/*
 * Druid - a distributed column store.
 * Copyright 2012 - 2015 Metamarkets Group Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.druid.query.metadata.metadata;

/**
 */
public class NoneColumnIncluderator implements ColumnIncluderator
{
  @Override
  public boolean include(String columnName)
  {
    return false;
  }

  @Override
  public byte[] getCacheKey()
  {
    return NONE_CACHE_PREFIX;
  }
}
