com.netflix.hollow.core.read

Class HollowReadFieldUtils

java.lang.Object

com.netflix.hollow.core.read.HollowReadFieldUtils

public class HollowReadFieldUtils
extends java.lang.Object

Useful utility methods for interacting with a HollowDataAccess.

Constructor Summary

Constructors

Constructor and Description
HollowReadFieldUtils()

Method Summary

Modifier and Type	Method and Description
static int	booleanHashCode(java.lang.Boolean bool)
static int	byteArrayHashCode(byte[] data)
static java.lang.String	displayString(HollowObjectTypeDataAccess typeAccess, int ordinal, int fieldPosition)
static int	doubleHashCode(double d)
static int	fieldHashCode(HollowObjectTypeDataAccess typeAccess, int ordinal, int fieldPosition) Hash a field in an OBJECT record.
static boolean	fieldsAreEqual(HollowObjectTypeDataAccess typeAccess1, int ordinal1, int fieldPosition1, HollowObjectTypeDataAccess typeAccess2, int ordinal2, int fieldPosition2) Determine whether two OBJECT field records are exactly equal.
static boolean	fieldValueEquals(HollowObjectTypeDataAccess typeAccess, int ordinal, int fieldPosition, java.lang.Object testObject)
static java.lang.Object	fieldValueObject(HollowObjectTypeDataAccess typeAccess, int ordinal, int fieldPosition)
static int	floatHashCode(float f)
static int	intHashCode(int i)
static int	longHashCode(long l)
static int	stringHashCode(java.lang.String str)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HollowReadFieldUtils

public HollowReadFieldUtils()

Method Detail

fieldHashCode

public static int fieldHashCode(HollowObjectTypeDataAccess typeAccess,
                                int ordinal,
                                int fieldPosition)

Hash a field in an OBJECT record.

Parameters:

typeAccess - the data access

ordinal - the ordinal

fieldPosition - the field position

Returns:

the hash code

fieldsAreEqual

public static boolean fieldsAreEqual(HollowObjectTypeDataAccess typeAccess1,
                                     int ordinal1,
                                     int fieldPosition1,
                                     HollowObjectTypeDataAccess typeAccess2,
                                     int ordinal2,
                                     int fieldPosition2)

Determine whether two OBJECT field records are exactly equal.

Parameters:

typeAccess1 - the first type access

ordinal1 - the first ordinal

fieldPosition1 - the first field positiom

typeAccess2 - the second type access

ordinal2 - the second ordinal

fieldPosition2 - the second field position

Returns:

if the two OBJECT field records are exactly equal

displayString

public static java.lang.String displayString(HollowObjectTypeDataAccess typeAccess,
                                             int ordinal,
                                             int fieldPosition)

Parameters:

typeAccess - the type access

ordinal - the ordinal

fieldPosition - the field position

Returns:

a displayable String for a field from an OBJECT record.

fieldValueObject

public static java.lang.Object fieldValueObject(HollowObjectTypeDataAccess typeAccess,
                                                int ordinal,
                                                int fieldPosition)

Parameters:

typeAccess - the type access

ordinal - the ordinal

fieldPosition - the field position

Returns:

an appropriate Object representing a Hollow OBJECT record field's value

fieldValueEquals

public static boolean fieldValueEquals(HollowObjectTypeDataAccess typeAccess,
                                       int ordinal,
                                       int fieldPosition,
                                       java.lang.Object testObject)

Parameters:

typeAccess - the type access

ordinal - the ordinal

fieldPosition - the field position

testObject - the object to test

Returns:

whether the provided Object matches a Hollow OBJECT record's value.

byteArrayHashCode

public static int byteArrayHashCode(byte[] data)

Parameters:

data - the byte array

Returns:

The hash code for a byte array which would be returned from fieldHashCode(HollowObjectTypeDataAccess, int, int)

stringHashCode

public static int stringHashCode(java.lang.String str)

Parameters:

str - the string value

Returns:

The hash code for a String which would be returned from fieldHashCode(HollowObjectTypeDataAccess, int, int)

booleanHashCode

public static int booleanHashCode(java.lang.Boolean bool)

Parameters:

bool - the boolean value

Returns:

The hash code for a boolean which would be returned from fieldHashCode(HollowObjectTypeDataAccess, int, int)

longHashCode

public static int longHashCode(long l)

Parameters:

l - the long value

Returns:

The hash code for a long which would be returned from fieldHashCode(HollowObjectTypeDataAccess, int, int)

intHashCode

public static int intHashCode(int i)

Parameters:

i - the int value

Returns:

The hash code for an int which would be returned from fieldHashCode(HollowObjectTypeDataAccess, int, int)

floatHashCode

public static int floatHashCode(float f)

Parameters:

f - the float value

Returns:

The hash code for a float which would be returned from fieldHashCode(HollowObjectTypeDataAccess, int, int)

doubleHashCode

public static int doubleHashCode(double d)

Parameters:

d - the double value

Returns:

The hash code for a double which would be returned from fieldHashCode(HollowObjectTypeDataAccess, int, int)