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.
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  package org.apache.cassandra.index.sasi.conf.view;
  
  import java.nio.ByteBuffer;
  import java.util.Set;
  
  import org.apache.cassandra.index.sasi.SSTableIndex;
  import org.apache.cassandra.index.sasi.disk.OnDiskIndexBuilder;
  import org.apache.cassandra.index.sasi.plan.Expression;
  import org.apache.cassandra.db.marshal.AbstractType;
  
  public interface TermTree
  {
      Set<SSTableIndex> search(Expression e);
  
      int intervalCount();
  
      abstract class Builder
      {
          protected final OnDiskIndexBuilder.Mode mode;
          protected final AbstractType<?> comparator;
          protected ByteBuffer min, max;
  
          protected Builder(OnDiskIndexBuilder.Mode mode, AbstractType<?> comparator)
          {
              this.mode = mode;
              this.comparator = comparator;
          }
  
          public final void add(SSTableIndex index)
          {
              addIndex(index);
  
              min = min == null || comparator.compare(min, index.minTerm()) > 0 ? index.minTerm() : min;
              max = max == null || comparator.compare(max, index.maxTerm()) < 0 ? index.maxTerm() : max;
          }
  
          protected abstract void addIndex(SSTableIndex index);
  
          public abstract TermTree build();
      }
  }
  