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The Apache Cassandra Project develops a highly scalable second-generation distributed database, bringing together Dynamo's fully distributed design and Bigtable's ColumnFamily-based data model.
/*
*
* 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
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package org.apache.cassandra.db;
import java.nio.ByteBuffer;
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 ClusteringBound openBound(boolean reversed)
{
return ClusteringBound.create(kind.openBoundOfBoundary(reversed), values);
}
public ClusteringBound closeBound(boolean reversed)
{
return ClusteringBound.create(kind.closeBoundOfBoundary(reversed), values);
}
}