| /* |
| * |
| * 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.db; |
| |
| import java.nio.ByteBuffer; |
| |
| import org.apache.cassandra.utils.ByteBufferUtil; |
| import org.apache.cassandra.utils.memory.AbstractAllocator; |
| |
| /** |
| * The threshold between two different ranges, i.e. a shortcut for the combination of two ClusteringBounds -- one |
| * specifying the end of one of the ranges, and its (implicit) complement specifying the beginning of the other. |
| */ |
| public class ClusteringBoundary extends ClusteringBoundOrBoundary |
| { |
| protected ClusteringBoundary(Kind kind, ByteBuffer[] values) |
| { |
| super(kind, values); |
| } |
| |
| public static ClusteringBoundary create(Kind kind, ByteBuffer[] values) |
| { |
| assert kind.isBoundary(); |
| return new ClusteringBoundary(kind, values); |
| } |
| |
| @Override |
| public ClusteringBoundary invert() |
| { |
| return create(kind().invert(), values); |
| } |
| |
| @Override |
| public ClusteringBoundary copy(AbstractAllocator allocator) |
| { |
| return (ClusteringBoundary) super.copy(allocator); |
| } |
| |
| public ClusteringPrefix minimize() |
| { |
| if (!ByteBufferUtil.canMinimize(values)) |
| return this; |
| return new ClusteringBoundary(kind, ByteBufferUtil.minimizeBuffers(values)); |
| } |
| |
| public ClusteringBound openBound(boolean reversed) |
| { |
| return ClusteringBound.create(kind.openBoundOfBoundary(reversed), values); |
| } |
| |
| public ClusteringBound closeBound(boolean reversed) |
| { |
| return ClusteringBound.create(kind.closeBoundOfBoundary(reversed), values); |
| } |
| } |