Copyright (c) 2015 Google Inc 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:
    John Glassmyer  - import group sorting is broken - https://bugs.eclipse.org/430303
/*******************************************************************************
 * Copyright (c) 2015 Google Inc 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:
 *     John Glassmyer <jogl@google.com> - import group sorting is broken - https://bugs.eclipse.org/430303
 *******************************************************************************/
package org.eclipse.jdt.internal.core.dom.rewrite.imports;

import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

Encapsulates a set of imports to add and a set of imports to remove.
/**
 * Encapsulates a set of imports to add and a set of imports to remove.
 */
final class ImportsDelta {
	final Set<ImportName> importsToAdd;
	final Set<ImportName> importsToRemove;

	ImportsDelta(Collection<ImportName> importsToAdd, Collection<ImportName> importsToRemove) {
		this.importsToAdd = Collections.unmodifiableSet(new HashSet<ImportName>(importsToAdd));
		this.importsToRemove = Collections.unmodifiableSet(new HashSet<ImportName>(importsToRemove));
	}

	@Override
	public String toString() {
		return String.format(
				"(additions: %s, removals: %s)", //$NON-NLS-1$
				this.importsToAdd,
				this.importsToRemove);
	}
}