Copyright (c) 2005, 2015 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) 2005, 2015 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.commands.common;


An event fired from a NamedHandleObject. This provides
notification of changes to the defined state, the name and the description.

Since:
3.2/**
 * <p>
 * An event fired from a <code>NamedHandleObject</code>. This provides
 * notification of changes to the defined state, the name and the description.
 * </p>
 *
 * @since 3.2
 */
public abstract class AbstractHandleObjectEvent extends AbstractBitSetEvent {

	
The bit used to represent whether the category has changed its defined
state.
/**
	 * The bit used to represent whether the category has changed its defined
	 * state.
	 */
	protected static final int CHANGED_DEFINED = 1;

	
The last used bit so that subclasses can add more properties.
/**
	 * The last used bit so that subclasses can add more properties.
	 */
	protected static final int LAST_BIT_USED_ABSTRACT_HANDLE = CHANGED_DEFINED;

	
Constructs a new instance of AbstractHandleObjectEvent.
Params:
definedChanged – 
           true, iff the defined property changed./**
	 * Constructs a new instance of <code>AbstractHandleObjectEvent</code>.
	 *
	 * @param definedChanged
	 *            <code>true</code>, iff the defined property changed.
	 */
	protected AbstractHandleObjectEvent(final boolean definedChanged) {
		if (definedChanged) {
			changedValues |= CHANGED_DEFINED;
		}
	}

	
Returns whether or not the defined property changed.
Returns:
true, iff the defined property changed./**
	 * Returns whether or not the defined property changed.
	 *
	 * @return <code>true</code>, iff the defined property changed.
	 */
	public final boolean isDefinedChanged() {
		return ((changedValues & CHANGED_DEFINED) != 0);
	}
}