code: /*
   * 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 org.apache.skywalking.oap.server.storage.plugin.jdbc;
  
  /**
   * SQLBuilder
   */
  public class SQLBuilder {
      private static final String LINE_END = System.lineSeparator();
  
      private final StringBuilder text;
  
      public SQLBuilder() {
          text = new StringBuilder();
      }
  
      public SQLBuilder(String initText) {
          text = new StringBuilder(initText);
      }
  
      public SQLBuilder append(String fragment) {
          text.append(fragment);
          return this;
      }
  
      public SQLBuilder appendLine(String line) {
          text.append(line).append(LINE_END);
          return this;
      }
  
      @Override
      public String toString() {
          return text.toString();
      }
  }
  