org.apache.hudi.org.apache.hadoop.hbase.types.OrderedFloat64 Maven / Gradle / Ivy
/**
* 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.hadoop.hbase.types;
import org.apache.hadoop.hbase.util.Order;
import org.apache.hadoop.hbase.util.OrderedBytes;
import org.apache.hadoop.hbase.util.PositionedByteRange;
import org.apache.yetus.audience.InterfaceAudience;
/**
* A {@code double} of 64-bits using a fixed-length encoding. Built on
* {@link OrderedBytes#encodeFloat64(PositionedByteRange, double, Order)}.
*/
@InterfaceAudience.Public
public class OrderedFloat64 extends OrderedBytesBase {
public static final OrderedFloat64 ASCENDING = new OrderedFloat64(Order.ASCENDING);
public static final OrderedFloat64 DESCENDING = new OrderedFloat64(Order.DESCENDING);
protected OrderedFloat64(Order order) {
super(order);
}
@Override
public boolean isNullable() {
return false;
}
@Override
public int encodedLength(Double val) {
return 9;
}
@Override
public Class encodedClass() {
return Double.class;
}
@Override
public Double decode(PositionedByteRange src) {
return OrderedBytes.decodeFloat64(src);
}
@Override
public int encode(PositionedByteRange dst, Double val) {
if (null == val) {
throw new IllegalArgumentException("Null values not supported.");
}
return OrderedBytes.encodeFloat64(dst, val, order);
}
/**
* Read a {@code double} value from the buffer {@code src}.
*/
public double decodeDouble(PositionedByteRange src) {
return OrderedBytes.decodeFloat64(src);
}
/**
* Write instance {@code val} into buffer {@code dst}.
*/
public int encodeDouble(PositionedByteRange dst, double val) {
return OrderedBytes.encodeFloat64(dst, val, order);
}
}