/*
* Copyright 2008-2010 Amazon Technologies, Inc. or its affiliates.
* Amazon, Amazon.com and Carbonado are trademarks or registered trademarks
* of Amazon Technologies, Inc. or its affiliates. All rights reserved.
*
* Licensed 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 com.taobao.tddl.optimizer.core.datatype;
import java.math.BigInteger;
/**
* @author Brian S O'Neill
*/
class EncodingConstants {
static final byte[] EMPTY_BYTE_ARRAY = new byte[0];
/** Byte to use for null, low ordering */
static final byte NULL_BYTE_LOW = 0;
/** Byte to use for null, high ordering */
static final byte NULL_BYTE_HIGH = (byte) ~NULL_BYTE_LOW;
/** Byte to use for not-null, low ordering */
static final byte NOT_NULL_BYTE_HIGH = (byte) 128;
/** Byte to use for not-null, high ordering */
static final byte NOT_NULL_BYTE_LOW = (byte) ~NOT_NULL_BYTE_HIGH;
/** Byte to terminate variable data encoded for ascending order */
static final byte TERMINATOR = (byte) 1;
static final BigInteger ONE_HUNDRED = BigInteger.valueOf(100);
static final BigInteger ONE_THOUSAND = BigInteger.valueOf(1000);
}