org.apache.hadoop.hive.serde2.objectinspector.primitive
Class WritableDoubleObjectInspector

java.lang.Object
  extended by org.apache.hadoop.hive.serde2.objectinspector.primitive.AbstractPrimitiveObjectInspector
      extended by org.apache.hadoop.hive.serde2.objectinspector.primitive.AbstractPrimitiveWritableObjectInspector
          extended by org.apache.hadoop.hive.serde2.objectinspector.primitive.WritableDoubleObjectInspector
All Implemented Interfaces:
ObjectInspector, DoubleObjectInspector, SettableDoubleObjectInspector, PrimitiveObjectInspector

public class WritableDoubleObjectInspector
extends AbstractPrimitiveWritableObjectInspector
implements SettableDoubleObjectInspector

A WritableDoubleObjectInspector inspects a DoubleWritable Object.


Nested Class Summary
 
Nested classes/interfaces inherited from interface org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector
PrimitiveObjectInspector.PrimitiveCategory
 
Nested classes/interfaces inherited from interface org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector
ObjectInspector.Category
 
Method Summary
 Object copyObject(Object o)
          Get a copy of the Object in the same class, so the return value can be stored independently of the parameter.
 Object create(double value)
          Create an object with the value.
 double get(Object o)
          Get the double data.
 Object getPrimitiveJavaObject(Object o)
          Get the Java Primitive object.
 Object set(Object o, double value)
          Set the object with the value.
 
Methods inherited from class org.apache.hadoop.hive.serde2.objectinspector.primitive.AbstractPrimitiveWritableObjectInspector
getPrimitiveWritableObject, preferWritable
 
Methods inherited from class org.apache.hadoop.hive.serde2.objectinspector.primitive.AbstractPrimitiveObjectInspector
getCategory, getJavaPrimitiveClass, getPrimitiveCategory, getPrimitiveWritableClass, getTypeName
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector
getJavaPrimitiveClass, getPrimitiveCategory, getPrimitiveWritableClass, getPrimitiveWritableObject, preferWritable
 
Methods inherited from interface org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector
getCategory, getTypeName
 

Method Detail

get

public double get(Object o)
Description copied from interface: DoubleObjectInspector
Get the double data.

Specified by:
get in interface DoubleObjectInspector

copyObject

public Object copyObject(Object o)
Description copied from interface: PrimitiveObjectInspector
Get a copy of the Object in the same class, so the return value can be stored independently of the parameter. If the Object is a Primitive Java Object, we just return the parameter since Primitive Java Object is immutable.

Specified by:
copyObject in interface PrimitiveObjectInspector

getPrimitiveJavaObject

public Object getPrimitiveJavaObject(Object o)
Description copied from interface: PrimitiveObjectInspector
Get the Java Primitive object.

Specified by:
getPrimitiveJavaObject in interface PrimitiveObjectInspector

create

public Object create(double value)
Description copied from interface: SettableDoubleObjectInspector
Create an object with the value.

Specified by:
create in interface SettableDoubleObjectInspector

set

public Object set(Object o,
                  double value)
Description copied from interface: SettableDoubleObjectInspector
Set the object with the value. Return the object that has the new value. In most cases the returned value should be the same as o, but in case o is unmodifiable, this will return a new object with new value.

Specified by:
set in interface SettableDoubleObjectInspector


Copyright © 2009 The Apache Software Foundation