org.hkijena.jipipe.utils

Class StreamUtils

java.lang.Object

org.hkijena.jipipe.utils.StreamUtils

public class StreamUtils
extends Object

Utils for Java's stream API

Constructor Summary

Constructors

Constructor and Description
StreamUtils()

Method Summary

Modifier and Type	Method and Description
static <T> boolean	ifNullOr(T nullable, boolean ifNull, Predicate<T> ifNotNull) Returns ifNull if the nullable is null.
static <T> boolean	nullToFalseOrPredicate(T nullable, Predicate<T> ifNotNull) Returns false if the nullable is null.

Methods inherited from class java.lang.Object

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

Constructor Detail

StreamUtils

public StreamUtils()

Method Detail

nullToFalseOrPredicate

public static <T> boolean nullToFalseOrPredicate(T nullable,
                                                 Predicate<T> ifNotNull)

Returns false if the nullable is null. Otherwise, evaluates the predicate.

Type Parameters:

T - object type

Parameters:

nullable - the object

ifNotNull - evaluated if the nullable is not null

Returns:

false if nullable is null. Otherwise, the result of the predicate.

ifNullOr

public static <T> boolean ifNullOr(T nullable,
                                   boolean ifNull,
                                   Predicate<T> ifNotNull)

Returns ifNull if the nullable is null. Otherwise, evaluates the predicate.

Type Parameters:

T - object type

Parameters:

nullable - the object

ifNull - returned if the nullable is null

ifNotNull - evaluated if the nullable is not null

Returns:

ifNull if nullable is null. Otherwise, the result of the predicate.