org.leialearns.utilities

Class Static

java.lang.Object

org.leialearns.utilities.Static

public class Static
extends Object

Provides static convenience methods.

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	equal(Object thisObject, Object thatObject) Compares two objects.
static long	gcd(long a, long b)
static Class<?>	getLoggingClass(Object object) Returns the class that can be used to derive the logger name from.
static String	join(String separator, String[] parts) Joins an array of strings together using a given separator
static <T> T[]	newArrayInstance(T[] template, int length) Creates a new array instance in a type safe way.
static <T> T[]	offer(T[] prepend, T[] tail) Creates a copy of an array with another array prepended to it.
static <T> T[]	offer(T head, T[] tail) Creates a copy of an array with a single item prepended to it.
static <T> List<T>	toList(TypedIterable<T> iterable)

Methods inherited from class java.lang.Object

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

Method Detail

offer

public static <T> T[] offer(T head,
            T[] tail)

Creates a copy of an array with a single item prepended to it.

Type Parameters:

T - The base type of the array

Parameters:

head - The item to prepend

tail - The original array

Returns:

The extended array

offer

public static <T> T[] offer(T[] prepend,
            T[] tail)

Creates a copy of an array with another array prepended to it.

Type Parameters:

T - The base type of the array

Parameters:

prepend - The array to prepend

tail - The original array

Returns:

The extended array

newArrayInstance

public static <T> T[] newArrayInstance(T[] template,
                       int length)

Creates a new array instance in a type safe way.

Type Parameters:

T - The base type of the new array

Parameters:

template - The original array

length - The length of the new array

Returns:

The new array

equal

public static boolean equal(Object thisObject,
            Object thatObject)

Compares two objects. This method is careful about null values.

Parameters:

thisObject - One object

thatObject - Other object

Returns:

true if the one object equals the other object; false otherwise

getLoggingClass

public static Class<?> getLoggingClass(Object object)

Returns the class that can be used to derive the logger name from. For CGLIB advised classes this is the super class of the object class.

Parameters:

object - The object to query

Returns:

The logging class of the object

join

public static String join(String separator,
          String[] parts)

Joins an array of strings together using a given separator

Parameters:

separator - The separator to use

parts - An array of strings

Returns:

The concatenation of the parts with separators in between

toList

public static <T> List<T> toList(TypedIterable<T> iterable)

gcd

public static long gcd(long a,
       long b)