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/*******************************************************************************
* Copyright (c) 2008, 2010 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
* Sonatype Inc - Refactoring
*******************************************************************************/
package org.eclipse.equinox.p2.planner;
import org.eclipse.equinox.p2.metadata.IInstallableUnit;
/**
* Helper method to decide on the way the installable units are being included.
* @noinstantiate This class is not intended to be instantiated by clients.
* @noextend This class is not intended to be subclassed by clients.
* @since 2.0
*/
public class ProfileInclusionRules {
private ProfileInclusionRules() {
//Can't instantiate profile inclusion rules
}
/**
* Returns an inclusion rule to strictly install the given installable unit. Strictly
* installed installable units will never be uninstalled in order to satisfy a
* later profile change request. That is, when there is a dependency conflict
* between a strictly installed unit and a non-strict unit, the strictly installed
* installable unit will take precedence.
*
* @param iu the installable unit to be installed.
* @return an opaque token to be passed to the {@link IProfileChangeRequest#setInstallableUnitInclusionRules(IInstallableUnit, String)}
*/
public static String createStrictInclusionRule(IInstallableUnit iu) {
return "STRICT"; //$NON-NLS-1$
}
/**
* Returns an inclusion rule to optionally install the given installable unit. An optionally
* installed installable unit will automatically be removed from the profile if any of
* its dependencies become unsatisfied.
*
* @param iu the installable unit to be installed.
* @return an opaque token to be passed to the {@link IProfileChangeRequest#setInstallableUnitInclusionRules(IInstallableUnit, String)}
*/
public static String createOptionalInclusionRule(IInstallableUnit iu) {
return "OPTIONAL"; //$NON-NLS-1$
}
}
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