Module seppiko.commons.utils

Package org.seppiko.commons.utils

Class ObjectUtil

java.lang.Object

org.seppiko.commons.utils.ObjectUtil

public class ObjectUtil
extends Object

Object utility

Author:

Leonard Woo

See Also:

• Objects
• Optional

Method Summary

Modifier and Type	Method	Description
static Object	deepCopy(Object obj)	Creates and returns a deep copy.
static <T> Optional<T>	optionalOf(T value)	Get Optional with ignore value nullable.
static <T> T	requireWithElse(T value, T other)	Get value not null or else.

Methods inherited from class java.lang.Object

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

Method Details

requireWithElse

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

Get value not null or else.

Like this Optional.ofNullable(value).orElse(defaultValue);

Type Parameters:

T - the type of value.

Parameters:

value - the possibly-null value to describe.

other - the value to be returned, if value is null. May be null.

Returns:

the value, if value not null, otherwise other.

optionalOf

public static <T> Optional<T> optionalOf(T value)

Get Optional with ignore value nullable.

Type Parameters:

T - the type of value.

Parameters:

value - the possibly-null value to describe.

Returns:

the Optional.

deepCopy

public static Object deepCopy(Object obj)
                       throws IOException,
ReflectiveOperationException,
SecurityException,
NullPointerException

Creates and returns a deep copy.

Parameters:

obj - an object.

Returns:

a deep copy of the object.

Throws:

IOException - if an I/O error occurs while writing stream header.

ReflectiveOperationException - object cannot be found.

SecurityException - if the stream header is incorrect.

NullPointerException - object is null.