| /* |
| * 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.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(); |
| } |
| } |