Copyright (c) 2000, 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) 2000, 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.expressions;

import org.w3c.dom.Element;

import org.eclipse.core.expressions.EvaluationResult;
import org.eclipse.core.expressions.IEvaluationContext;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;

public class EnablementExpression extends CompositeExpression {

	
Creates a EnablementExpression. 
Params:
configElement – the configuration element/**
	 * Creates a {@link EnablementExpression}.
	 *
	 * @param configElement the configuration element
	 */
	public EnablementExpression(IConfigurationElement configElement) {
		// config element not used yet.
	}

	
Creates a EnablementExpression. 
Params:
element – the XML element/**
	 * Creates a {@link EnablementExpression}.
	 *
	 * @param element the XML element
	 */
	public EnablementExpression(Element element) {
		// element not used yet.
	}

	@Override
	public boolean equals(final Object object) {
		if (!(object instanceof EnablementExpression))
			return false;

		final EnablementExpression that= (EnablementExpression)object;
		return equals(this.fExpressions, that.fExpressions);
	}

	@Override
	public EvaluationResult evaluate(IEvaluationContext context) throws CoreException {
		long start= 0;
		if (Expressions.TRACING)
			start= System.currentTimeMillis();
		EvaluationResult result= evaluateAnd(context);
		if (Expressions.TRACING) {
			System.out.println("[Enablement Expression] - evaluation time: " + //$NON-NLS-1$
				(System.currentTimeMillis() - start) + " ms."); //$NON-NLS-1$
		}
		return result;
	}
}