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.sa;
  
  import java.nio.Buffer;
  import java.nio.ByteBuffer;
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.cassandra.index.sasi.disk.OnDiskIndexBuilder.Mode;
  import org.apache.cassandra.index.sasi.disk.TokenTreeBuilder;
  import org.apache.cassandra.db.marshal.AbstractType;
  
  public abstract class SA<T extends Buffer>
  {
      protected final AbstractType<?> comparator;
      protected final Mode mode;
  
      protected final List<Term<T>> terms = new ArrayList<>();
      protected int charCount = 0;
  
      public SA(AbstractType<?> comparator, Mode mode)
      {
          this.comparator = comparator;
          this.mode = mode;
      }
  
      public Mode getMode()
      {
          return mode;
      }
  
      public void add(ByteBuffer termValue, TokenTreeBuilder tokens)
      {
          Term<T> term = getTerm(termValue, tokens);
          terms.add(term);
          charCount += term.length();
      }
  
      public abstract TermIterator finish();
  
      protected abstract Term<T> getTerm(ByteBuffer termValue, TokenTreeBuilder tokens);
  }
  