com.aliyun.odps.io.CharWritable 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 com.aliyun.odps.io;
import com.aliyun.odps.data.Char;
/**
* CharWritable 提供了 char 的 {@link Writable} 和 {@link WritableComparable} 的实现
*/
public class CharWritable extends Text {
public CharWritable() {
}
/**
* 根据给定字符串构造 CharWritable
*/
public CharWritable(String value) {
super(value);
}
/**
* 根据给定Char对象构造 CharWritable
*/
public CharWritable(Char charVal) {
this(charVal.getValue());
}
/**
* 返回此 writable 对应的Char对象
*/
public Char get() {
return new Char(toString());
}
/**
* 使用 Char 对象设置 writable 值
*/
public void set(Char chr) {
set(chr.getValue());
}
static { // register this comparator
WritableComparator.define(CharWritable.class, new Text.Comparator(CharWritable.class));
}
}