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/*******************************************************************************
* Copyright (c) 2009 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
******************************************************************************/
package org.eclipse.e4.core.internal.tests.contexts;
import org.eclipse.e4.core.contexts.ContextFunction;
import org.eclipse.e4.core.contexts.IEclipseContext;
/**
* A function provided as a declarative service. See OSGI-INF/adder.xml.
*/
public class AddContextFunction extends ContextFunction {
/*
* (non-Javadoc)
*
* @see org.eclipse.e4.core.services.context.spi.ContextFunction#compute(org.
* eclipse.e4.core.services.context.IEclipseContext, java.lang.Object[])
*/
public Object compute(IEclipseContext context, String contextKey) {
Integer xInt = (Integer) context.get("x");
Integer yInt = (Integer) context.get("y");
int sum = xInt == null ? 0 : xInt.intValue();
sum += yInt == null ? 0 : yInt.intValue();
return new Integer(sum);
}
}
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