コード例 #1
0
  /** Create a populated tree, delete all records, then begin to insert again. */
  private void setupWrittenByCompression(Database db) throws DatabaseException {
    setStepwiseStart();

    DatabaseEntry key = new DatabaseEntry();
    DatabaseEntry data = new DatabaseEntry();

    /* Populate a tree so it grows to 2 levels, with 2 BINs. */
    for (int i = 0; i < 10; i++) {
      IntegerBinding.intToEntry(i, key);
      IntegerBinding.intToEntry(i, data);
      assertEquals(OperationStatus.SUCCESS, db.put(null, key, data));
    }

    Trace.trace(DbInternal.getEnvironmentImpl(env), "After inserts");
    env.checkpoint(FORCE_CONFIG);
    if (DEBUG) {
      System.out.println(db.getStats(new StatsConfig()));
    }

    /* Now delete all of 1 BIN. */
    for (int i = 0; i < 5; i++) {
      IntegerBinding.intToEntry(i, key);
      assertEquals(OperationStatus.SUCCESS, db.delete(null, key));
    }

    /* Compress, removing a BIN. */
    env.compress();
    if (DEBUG) {
      System.out.println("After compress");
      System.out.println(db.getStats(new StatsConfig()));
    }

    /* Checkpoint again. */
    env.checkpoint(FORCE_CONFIG);
  }
コード例 #2
0
ファイル: JEMBeanHelper.java プロジェクト: nologic/nabs
  /**
   * Helper to get statistics for a given database.
   *
   * @param params operation parameters
   * @return DatabaseStats object
   */
  private DatabaseStats getDatabaseStats(Environment targetEnv, Object[] params)
      throws IllegalArgumentException, DatabaseException {

    if ((params == null) || (params.length < 3)) {
      return null;
    }
    String dbName = (String) params[2];

    Database db = null;
    try {
      DatabaseConfig dbConfig = new DatabaseConfig();
      dbConfig.setReadOnly(true);
      DbInternal.setUseExistingConfig(dbConfig, true);
      db = targetEnv.openDatabase(null, dbName, dbConfig);
      return db.getStats(getStatsConfig(params));
    } finally {
      if (db != null) {
        db.close();
      }
    }
  }