/*

 * otr4j, the open source java otr library.

 *

 * Distributable under LGPL license.

 * See terms of license at gnu.org.

 */

package net.java.otr4j.io.messages;

import java.util.List;

/**

 * 

 * @author George Politis

 */

public class QueryMessage extends AbstractMessage {

	// Fields.

	public List<Integer> versions;

	// Ctor.

	protected QueryMessage(int messageType, List<Integer> versions) {

		super(messageType);

		this.versions = versions;

	}

	public QueryMessage(List<Integer> versions) {

		this(MESSAGE_QUERY, versions);

	}

	// Methods.

	@Override

	public int hashCode() {

		final int prime = 31;

		int result = super.hashCode();

		result = prime * result

				+ ((versions == null) ? 0 : versions.hashCode());

		return result;

	}

	@Override

	public boolean equals(Object obj) {

		if (this == obj)

			return true;

		if (!super.equals(obj))

			return false;

		if (getClass() != obj.getClass())

			return false;

		QueryMessage other = (QueryMessage) obj;

		if (versions == null) {

			if (other.versions != null)

				return false;

		} else if (!versions.equals(other.versions))

			return false;

		return true;

	}

}