Copyright (c) 2004, 2008 IBM Corporation and others.
This program and the accompanying materials
are made available under the terms of the Eclipse Public License 2.0
which accompanies this distribution, and is available at
https://www.eclipse.org/legal/epl-2.0/
SPDX-License-Identifier: EPL-2.0
Contributors:
    IBM Corporation - initial API and implementation
/*******************************************************************************
 * Copyright (c) 2004, 2008 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.core.internal.registry;

import org.eclipse.core.runtime.InvalidRegistryObjectException;

A handle is the super class to all registry objects that are now served to users.
The handles never hold on to any "real" content of the object being represented.
A handle can become stale if its referenced object has been removed from the registry.
Since:
3.1./**
 * A handle is the super class to all registry objects that are now served to users.
 * The handles never hold on to any "real" content of the object being represented.
 * A handle can become stale if its referenced object has been removed from the registry.
 * @since 3.1.
 */
public abstract class Handle {
	protected IObjectManager objectManager;

	private int objectId;

	public int getId() {
		return objectId;
	}

	Handle(IObjectManager objectManager, int value) {
		objectId = value;
		this.objectManager = objectManager;
	}

	
Return the actual object corresponding to this handle.
Throws:
InvalidRegistryObjectException – when the handle is stale./**
	 * Return the actual object corresponding to this handle.
	 * @throws InvalidRegistryObjectException when the handle is stale.
	 */
	abstract RegistryObject getObject();

	@Override
	public boolean equals(Object object) {
		if (object instanceof Handle) {
			return objectId == ((Handle) object).objectId;
		}
		return false;
	}

	@Override
	public int hashCode() {
		return objectId;
	}
}