de.ipcon.tools.function

Class LambdaTools

java.lang.Object

de.ipcon.tools.function.LambdaTools

public final class LambdaTools
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
LambdaTools()

Method Summary

Modifier and Type	Method and Description
static <T> java.util.function.Predicate<T>	and(java.util.function.Predicate<T> p1, java.util.function.Predicate<T> p2) Convenience combinator for multiple predicates for use in Netrexx.
static <T> java.util.function.Predicate<T>	isNull(java.lang.Class<T> clazz) Convenience Predicate for use in Netrexx, because 'Objects::isNull' by itself is not a predicate.
static <T> java.util.function.Predicate<T>	nonNull(java.lang.Class<T> clazz) Convenience Predicate for use in Netrexx, because 'Objects::nonNull' by itself is not a predicate.
static <T> java.util.function.Predicate<T>	not(java.util.function.Predicate<? super T> target) Returns a predicate that is the negation of the supplied predicate.
static <T> java.util.function.Predicate<T>	or(java.util.function.Predicate<T> p1, java.util.function.Predicate<T> p2) Convenience combinator for multiple predicates for use in Netrexx.

Methods inherited from class java.lang.Object

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

Constructor Detail

LambdaTools

public LambdaTools()

Method Detail

not

public static final <T> java.util.function.Predicate<T> not(java.util.function.Predicate<? super T> target)

Returns a predicate that is the negation of the supplied predicate.

Type Parameters:

T - the type of arguments to the specified predicate

Parameters:

target - predicate to negate

Returns:

a predicate that negates the results of the supplied predicate This method is a drop-in backport for java.util.function.Predicate#not and can be removed after minimum Java Version has been changed to JDK 11

nonNull

public static final <T> java.util.function.Predicate<T> nonNull(java.lang.Class<T> clazz)

Convenience Predicate for use in Netrexx, because 'Objects::nonNull' by itself is not a predicate. 'Error: The class 'SAM' cannot be found'. The T-Parameter is to help with Generics in Netrexx.

Returns:

a predicate that returns true of the parameter is not null, false otherwise.

isNull

public static final <T> java.util.function.Predicate<T> isNull(java.lang.Class<T> clazz)

Convenience Predicate for use in Netrexx, because 'Objects::isNull' by itself is not a predicate. 'Error: The class 'SAM' cannot be found'

Returns:

a predicate that returns false if the parameter is not null, true otherwise.

and

public static final <T> java.util.function.Predicate<T> and(java.util.function.Predicate<T> p1,
                                                            java.util.function.Predicate<T> p2)

Convenience combinator for multiple predicates for use in Netrexx.

or

public static final <T> java.util.function.Predicate<T> or(java.util.function.Predicate<T> p1,
                                                           java.util.function.Predicate<T> p2)

Convenience combinator for multiple predicates for use in Netrexx.