net.mintern.functions.unary

Interface ObjToBool<T>

Type Parameters:

T - the type of the argument

All Superinterfaces:

ObjToBoolE<T,RuntimeException>, Predicate<T>

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface ObjToBool<T>
extends ObjToBoolE<T,RuntimeException>, Predicate<T>

An operation of type (T) -> boolean.

Method Summary

Modifier and Type	Method and Description
static <T> NilToBool	bind(ObjToBool<T> f, T t) Binds (t) to f, returning a new function of type () -> boolean.
default NilToBool	bind(T t) Binds (t) to this, returning a new function of type () -> boolean.
default boolean	test(T t) Allows this to act as a Predicate<T>.
static <T,E extends Exception> ObjToBool<T>	unchecked(Function<? super E,RuntimeException> toRuntime, ObjToBoolE<T,E> f) Returns a wrapped version of f that uses toRuntime to convert any checked Exception to a RuntimeException.
static <T,E extends Exception> ObjToBool<T>	unchecked(ObjToBoolE<T,E> f) Returns a wrapped version of f that wraps any checked Exception with a RuntimeException.
static <T,E extends IOException> ObjToBool<T>	uncheckedIO(ObjToBoolE<T,E> f) Returns a wrapped version of f that wraps any IOException with an UncheckedIOException.

Methods inherited from interface net.mintern.functions.unary.checked.ObjToBoolE

bind, call

Methods inherited from interface java.util.function.Predicate

and, isEqual, negate, or

Method Detail

unchecked

static <T,E extends Exception> ObjToBool<T> unchecked(Function<? super E,RuntimeException> toRuntime,
                                                      ObjToBoolE<T,E> f)

Returns a wrapped version of f that uses toRuntime to convert any checked Exception to a RuntimeException.

Type Parameters:

T - the type of argument 1

E - the Exception type that the operation may throw

Parameters:

toRuntime - if a checked exception is thrown from ObjToBoolE.call(T), then this function is called in in order to convert it to a RuntimeException

f - the operation to wrap

Returns:

a wrapped version of f that does not throw checked exceptions

unchecked

static <T,E extends Exception> ObjToBool<T> unchecked(ObjToBoolE<T,E> f)

Returns a wrapped version of f that wraps any checked Exception with a RuntimeException.

Type Parameters:

T - the type of argument 1

E - the Exception type that the operation may throw

Parameters:

f - the operation to wrap

Returns:

a wrapped version of f that does not throw checked exceptions

uncheckedIO

static <T,E extends IOException> ObjToBool<T> uncheckedIO(ObjToBoolE<T,E> f)

Returns a wrapped version of f that wraps any IOException with an UncheckedIOException.

Type Parameters:

T - the type of argument 1

E - the Exception type that the operation may throw

Parameters:

f - the operation to wrap

Returns:

a wrapped version of f that throws UncheckedIOException instead of IOException

bind

static <T> NilToBool bind(ObjToBool<T> f,
                          T t)

Binds (t) to f, returning a new function of type () -> boolean.

Type Parameters:

T - the type of the argument

Parameters:

f - the unbound function

t - the argument

Returns:

a new function () -> boolean that calls f.call(t) and returns the result.

bind

default NilToBool bind(T t)

Binds (t) to this, returning a new function of type () -> boolean.

Specified by:

bind in interface ObjToBoolE<T,RuntimeException>

Parameters:

t - the argument

Returns:

a new function () -> boolean that calls this.call(t) and returns the result.

test

default boolean test(T t)

Allows this to act as a Predicate<T>.

Specified by:

test in interface Predicate<T>

Parameters:

t - the argument

Returns:

the result of the operation