org.apache.hadoop.hive.ql.util
Enum JavaDataModel

java.lang.Object
  java.lang.Enum<JavaDataModel>
      org.apache.hadoop.hive.ql.util.JavaDataModel

All Implemented Interfaces:

Serializable, Comparable<JavaDataModel>

public enum JavaDataModel
extends Enum<JavaDataModel>

Estimation of memory footprint of object

Enum Constant Summary

JAVA32

JAVA64

Field Summary

static int	JAVA32_ARRAY
static int	JAVA32_ARRAY_META
static int	JAVA32_META
static int	JAVA32_OBJECT
static int	JAVA32_REF
static int	JAVA64_ARRAY
static int	JAVA64_ARRAY_META
static int	JAVA64_META
static int	JAVA64_OBJECT
static int	JAVA64_REF
static int	PRIMITIVE_BYTE
static int	PRIMITIVES1
static int	PRIMITIVES2

Method Summary

static int	alignUp(int value, int align)
abstract int	array()
abstract int	arrayList()
static JavaDataModel	get()
abstract int	hashMap(int entry)
abstract int	hashMapEntry()
abstract int	hashSet(int entry)
int	lengthFor(NumDistinctValueEstimator estimator)
int	lengthFor(NumericHistogram histogram)
int	lengthFor(String string)
int	lengthForBooleanArrayOfSize(int length)
int	lengthForByteArrayOfSize(int length)
int	lengthForDateArrayOfSize(int length)
int	lengthForDecimalArrayOfSize(int length)
int	lengthForDoubleArrayOfSize(int length)
int	lengthForIntArrayOfSize(int length)
int	lengthForLongArrayOfSize(int length)
int	lengthForObjectArrayOfSize(int length)
int	lengthForRandom()
int	lengthForStringOfLength(int strLen)
int	lengthForTimestampArrayOfSize(int length)
int	lengthOfDate()
int	lengthOfDecimal()
int	lengthOfTimestamp()
abstract int	linkedHashMap(int entry)
abstract int	linkedList(int entry)
abstract int	memoryAlign()
abstract int	object()
int	primitive1()
int	primitive2()
abstract int	ref()
static int	round(int size)
static JavaDataModel	valueOf(String name) Returns the enum constant of this type with the specified name.
static JavaDataModel[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

JAVA32

public static final JavaDataModel JAVA32

JAVA64

public static final JavaDataModel JAVA64

Field Detail

JAVA32_META

public static final int JAVA32_META

See Also:

Constant Field Values

JAVA32_ARRAY_META

public static final int JAVA32_ARRAY_META

See Also:

Constant Field Values

JAVA32_REF

public static final int JAVA32_REF

See Also:

Constant Field Values

JAVA32_OBJECT

public static final int JAVA32_OBJECT

See Also:

Constant Field Values

JAVA32_ARRAY

public static final int JAVA32_ARRAY

See Also:

Constant Field Values

JAVA64_META

public static final int JAVA64_META

See Also:

Constant Field Values

JAVA64_ARRAY_META

public static final int JAVA64_ARRAY_META

See Also:

Constant Field Values

JAVA64_REF

public static final int JAVA64_REF

See Also:

Constant Field Values

JAVA64_OBJECT

public static final int JAVA64_OBJECT

See Also:

Constant Field Values

JAVA64_ARRAY

public static final int JAVA64_ARRAY

See Also:

Constant Field Values

PRIMITIVES1

public static final int PRIMITIVES1

See Also:

Constant Field Values

PRIMITIVES2

public static final int PRIMITIVES2

See Also:

Constant Field Values

PRIMITIVE_BYTE

public static final int PRIMITIVE_BYTE

See Also:

Constant Field Values

Method Detail

values

public static JavaDataModel[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (JavaDataModel c : JavaDataModel.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static JavaDataModel valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

object

public abstract int object()

array

public abstract int array()

ref

public abstract int ref()

hashMap

public abstract int hashMap(int entry)

hashMapEntry

public abstract int hashMapEntry()

hashSet

public abstract int hashSet(int entry)

linkedHashMap

public abstract int linkedHashMap(int entry)

linkedList

public abstract int linkedList(int entry)

arrayList

public abstract int arrayList()

memoryAlign

public abstract int memoryAlign()

lengthFor

public int lengthFor(String string)

lengthFor

public int lengthFor(NumericHistogram histogram)

lengthFor

public int lengthFor(NumDistinctValueEstimator estimator)

lengthForRandom

public int lengthForRandom()

primitive1

public int primitive1()

primitive2

public int primitive2()

alignUp

public static int alignUp(int value,
                          int align)

get

public static JavaDataModel get()

round

public static int round(int size)

lengthForByteArrayOfSize

public int lengthForByteArrayOfSize(int length)

lengthForObjectArrayOfSize

public int lengthForObjectArrayOfSize(int length)

lengthForLongArrayOfSize

public int lengthForLongArrayOfSize(int length)

lengthForDoubleArrayOfSize

public int lengthForDoubleArrayOfSize(int length)

lengthForIntArrayOfSize

public int lengthForIntArrayOfSize(int length)

lengthForBooleanArrayOfSize

public int lengthForBooleanArrayOfSize(int length)

lengthForTimestampArrayOfSize

public int lengthForTimestampArrayOfSize(int length)

lengthForDateArrayOfSize

public int lengthForDateArrayOfSize(int length)

lengthForDecimalArrayOfSize

public int lengthForDecimalArrayOfSize(int length)

lengthOfDecimal

public int lengthOfDecimal()

lengthOfTimestamp

public int lengthOfTimestamp()

lengthOfDate

public int lengthOfDate()

lengthForStringOfLength

public int lengthForStringOfLength(int strLen)