org.apache.hudi.org.apache.hadoop.hbase.types.RawFloat 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.Bytes;
import org.apache.hadoop.hbase.util.Order;
import org.apache.hadoop.hbase.util.PositionedByteRange;
import org.apache.yetus.audience.InterfaceAudience;
/**
* An {@code DataType} for interacting with values encoded using
* {@link Bytes#putFloat(byte[], int, float)}. Intended to make it easier to
* transition away from direct use of {@link Bytes}.
* @see Bytes#putFloat(byte[], int, float)
* @see Bytes#toFloat(byte[])
*/
@InterfaceAudience.Public
public class RawFloat implements DataType {
@Override
public boolean isOrderPreserving() {
return false;
}
@Override
public Order getOrder() {
return null;
}
@Override
public boolean isNullable() {
return false;
}
@Override
public boolean isSkippable() {
return true;
}
@Override
public int encodedLength(Float val) {
return Bytes.SIZEOF_FLOAT;
}
@Override
public Class encodedClass() {
return Float.class;
}
@Override
public int skip(PositionedByteRange src) {
src.setPosition(src.getPosition() + Bytes.SIZEOF_FLOAT);
return Bytes.SIZEOF_FLOAT;
}
@Override
public Float decode(PositionedByteRange src) {
float val = Bytes.toFloat(src.getBytes(), src.getOffset() + src.getPosition());
skip(src);
return val;
}
@Override
public int encode(PositionedByteRange dst, Float val) {
Bytes.putFloat(dst.getBytes(), dst.getOffset() + dst.getPosition(), val);
return skip(dst);
}
/**
* Read a {@code float} value from the buffer {@code buff}.
*/
public float decodeFloat(byte[] buff, int offset) {
return Bytes.toFloat(buff, offset);
}
/**
* Write instance {@code val} into buffer {@code buff}.
*/
public int encodeFloat(byte[] buff, int offset, float val) {
return Bytes.putFloat(buff, offset, val);
}
}