/**
* 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.objectinspector.primitive;
import org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector;
import org.apache.hadoop.hive.serde2.typeinfo.HiveDecimalUtils;
import org.apache.hadoop.hive.serde2.typeinfo.PrimitiveTypeInfo;
/**
* An AbstractPrimitiveObjectInspector is based on
* ObjectInspectorUtils.PrimitiveTypeEntry.
*/
public abstract class AbstractPrimitiveObjectInspector implements
PrimitiveObjectInspector {
protected PrimitiveTypeInfo typeInfo;
protected AbstractPrimitiveObjectInspector() {
super();
}
/**
* Construct a AbstractPrimitiveObjectInspector.
*/
protected AbstractPrimitiveObjectInspector(PrimitiveTypeInfo typeInfo) {
this.typeInfo = typeInfo;
}
/**
* Return the associated Java primitive class for this primitive
* ObjectInspector.
*/
@Override
public Class<?> getJavaPrimitiveClass() {
return typeInfo.getPrimitiveJavaClass();
}
/**
* Return the associated primitive category for this primitive
* ObjectInspector.
*/
@Override
public PrimitiveCategory getPrimitiveCategory() {
return typeInfo.getPrimitiveCategory();
}
/**
* Return the associated primitive Writable class for this primitive
* ObjectInspector.
*/
@Override
public Class<?> getPrimitiveWritableClass() {
return typeInfo.getPrimitiveWritableClass();
}
/**
* Return the associated category this primitive ObjectInspector.
*/
@Override
public Category getCategory() {
return Category.PRIMITIVE;
}
/**
* Return the type name for this primitive ObjectInspector.
*/
@Override
public String getTypeName() {
return typeInfo.getTypeName();
}
@Override
public PrimitiveTypeInfo getTypeInfo() {
return this.typeInfo;
}
/**
* Default implementation. Maybe overridden by exact types.
*/
@Override
public int precision() {
return HiveDecimalUtils.getPrecisionForType(typeInfo);
}
/**
* Default implementation. Maybe overridden by exact types.
*/
@Override
public int scale() {
return HiveDecimalUtils.getScaleForType(typeInfo);
}
}