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/*******************************************************************************
* Copyright (c) 2007, 2017 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.equinox.internal.p2.metadata;
import org.eclipse.equinox.p2.metadata.IRequirementChange;
public class RequirementChange implements IRequirementChange {
private IRequiredCapability applyOn;
private IRequiredCapability newValue;
public RequirementChange(IRequiredCapability applyOn2, IRequiredCapability newValue2) {
if (applyOn2 == null && newValue2 == null)
throw new IllegalArgumentException();
this.applyOn = applyOn2;
this.newValue = newValue2;
}
@Override
public IRequiredCapability applyOn() {
return applyOn;
}
@Override
public IRequiredCapability newValue() {
return newValue;
}
@Override
public boolean matches(IRequiredCapability toMatch) {
if (!toMatch.getNamespace().equals(applyOn.getNamespace()))
return false;
if (!toMatch.getName().equals(applyOn.getName()))
return false;
if (toMatch.getRange().equals(applyOn.getRange()))
return true;
return toMatch.getRange().intersect(applyOn.getRange()) != null;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((applyOn == null) ? 0 : applyOn.hashCode());
result = prime * result + ((newValue == null) ? 0 : newValue.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (!(obj instanceof IRequirementChange))
return false;
final IRequirementChange other = (IRequirementChange) obj;
if (applyOn == null) {
if (other.applyOn() != null)
return false;
} else if (!applyOn.equals(other.applyOn()))
return false;
if (newValue == null) {
if (other.newValue() != null)
return false;
} else if (!newValue.equals(other.newValue()))
return false;
return true;
}
@Override
public String toString() {
return applyOn + " --> " + newValue; //$NON-NLS-1$
}
}
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