content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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.datastax.oss.driver.api.core.metadata.schema;
  
  import com.datastax.oss.driver.api.core.type.UserDefinedType;
  import edu.umd.cs.findbugs.annotations.NonNull;
  
  /**
   * Convenience class for listener implementations that that don't need to override all methods (all
   * methods in this class are empty).
   */
  public class SchemaChangeListenerBase implements SchemaChangeListener {
  
    @Override
    public void onKeyspaceCreated(@NonNull KeyspaceMetadata keyspace) {
      // nothing to do
    }
  
    @Override
    public void onKeyspaceDropped(@NonNull KeyspaceMetadata keyspace) {
      // nothing to do
    }
  
    @Override
    public void onKeyspaceUpdated(
        @NonNull KeyspaceMetadata current, @NonNull KeyspaceMetadata previous) {
      // nothing to do
    }
  
    @Override
    public void onTableCreated(@NonNull TableMetadata table) {
      // nothing to do
    }
  
    @Override
    public void onTableDropped(@NonNull TableMetadata table) {
      // nothing to do
    }
  
    @Override
    public void onTableUpdated(@NonNull TableMetadata current, @NonNull TableMetadata previous) {
      // nothing to do
    }
  
    @Override
    public void onUserDefinedTypeCreated(@NonNull UserDefinedType type) {
      // nothing to do
    }
  
    @Override
    public void onUserDefinedTypeDropped(@NonNull UserDefinedType type) {
      // nothing to do
    }
  
    @Override
    public void onUserDefinedTypeUpdated(
        @NonNull UserDefinedType current, @NonNull UserDefinedType previous) {
      // nothing to do
    }
  
    @Override
    public void onFunctionCreated(@NonNull FunctionMetadata function) {
      // nothing to do
    }
  
    @Override
    public void onFunctionDropped(@NonNull FunctionMetadata function) {
      // nothing to do
    }
  
    @Override
    public void onFunctionUpdated(
        @NonNull FunctionMetadata current, @NonNull FunctionMetadata previous) {
      // nothing to do
    }
  
    @Override
    public void onAggregateCreated(@NonNull AggregateMetadata aggregate) {
      // nothing to do
    }
  
    @Override
    public void onAggregateDropped(@NonNull AggregateMetadata aggregate) {
      // nothing to do
    }
  
    @Override
    public void onAggregateUpdated(
        @NonNull AggregateMetadata current, @NonNull AggregateMetadata previous) {
      // nothing to do
    }
  
    @Override
    public void onViewCreated(@NonNull ViewMetadata view) {
      // nothing to do
    }
  
    @Override
    public void onViewDropped(@NonNull ViewMetadata view) {
      // nothing to do
    }
  
    @Override
    public void onViewUpdated(@NonNull ViewMetadata current, @NonNull ViewMetadata previous) {
      // nothing to do
    }
  
    @Override
    public void close() throws Exception {
      // nothing to do
    }
  }
  