net.sf.staccatocommons.lang
Class Nulls

java.lang.Object
  net.sf.staccatocommons.lang.Nulls

public class Nulls
extends Object

Class methods to operate with nulls

Author:

flbulgarelli

Constructor Summary

Nulls()

Method Summary

static <T> T	coalesce(T value, T other) Returns the given value, if non null, or other, otherwise.
static <T> T	coalesce(T value, net.sf.staccatocommons.defs.Thunk<T> thunk) Returns the given value, if non null, or the value provided by the given Thunk, otherwise.

Methods inherited from class java.lang.Object

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

Constructor Detail

Nulls

public Nulls()

Method Detail

coalesce

public static <T> T coalesce(T value,
                             T other)

Returns the given value, if non null, or other, otherwise.

Type Parameters:

T -

Parameters:

value - nullable.

other - nullable, although it has little sense to be be null

Returns:

value != null ? value : other

coalesce

public static <T> T coalesce(T value,
                             @NonNull
                             net.sf.staccatocommons.defs.Thunk<T> thunk)

Returns the given value, if non null, or the value provided by the given Thunk, otherwise.

Type Parameters:

T -

Parameters:

value - nullable.

thunk - non null.

Returns:

value != null ? value : thunk.value()