRUCache(maxStatements);
        }
        return cache;
    }

Examples of net.sourceforge.jtds.jdbc.cache.SimpleLRUCache

Related Classes of net.sourceforge.jtds.jdbc.cache.SimpleLRUCache