org.panda_lang.utilities.commons

Class ObjectUtils

java.lang.Object

org.panda_lang.utilities.commons.ObjectUtils

public final class ObjectUtils
extends Object

Method Summary

Modifier and Type	Method and Description
static boolean	areNull(Object... objects) Check if all values are null
static <T> T	cast(Class<T> clazz, @Nullable Object object) Try to cast or get null
static <T> T	cast(Object object)
static <T,C> boolean	equals(T object, C value, Object to, Function<T,C> getter) Compare only one value that belongs to class and determines equality
static <T> boolean	equals(T object, Object to, BiPredicate<T,T> equals) Compare objects without boilerplate initial statements like (object == this) & (getClass() !
static boolean	equalsOneOf(Object value, Object... expected) Check if the value is one of the expected
static boolean	isNotNull(@Nullable Object object) Check if object is not null

Methods inherited from class java.lang.Object

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

Method Detail

cast

@Nullable
public static <T> T cast(Class<T> clazz,
                                    @Nullable
                                    @Nullable Object object)

Try to cast or get null

Type Parameters:

T - the result type

Parameters:

object - the object to cast

clazz - the type to cast

Returns:

casted object or null if object is not a clazz type

cast

@Nullable
public static <T> T cast(Object object)

isNotNull

public static boolean isNotNull(@Nullable
                                @Nullable Object object)

Check if object is not null

Parameters:

object - object to check

Returns:

true if object is not null

areNull

public static boolean areNull(Object... objects)

Check if all values are null

Parameters:

objects - array to check

Returns:

true if all values are null and false for non null element/empty array

equalsOneOf

public static boolean equalsOneOf(Object value,
                                  Object... expected)

Check if the value is one of the expected

Parameters:

value - value to check

expected - expected values

Returns:

true if expected values contains the specified value

equals

public static <T,C> boolean equals(T object,
                                   C value,
                                   Object to,
                                   Function<T,C> getter)

Compare only one value that belongs to class and determines equality

Type Parameters:

T - type of current object

C - type of compared values

Parameters:

object - the current object (~ this)

value - the value of current object

to - the object to compare with

getter - the getter to obtain value from compared object

Returns:

true if compared objects are equal

equals

public static <T> boolean equals(T object,
                                 Object to,
                                 BiPredicate<T,T> equals)

Compare objects without boilerplate initial statements like (object == this) & (getClass() != to.getClass())

Type Parameters:

T - type of objects to compare

Parameters:

object - the current object (this)

to - the object to compare with

equals - the predicate which determines equality

Returns:

true if objects are the same type and fulfils the predicate