org.tensorics.core.math

Class BinaryPredicates

java.lang.Object

org.tensorics.core.math.BinaryPredicates

public final class BinaryPredicates
extends java.lang.Object

Provides utility methods for binary predicates

Method Summary

Modifier and Type	Method and Description
static <T> BinaryPredicate<T>	and(BinaryPredicate<T> leftPredicate, BinaryPredicate<T> rightPredicate) Returns a logical 'and' combination of the two binary predicates.
static <T> BinaryPredicate<T>	invert(BinaryPredicate<T> original) Inverts the given binary predicate.
static <T> BinaryPredicate<T>	not(BinaryPredicate<T> original) Negates the given binary predicate.

Methods inherited from class java.lang.Object

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

Method Detail

not

public static <T> BinaryPredicate<T> not(BinaryPredicate<T> original)

Negates the given binary predicate. Thus, the BinaryPredicate.test(Object, Object) will return the logically negated value of the original. For example, if the predicate is '<=', then this method will transform the predicate (a <= b) to !(a <= b), which is equivalent to (a > b).

Parameters:

original - the original predicate.

Returns:

invert

public static <T> BinaryPredicate<T> invert(BinaryPredicate<T> original)

Inverts the given binary predicate. Thus, if e.g. the predicate is '<=', then this method will transform the predicate (a <= b) to (a >= b).

Parameters:

original - the original predicate.

Returns:

the inverted predicate.

and

public static <T> BinaryPredicate<T> and(BinaryPredicate<T> leftPredicate,
                                         BinaryPredicate<T> rightPredicate)

Returns a logical 'and' combination of the two binary predicates. Thus, the resulting predicate will only be fulfilled as soon as both predicate test methods return true.

Parameters:

leftPredicate - the first predicate which shall be part of the and condition

rightPredicate - the second predicate which shall be part of the and condition

Returns:

a predicate which represents a logical 'AND' between the two predicates