/*
 * Copyright 2014 - 2020 Rafael Winterhalter
 *
 * 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 net.bytebuddy.matcher;

import net.bytebuddy.build.HashCodeAndEqualsPlugin;

import java.util.Iterator;

A matcher that matches a given element of a collection. If no such element is contained by the matched iterable, the matcher returns false.
Type parameters:
  • <T> – The type of the elements contained by the collection.
/** * A matcher that matches a given element of a collection. If no such element is contained by the matched iterable, the matcher * returns {@code false}. * * @param <T> The type of the elements contained by the collection. */
@HashCodeAndEqualsPlugin.Enhance public class CollectionElementMatcher<T> extends ElementMatcher.Junction.AbstractBase<Iterable<? extends T>> {
The index of the matched element.
/** * The index of the matched element. */
private final int index;
The matcher for the given element, if it exists.
/** * The matcher for the given element, if it exists. */
private final ElementMatcher<? super T> matcher;
Creates a new matcher for an element in a collection.
Params:
  • index – The index of the matched element.
  • matcher – The matcher for the given element, if it exists.
/** * Creates a new matcher for an element in a collection. * * @param index The index of the matched element. * @param matcher The matcher for the given element, if it exists. */
public CollectionElementMatcher(int index, ElementMatcher<? super T> matcher) { this.index = index; this.matcher = matcher; }
{@inheritDoc}
/** * {@inheritDoc} */
public boolean matches(Iterable<? extends T> target) { Iterator<? extends T> iterator = target.iterator(); for (int index = 0; index < this.index; index++) { if (iterator.hasNext()) { iterator.next(); } else { return false; } } return iterator.hasNext() && matcher.matches(iterator.next()); } @Override public String toString() { return "with(" + index + " matches " + matcher + ")"; } }