/*
 * Copyright (c) 2018 Goldman Sachs and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Eclipse Distribution License v. 1.0 which accompany this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 */

package org.eclipse.collections.api;

import java.util.Collection;
import java.util.NoSuchElementException;

import org.eclipse.collections.api.bag.primitive.MutableBooleanBag;
import org.eclipse.collections.api.block.function.primitive.BooleanBooleanToBooleanFunction;
import org.eclipse.collections.api.block.function.primitive.BooleanToBooleanFunction;
import org.eclipse.collections.api.block.function.primitive.BooleanToByteFunction;
import org.eclipse.collections.api.block.function.primitive.BooleanToShortFunction;
import org.eclipse.collections.api.block.function.primitive.BooleanToCharFunction;
import org.eclipse.collections.api.block.function.primitive.BooleanToDoubleFunction;
import org.eclipse.collections.api.block.function.primitive.BooleanToFloatFunction;
import org.eclipse.collections.api.block.function.primitive.BooleanToIntFunction;
import org.eclipse.collections.api.block.function.primitive.BooleanToLongFunction;
import org.eclipse.collections.api.block.function.primitive.ObjectBooleanToObjectFunction;
import org.eclipse.collections.api.block.function.primitive.BooleanToObjectFunction;
import org.eclipse.collections.api.block.predicate.primitive.BooleanPredicate;
import org.eclipse.collections.api.block.procedure.primitive.BooleanProcedure;
import org.eclipse.collections.api.collection.primitive.MutableBooleanCollection;
import org.eclipse.collections.api.collection.primitive.MutableByteCollection;
import org.eclipse.collections.api.collection.primitive.MutableCharCollection;
import org.eclipse.collections.api.collection.primitive.MutableDoubleCollection;
import org.eclipse.collections.api.collection.primitive.MutableFloatCollection;
import org.eclipse.collections.api.collection.primitive.MutableIntCollection;
import org.eclipse.collections.api.collection.primitive.MutableLongCollection;
import org.eclipse.collections.api.collection.primitive.MutableShortCollection;
import org.eclipse.collections.api.iterator.BooleanIterator;
import org.eclipse.collections.api.list.primitive.MutableBooleanList;
import org.eclipse.collections.api.set.primitive.MutableBooleanSet;

BooleanIterable is an interface which is memory-optimized for boolean primitives. It is inspired by the interface RichIterable, and contains a subset of the internal iterator methods on RichIterable like collect, sum, etc. The API also includes an external iterator method, which returns an BooleanIterator. BooleanIterator helps iterate over the BooleanIterable without boxing the primitives. This file was automatically generated from template file primitiveIterable.stg.
/** * BooleanIterable is an interface which is memory-optimized for boolean primitives. * It is inspired by the interface RichIterable, and contains a subset of the internal iterator methods on RichIterable like collect, sum, etc. * The API also includes an external iterator method, which returns an BooleanIterator. BooleanIterator helps iterate over the BooleanIterable without boxing the primitives. * This file was automatically generated from template file primitiveIterable.stg. */
public interface BooleanIterable extends PrimitiveIterable {
Returns a primitive iterator that can be used to iterate over the BooleanIterable in an imperative style.
/** * Returns a primitive iterator that can be used to iterate over the BooleanIterable in an * imperative style. */
BooleanIterator booleanIterator();
Converts the BooleanIterable to a primitive boolean array.
/** * Converts the BooleanIterable to a primitive boolean array. */
boolean[] toArray();
Returns true if the value is contained in the BooleanIterable, and false if it is not.
/** * Returns true if the value is contained in the BooleanIterable, and false if it is not. */
boolean contains(boolean value);
Returns true if the all of the values specified in the source array are contained in the BooleanIterable, and false if they are not.
/** * Returns true if the all of the values specified in the source array are contained * in the BooleanIterable, and false if they are not. */
boolean containsAll(boolean... source);
Returns true if the all of the values specified in the source BooleanIterable are contained in the BooleanIterable, and false if they are not.
/** * Returns true if the all of the values specified in the source BooleanIterable are contained * in the BooleanIterable, and false if they are not. */
boolean containsAll(BooleanIterable source);
Applies the BooleanProcedure to each element in the BooleanIterable.
/** * Applies the BooleanProcedure to each element in the BooleanIterable. */
void forEach(BooleanProcedure procedure);
A synonym for forEach.
Since:7.0.
/** * A synonym for forEach. * * @since 7.0. */
void each(BooleanProcedure procedure);
Since:9.0.
/** * @since 9.0. */
default BooleanIterable tap(BooleanProcedure procedure) { this.forEach(procedure); return this; }
Returns a new BooleanIterable with all of the elements in the BooleanIterable that return true for the specified predicate.
