org.apache.hadoop.hive.serde2.lazybinary.LazyBinaryPrimitive Maven / Gradle / Ivy
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* 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.hive.serde2.lazybinary;
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector;
import org.apache.hadoop.io.Writable;
/**
* Defines a LazyBinaryPrimitive.
*
* data will be initialized to corresponding types in different LazyBinary
* primitive classes. For example, data will be a BooleanWritable in the
* LazyBinaryBoolean class.
*
* There is no null flag any more,
*
*/
public abstract class LazyBinaryPrimitive
extends LazyBinaryObject {
LazyBinaryPrimitive(OI oi) {
super(oi);
}
LazyBinaryPrimitive(LazyBinaryPrimitive copy) {
super(copy.oi);
}
T data;
/**
* Returns the primitive object represented by this LazyBinaryObject. This is
* useful because it can make sure we have "null" for null objects.
*/
@Override
public Object getObject() {
return data;
}
public T getWritableObject() {
return data;
}
@Override
public String toString() {
return data.toString();
}
@Override
public int hashCode() {
return data == null ? 0 : data.hashCode();
}
@Override
public boolean equals(Object obj) {
if (!(obj instanceof LazyBinaryPrimitive)) {
return false;
}
if (data == obj) {
return true;
}
if (data == null || obj == null) {
return false;
}
return data.equals(((LazyBinaryPrimitive) obj).getWritableObject());
}
}