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/*
* This file is part of "lunisolar-magma".
*
* (C) Copyright 2015 Lunisolar (http://lunisolar.eu/).
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package eu.lunisolar.magma.func.operator.ternary;
import javax.annotation.Nonnull; // NOSONAR
import javax.annotation.Nullable; // NOSONAR
import java.util.Comparator; // NOSONAR
import java.util.Objects; // NOSONAR
import eu.lunisolar.magma.basics.*; //NOSONAR
import eu.lunisolar.magma.basics.builder.*; // NOSONAR
import eu.lunisolar.magma.basics.exceptions.*; // NOSONAR
import eu.lunisolar.magma.basics.meta.*; // NOSONAR
import eu.lunisolar.magma.basics.meta.functional.*; // NOSONAR
import eu.lunisolar.magma.basics.meta.functional.type.*; // NOSONAR
import eu.lunisolar.magma.basics.meta.functional.domain.*; // NOSONAR
import eu.lunisolar.magma.func.*; // NOSONAR
import eu.lunisolar.magma.func.operator.unary.*; // NOSONAR
import eu.lunisolar.magma.func.operator.binary.*; // NOSONAR
import eu.lunisolar.magma.func.operator.ternary.*; // NOSONAR
import eu.lunisolar.magma.func.function.*; // NOSONAR
import eu.lunisolar.magma.func.function.from.*; // NOSONAR
import eu.lunisolar.magma.func.function.to.*; // NOSONAR
import eu.lunisolar.magma.func.function.conversion.*; // NOSONAR
import eu.lunisolar.magma.func.predicate.*; // NOSONAR
import eu.lunisolar.magma.func.supplier.*; // NOSONAR
import eu.lunisolar.magma.func.consumer.*; // NOSONAR
import eu.lunisolar.magma.func.consumer.primitives.*; // NOSONAR
import eu.lunisolar.magma.func.consumer.primitives.bi.*; // NOSONAR
import eu.lunisolar.magma.func.consumer.primitives.tri.*; // NOSONAR
import eu.lunisolar.magma.func.consumer.primitives.obj.*; // NOSONAR
import eu.lunisolar.magma.func.action.*; // NOSONAR
/**
* Non-throwing functional interface (lambda) LTernaryOperator for Java 8.
*
* Type: operator
*
* Domain (lvl: 3): T t1,T t2,T t3
*
* Co-domain: T
*
* @see LTernaryOperatorX
*/
@FunctionalInterface
@SuppressWarnings("UnusedDeclaration")
public interface LTernaryOperator extends LTernaryOperatorX, MetaOperator, MetaInterface.NonThrowing, LTriFunction { // NOSONAR
static final String DESCRIPTION = "LTernaryOperator: T doApply(T t1,T t2,T t3)";
/** Function call that handles exceptions by always nesting checked exceptions and propagating the otheres as is. */
default T nestingDoApply(T t1, T t2, T t3) {
return this.doApply(t1, t2, t3);
}
/** Function call that handles exceptions by always propagating them as is even when they are undeclared checked ones. */
default T shovingDoApply(T t1, T t2, T t3) {
return this.doApply(t1, t2, t3);
}
static final LSupplier NULL_VALUE_MESSAGE_SUPPLIER = () -> "Evaluated value by nonNullDoApply() method cannot be null (" + DESCRIPTION + ").";
/** Function call that ensures the result is not null */
@Nonnull
default T nonNullDoApply(T t1, T t2, T t3) {
return Null.requireNonNull(doApply(t1, t2, t3), NULL_VALUE_MESSAGE_SUPPLIER);
}
/** Returns description of the functional interface. */
@Nonnull
default String functionalInterfaceDescription() {
return LTernaryOperator.DESCRIPTION;
}
/** Captures arguments but delays the evaluation. */
default LSupplier captureTernaryOp(T t1, T t2, T t3) {
return () -> this.doApply(t1, t2, t3);
}
/** Creates function that always returns the same value. */
static LTernaryOperator constant(T r) {
return (t1, t2, t3) -> r;
}
/** Captures single parameter function into this interface where only 1st parameter will be used. */
@Nonnull
static LTernaryOperator apply1st(@Nonnull LUnaryOperator func) {
return (t1, t2, t3) -> func.doApply(t1);
}
/** Captures single parameter function into this interface where only 2nd parameter will be used. */
@Nonnull
static LTernaryOperator apply2nd(@Nonnull LUnaryOperator func) {
return (t1, t2, t3) -> func.doApply(t2);
}
/** Captures single parameter function into this interface where only 3rd parameter will be used. */
@Nonnull
static LTernaryOperator apply3rd(@Nonnull LUnaryOperator func) {
return (t1, t2, t3) -> func.doApply(t3);
}
/** Convenient method in case lambda expression is ambiguous for the compiler (that might happen for overloaded methods accepting different interfaces). */
@Nonnull
static LTernaryOperator l(final @Nonnull LTernaryOperator lambda) {
Null.nonNullArg(lambda, "lambda");
return lambda;
}
//
/** Wraps opposite (throwing vs non-throwing) instance. */
@Nonnull
static LTernaryOperator wrap(final @Nonnull LTernaryOperatorX other) {
return other::nestingDoApply;
}
//
//
/** Combines two operators together in a order. */
@Nonnull
default LTriFunction then(@Nonnull LFunction after) {
Null.nonNullArg(after, "after");
return (T t1, T t2, T t3) -> after.doApply(this.doApply(t1, t2, t3));
}
//
//
/** Converts to non-throwing variant (if required). */
@Nonnull
default LTernaryOperator nestingTernaryOp() {
return this;
}
/** Converts to throwing variant (RuntimeException). */
@Nonnull
default LTernaryOperatorX nestingTernaryOpX() {
return this;
}
/** Converts to non-throwing variant that will propagate checked exception as it would be unchecked - there is no exception wrapping involved (at least not here). */
default LTernaryOperator shovingTernaryOp() {
return this;
}
/** Converts to throwing variant (RuntimeException) that will propagate checked exception as it would be unchecked - there is no exception wrapping involved (at least not here). */
default LTernaryOperatorX shovingTernaryOpX() {
return this;
}
//
/** Converts to function that makes sure that the result is not null. */
@Nonnull
default LTernaryOperator nonNullTernaryOp() {
return this::nonNullDoApply;
}
}
