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 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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
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 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
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package org.apache.commons.collections4.functors;

import java.io.Serializable;

import org.apache.commons.collections4.Predicate;

Predicate implementation that returns true if both the predicates return true.
Since:3.0
/** * Predicate implementation that returns true if both the predicates return true. * * @since 3.0 */
public final class AndPredicate<T> implements PredicateDecorator<T>, Serializable {
Serial version UID
/** Serial version UID */
private static final long serialVersionUID = 4189014213763186912L;
The array of predicates to call
/** The array of predicates to call */
private final Predicate<? super T> iPredicate1;
The array of predicates to call
/** The array of predicates to call */
private final Predicate<? super T> iPredicate2;
Factory to create the predicate.
Params:
  • predicate1 – the first predicate to check, not null
  • predicate2 – the second predicate to check, not null
Type parameters:
  • <T> – the type that the predicate queries
Throws:
Returns:the and predicate
/** * Factory to create the predicate. * * @param <T> the type that the predicate queries * @param predicate1 the first predicate to check, not null * @param predicate2 the second predicate to check, not null * @return the <code>and</code> predicate * @throws NullPointerException if either predicate is null */
public static <T> Predicate<T> andPredicate(final Predicate<? super T> predicate1, final Predicate<? super T> predicate2) { if (predicate1 == null || predicate2 == null) { throw new NullPointerException("Predicate must not be null"); } return new AndPredicate<>(predicate1, predicate2); }
Constructor that performs no validation. Use andPredicate if you want that.
Params:
  • predicate1 – the first predicate to check, not null
  • predicate2 – the second predicate to check, not null
/** * Constructor that performs no validation. * Use <code>andPredicate</code> if you want that. * * @param predicate1 the first predicate to check, not null * @param predicate2 the second predicate to check, not null */
public AndPredicate(final Predicate<? super T> predicate1, final Predicate<? super T> predicate2) { super(); iPredicate1 = predicate1; iPredicate2 = predicate2; }
Evaluates the predicate returning true if both predicates return true.
Params:
  • object – the input object
Returns:true if both decorated predicates return true
/** * Evaluates the predicate returning true if both predicates return true. * * @param object the input object * @return true if both decorated predicates return true */
@Override public boolean evaluate(final T object) { return iPredicate1.evaluate(object) && iPredicate2.evaluate(object); }
Gets the two predicates being decorated as an array.
Returns:the predicates
Since:3.1
/** * Gets the two predicates being decorated as an array. * * @return the predicates * @since 3.1 */
@Override @SuppressWarnings("unchecked") public Predicate<? super T>[] getPredicates() { return new Predicate[] {iPredicate1, iPredicate2}; } }