content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * 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 com.alibaba.druid.filter.stat;
  
  public class MergeStatFilter extends StatFilter {
      public MergeStatFilter() {
          super.setMergeSql(true);
      }
  
      @Override
      public boolean isWrapperFor(Class<?> iface) {
          return iface == MergeStatFilter.class || iface == StatFilter.class;
      }
  
      @SuppressWarnings("unchecked")
      public <T> T unwrap(Class<T> iface) {
          if (iface == MergeStatFilter.class || iface == StatFilter.class) {
              return (T) this;
          }
          return null;
      }
  }
  