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/*******************************************************************************
* Copyright (c) 2009 THALES GLOBAL SERVICES.
* 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.sirius.diagram.ui.tools.internal.layout.semantic;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.sirius.diagram.ui.tools.api.layout.LayoutDataKey;
import com.google.common.base.Objects;
/**
* Common behavior for Semantic*LayoutDataKey classes.
*
* @author dlecan
*/
public abstract class AbstractSemanticLayoutDataKey implements LayoutDataKey, Comparable<AbstractSemanticLayoutDataKey> {
/** URI Fragment of the element's target semantic element. */
private final String semanticElementURIFragment;
/**
* Constructor.
*
* @param semanticElement
* The element the create the key.
*/
public AbstractSemanticLayoutDataKey(final EObject semanticElement) {
this.semanticElementURIFragment = EcoreUtil.getURI(semanticElement).fragment();
}
/**
* Constructor.
*
* @param uriFragment
* String to use to create the new key.
*/
public AbstractSemanticLayoutDataKey(final String uriFragment) {
semanticElementURIFragment = uriFragment;
}
protected String getSemanticElementURIFragment() {
return semanticElementURIFragment;
}
/**
* {@inheritDoc}
*
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
return Objects.hashCode(semanticElementURIFragment);
}
/**
* {@inheritDoc}
*
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(final Object obj) {
boolean result = false;
if (this == obj) {
result = true;
} else if (obj != null && getClass().isAssignableFrom(obj.getClass()) && getSemanticElementURIFragment() != null) {
result = getId().equals(((LayoutDataKey) obj).getId());
}
return result;
}
/**
* {@inheritDoc}
*/
@Override
public String toString() {
return "Key ID: " + getId(); //$NON-NLS-1$
}
/**
* {@inheritDoc}
*/
public String getId() {
return getSemanticElementURIFragment();
}
/**
* {@inheritDoc}
*/
public int compareTo(final AbstractSemanticLayoutDataKey o) {
return getId().compareTo(o.getId());
}
}
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