org.bongiorno.misc.utils

Class OtherUtils

java.lang.Object

org.bongiorno.misc.utils.OtherUtils

public class OtherUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
OtherUtils()

Method Summary

Modifier and Type	Method and Description
static boolean	fieldEquals(Object a, Object b) This utility method will compare equality on all private non-static fields.
static int	fieldHashCode(Object a)
static String	getMyHostname()
static int	hashCodeSeries(Object... cherrios)
static String	hexFormat(byte[] data)
static boolean	isImgPng(byte[] imgData)
static Collection<Field>	nullFields(Object o) Get a set of all the fields in an object that have not been initialized.
static boolean	zeroOrAllNull(Collection<?> things)
static boolean	zeroOrAllNull(Object... things)

Methods inherited from class java.lang.Object

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

Constructor Detail

OtherUtils

public OtherUtils()

Method Detail

fieldEquals

public static boolean fieldEquals(Object a,
                                  Object b)
                           throws IllegalAccessException

This utility method will compare equality on all private non-static fields. Note: If the security manager is active then this method will throw exceptions. Sadly the only TRUE way to make sure this runs is to C and P it into your class. Best used on classes with large fields that you don't want to have an ugly generated method for

caveat emptor

Parameters:

a - 'this' usually

b - the other object to test equality on

Returns:

true if all members as described above are equal

Throws:

IllegalAccessException - if the caller of this function is unable to access the members of 'a' or 'b'

fieldHashCode

public static int fieldHashCode(Object a)
                         throws IllegalAccessException

Throws:

IllegalAccessException

hashCodeSeries

public static int hashCodeSeries(Object... cherrios)

nullFields

public static Collection<Field> nullFields(Object o)
                                    throws IllegalAccessException

Get a set of all the fields in an object that have not been initialized. Useful when testing transformers, to make sure you're not missing anything (and let you know what you are missing).

Parameters:

o - The object to check for null fields

Returns:

All the fields that are null

Throws:

IllegalAccessException - If the security manager doesn't like you looking at private fields.

hexFormat

public static String hexFormat(byte[] data)

zeroOrAllNull

public static boolean zeroOrAllNull(Object... things)

zeroOrAllNull

public static boolean zeroOrAllNull(Collection<?> things)

getMyHostname

public static String getMyHostname()

isImgPng

public static boolean isImgPng(byte[] imgData)