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 org.apache.cassandra.index.sasi.analyzer.filter;
  
  /**
   * Creates a Pipeline object for applying n pieces of logic
   * from the provided methods to the builder in a guaranteed order
   */
  public class FilterPipelineBuilder
  {
      private final FilterPipelineTask<?,?> parent;
      private FilterPipelineTask<?,?> current;
  
      public FilterPipelineBuilder(FilterPipelineTask<?, ?> first)
      {
          this(first, first);
      }
  
      private FilterPipelineBuilder(FilterPipelineTask<?, ?> first, FilterPipelineTask<?, ?> current)
      {
          this.parent = first;
          this.current = current;
      }
  
      public FilterPipelineBuilder add(String name, FilterPipelineTask<?,?> nextTask)
      {
          this.current.setLast(name, nextTask);
          this.current = nextTask;
          return this;
      }
  
      public FilterPipelineTask<?,?> build()
      {
          return this.parent;
      }
  }
  