org.apache.hadoop.hive.serde2.objectinspector
Interface PrimitiveObjectInspector

All Superinterfaces:

Cloneable, ObjectInspector

All Known Subinterfaces:

BinaryObjectInspector, BooleanObjectInspector, ByteObjectInspector, DoubleObjectInspector, FloatObjectInspector, IntObjectInspector, LongObjectInspector, SettableBinaryObjectInspector, SettableBooleanObjectInspector, SettableByteObjectInspector, SettableDoubleObjectInspector, SettableFloatObjectInspector, SettableIntObjectInspector, SettableLongObjectInspector, SettableShortObjectInspector, SettableStringObjectInspector, SettableTimestampObjectInspector, ShortObjectInspector, StringObjectInspector, TimestampObjectInspector, VoidObjectInspector

All Known Implementing Classes:

AbstractPrimitiveJavaObjectInspector, AbstractPrimitiveLazyObjectInspector, AbstractPrimitiveObjectInspector, AbstractPrimitiveWritableObjectInspector, JavaBinaryObjectInspector, JavaBooleanObjectInspector, JavaByteObjectInspector, JavaDoubleObjectInspector, JavaFloatObjectInspector, JavaIntObjectInspector, JavaLongObjectInspector, JavaShortObjectInspector, JavaStringObjectInspector, JavaTimestampObjectInspector, JavaVoidObjectInspector, LazyBinaryObjectInspector, LazyBooleanObjectInspector, LazyByteObjectInspector, LazyDoubleObjectInspector, LazyFloatObjectInspector, LazyIntObjectInspector, LazyLongObjectInspector, LazyShortObjectInspector, LazyStringObjectInspector, LazyTimestampObjectInspector, LazyVoidObjectInspector, WritableBinaryObjectInspector, WritableBooleanObjectInspector, WritableByteObjectInspector, WritableConstantBooleanObjectInspector, WritableConstantByteObjectInspector, WritableConstantDoubleObjectInspector, WritableConstantFloatObjectInspector, WritableConstantIntObjectInspector, WritableConstantLongObjectInspector, WritableConstantShortObjectInspector, WritableConstantStringObjectInspector, WritableConstantTimestampObjectInspector, WritableDoubleObjectInspector, WritableFloatObjectInspector, WritableIntObjectInspector, WritableLongObjectInspector, WritableShortObjectInspector, WritableStringObjectInspector, WritableTimestampObjectInspector, WritableVoidObjectInspector

public interface PrimitiveObjectInspector
extends ObjectInspector

PrimitiveObjectInspector.

Nested Class Summary

static class

PrimitiveObjectInspector.PrimitiveCategory The primitive types supported by Hive.

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.
Class<?>	getJavaPrimitiveClass() Get the Java Primitive class which is the return type of getJavaPrimitiveObject().
PrimitiveObjectInspector.PrimitiveCategory	getPrimitiveCategory() Get the primitive category of the PrimitiveObjectInspector.
Object	getPrimitiveJavaObject(Object o) Get the Java Primitive object.
Class<?>	getPrimitiveWritableClass() Get the Primitive Writable class which is the return type of getPrimitiveWritableObject() and copyToPrimitiveWritableObject().
Object	getPrimitiveWritableObject(Object o) Return the data in an instance of primitive writable Object.
boolean	preferWritable() Whether the ObjectInspector prefers to return a Primitive Writable Object instead of a Primitive Java Object.

Methods inherited from interface org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector

getCategory, getTypeName

Method Detail

getPrimitiveCategory

PrimitiveObjectInspector.PrimitiveCategory getPrimitiveCategory()

Get the primitive category of the PrimitiveObjectInspector.

getPrimitiveWritableClass

Class<?> getPrimitiveWritableClass()

Get the Primitive Writable class which is the return type of getPrimitiveWritableObject() and copyToPrimitiveWritableObject().

getPrimitiveWritableObject

Object getPrimitiveWritableObject(Object o)

Return the data in an instance of primitive writable Object. If the Object is already a primitive writable Object, just return o.

getJavaPrimitiveClass

Class<?> getJavaPrimitiveClass()

Get the Java Primitive class which is the return type of getJavaPrimitiveObject().

getPrimitiveJavaObject

Object getPrimitiveJavaObject(Object o)

Get the Java Primitive object.

copyObject

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. If the Object is a Primitive Java Object, we just return the parameter since Primitive Java Object is immutable.

preferWritable

boolean preferWritable()

Whether the ObjectInspector prefers to return a Primitive Writable Object instead of a Primitive Java Object. This can be useful for determining the most efficient way to getting data out of the Object.