/** * Returns a new BooleanIterable with all of the elements in the BooleanIterable that * return true for the specified predicate. */
BooleanIterable select(BooleanPredicate predicate);
Returns a new BooleanIterable with all of the elements in the BooleanIterable that return false for the specified predicate.
/** * Returns a new BooleanIterable with all of the elements in the BooleanIterable that * return false for the specified predicate. */
BooleanIterable reject(BooleanPredicate predicate);
Same as select(BooleanPredicate) , only the results are added to the target MutableBooleanCollection.
Since:8.1.
/** * Same as {@link #select(BooleanPredicate)} , only the results are added to the target MutableBooleanCollection. * * @since 8.1. */
default <R extends MutableBooleanCollection> R select(BooleanPredicate predicate, R target) { this.each(each -> { if (predicate.accept(each)) { target.add(each); } }); return target; }
Same as reject(BooleanPredicate) , only the results are added to the target MutableBooleanCollection.
Since:8.1.
/** * Same as {@link #reject(BooleanPredicate)} , only the results are added to the target MutableBooleanCollection. * * @since 8.1. */
default <R extends MutableBooleanCollection> R reject(BooleanPredicate predicate, R target) { this.each(each -> { if (!predicate.accept(each)) { target.add(each); } }); return target; }
Returns a new collection with the results of applying the specified function on each element of the source collection. This method is also commonly called transform or map.
/** * Returns a new collection with the results of applying the specified function on each element of the source * collection. This method is also commonly called transform or map. */
<V> RichIterable<V> collect(BooleanToObjectFunction<? extends V> function);
Same as collect(BooleanToObjectFunction<? extends Object>) , only the results are added to the target Collection.
Since:8.1.
/** * Same as {@link #collect(BooleanToObjectFunction)} , only the results are added to the target Collection. * * @since 8.1. */
default <V, R extends Collection<V>> R collect(BooleanToObjectFunction<? extends V> function, R target) { this.each(each -> target.add(function.valueOf(each))); return target; }
flatCollect is a special case of collect(BooleanToObjectFunction<? extends Object>). With collect, when the BooleanToObjectFunction returns a collection, the result is a collection of collections. flatCollect outputs a single "flattened" collection instead. This method is commonly called flatMap.
Since:8.1.
/** * {@code flatCollect} is a special case of {@link #collect(BooleanToObjectFunction)}. With {@code collect}, when the {@link BooleanToObjectFunction} returns * a collection, the result is a collection of collections. {@code flatCollect} outputs a single "flattened" collection * instead. This method is commonly called flatMap. * * @since 8.1. */
default <V, R extends Collection<V>> R flatCollect(BooleanToObjectFunction<? extends Iterable<V>> function, R target) { this.each(each -> { Iterable<V> iterable = function.valueOf(each); if (iterable instanceof Collection) { target.addAll((Collection<V>) iterable); } else { iterable.forEach(target::add); } }); return target; }
Returns the target MutableBooleanCollection with the results of applying the specified function on each element of the source collection.
Since:8.1.
/** * Returns the target {@code MutableBooleanCollection} with the results of applying the specified function on each element * of the source collection. * * @since 8.1. */
default <R extends MutableBooleanCollection> R collectBoolean(BooleanToBooleanFunction function, R target) { this.each(each -> target.add(function.valueOf(each))); return target; }
Returns the target MutableByteCollection with the results of applying the specified function on each element of the source collection.
Since:8.1.
/** * Returns the target {@code MutableByteCollection} with the results of applying the specified function on each element * of the source collection. * * @since 8.1. */
default <R extends MutableByteCollection> R collectByte(BooleanToByteFunction function, R target) { this.each(each -> target.add(function.valueOf(each))); return target; }
Returns the target MutableCharCollection with the results of applying the specified function on each element of the source collection.
Since:8.1.
/** * Returns the target {@code MutableCharCollection} with the results of applying the specified function on each element * of the source collection. * * @since 8.1. */
default <R extends MutableCharCollection> R collectChar(BooleanToCharFunction function, R target) { this.each(each -> target.add(function.valueOf(each))); return target; }
Returns the target MutableShortCollection with the results of applying the specified function on each element of the source collection.
Since:8.1.
/** * Returns the target {@code MutableShortCollection} with the results of applying the specified function on each element * of the source collection. * * @since 8.1. */
default <R extends MutableShortCollection> R collectShort(BooleanToShortFunction function, R target) { this.each(each -> target.add(function.valueOf(each))); return target; }
Returns the target MutableIntCollection with the results of applying the specified function on each element of the source collection.
Since:8.1.
/** * Returns the target {@code MutableIntCollection} with the results of applying the specified function on each element * of the source collection. * * @since 8.1. */
default <R extends MutableIntCollection> R collectInt(BooleanToIntFunction function, R target) { this.each(each -> target.add(function.valueOf(each))); return target; }
Returns the target MutableFloatCollection with the results of applying the specified function on each element of the source collection.
