/*
 * Copyright (C) 2015, Google Inc. and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package org.eclipse.jgit.lib;

/**
 * Simple set of ObjectIds.
 * <p>
 * Usually backed by a read-only data structure such as
 * {@link org.eclipse.jgit.internal.storage.file.PackIndex}. Mutable types like
 * {@link org.eclipse.jgit.lib.ObjectIdOwnerMap} also implement the interface by
 * checking keys.
 *
 * @since 4.2
 */
public interface ObjectIdSet {
	/**
	 * Returns true if the objectId is contained within the collection.
	 *
	 * @param objectId
	 *            the objectId to find
	 * @return whether the collection contains the objectId.
	 */
	boolean contains(AnyObjectId objectId);
}