Class CollectionUtil

java.lang.Object

com.github.hypfvieh.util.CollectionUtil

public final class CollectionUtil
extends Object

Method Summary

Modifier and Type	Method	Description
static <T> T	getFirstOrDefault(Collection<T> _items, T _default)	Returns the first element in the collection or the default value if collection is null or empty.
static boolean	hasValue(Collection<?> _coll)	Verifies if given collection has any value.
static <T> List<T>	mutableListOf(T... _items)	Creates a mutable List of items.

Methods inherited from class Object

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

Method Details

hasValue

public static boolean hasValue(Collection<?> _coll)

Verifies if given collection has any value.

Parameters:

_coll - collection

Returns:

true if given collection is not null and contains any value

mutableListOf

@SafeVarargs
public static <T> List<T> mutableListOf(T... _items)

Creates a mutable List of items.

Type Parameters:

T - Type

Parameters:

_items - Items to add

Returns:

ArrayList

getFirstOrDefault

public static <T> T getFirstOrDefault(Collection<T> _items,
 T _default)

Returns the first element in the collection or the default value if collection is null or empty.

Type Parameters:

T - type

Parameters:

_items - collection with elements

_default - default if collection is empty/null

Returns:

first element of collection or default