Since:8.1.
/** * Returns the target {@code MutableFloatCollection} with the results of applying the specified function on each element * of the source collection. * * @since 8.1. */
default <R extends MutableFloatCollection> R collectFloat(BooleanToFloatFunction function, R target) { this.each(each -> target.add(function.valueOf(each))); return target; }
Returns the target MutableLongCollection with the results of applying the specified function on each element of the source collection.
Since:8.1.
/** * Returns the target {@code MutableLongCollection} with the results of applying the specified function on each element * of the source collection. * * @since 8.1. */
default <R extends MutableLongCollection> R collectLong(BooleanToLongFunction function, R target) { this.each(each -> target.add(function.valueOf(each))); return target; }
Returns the target MutableDoubleCollection with the results of applying the specified function on each element of the source collection.
Since:8.1.
/** * Returns the target {@code MutableDoubleCollection} with the results of applying the specified function on each element * of the source collection. * * @since 8.1. */
default <R extends MutableDoubleCollection> R collectDouble(BooleanToDoubleFunction function, R target) { this.each(each -> target.add(function.valueOf(each))); return target; } boolean detectIfNone(BooleanPredicate predicate, boolean ifNone);
Returns a count of the number of elements in the BooleanIterable that return true for the specified predicate.
/** * Returns a count of the number of elements in the BooleanIterable that return true for the * specified predicate. */
int count(BooleanPredicate predicate);
Returns true if any of the elements in the BooleanIterable return true for the specified predicate, otherwise returns false.
/** * Returns true if any of the elements in the BooleanIterable return true for the * specified predicate, otherwise returns false. */
boolean anySatisfy(BooleanPredicate predicate);
Returns true if all of the elements in the BooleanIterable return true for the specified predicate, otherwise returns false.
/** * Returns true if all of the elements in the BooleanIterable return true for the * specified predicate, otherwise returns false. */
boolean allSatisfy(BooleanPredicate predicate);
Returns true if none of the elements in the BooleanIterable return true for the specified predicate, otherwise returns false.
/** * Returns true if none of the elements in the BooleanIterable return true for the * specified predicate, otherwise returns false. */
boolean noneSatisfy(BooleanPredicate predicate);
Converts the BooleanIterable to a new MutableBooleanList.
/** * Converts the BooleanIterable to a new MutableBooleanList. */
MutableBooleanList toList();
Converts the BooleanIterable to a new MutableBooleanSet.
/** * Converts the BooleanIterable to a new MutableBooleanSet. */
MutableBooleanSet toSet();
Converts the BooleanIterable to a new MutableBooleanBag.
/** * Converts the BooleanIterable to a new MutableBooleanBag. */
MutableBooleanBag toBag();
Returns a LazyBooleanIterable adapter wrapping the source BooleanIterable.
/** * Returns a LazyBooleanIterable adapter wrapping the source BooleanIterable. */
LazyBooleanIterable asLazy(); <T> T injectInto(T injectedValue, ObjectBooleanToObjectFunction<? super T, ? extends T> function);
See Also:
  • reduce(BooleanBooleanToBooleanFunction)
Since:10.0
/** * @see #reduce(BooleanBooleanToBooleanFunction) * * @since 10.0 */
default boolean reduceIfEmpty(BooleanBooleanToBooleanFunction accumulator, boolean defaultValue) { if (this.isEmpty()) { return defaultValue; } else { return this.reduce(accumulator); } }
See Also:
  • reduce.reduce(BinaryOperator)
Since:10.0
/** * @see RichIterable#reduce(BinaryOperator) * * @since 10.0 */
default boolean reduce(BooleanBooleanToBooleanFunction accumulator) { boolean[] seenOne = new boolean[1]; boolean[] result = new boolean[1]; this.each(each -> { if (seenOne[0]) { result[0] = accumulator.valueOf(result[0], each); } else { seenOne[0] = true; result[0] = each; } }); if (!seenOne[0]) { throw new NoSuchElementException(); } else { return result[0]; } }
Partitions elements in fixed size chunks.
Params:
  • size – the number of elements per chunk
Returns:A RichIterable containing BooleanIterables of size size, except the last will be truncated if the elements don't divide evenly.
Since:9.2
/** * Partitions elements in fixed size chunks. * * @param size the number of elements per chunk * * @return A {@code RichIterable} containing {@code BooleanIterable}s of size {@code size}, except the last will be * truncated if the elements don't divide evenly. * * @since 9.2 */
default RichIterable<BooleanIterable> chunk(int size) { throw new UnsupportedOperationException("Default method to prevent breaking backwards compatibility"); } }