/*

 * otr4j, the open source java otr library.

 *

 * Distributable under LGPL license.

 * See terms of license at gnu.org.

 */

package net.java.otr4j.session;

/**

 * 

 * @author George Politis

 * 

 */

public final class SessionID {

	public SessionID(String accountID, String userID, String protocolName) {

		this.setAccountID(accountID);

		this.setUserID(userID);

		this.setProtocolName(protocolName);

	}

	private String accountID;

	private String userID;

	private String protocolName;

	public static final SessionID Empty = new SessionID(null, null, null);

	public void setAccountID(String accountID) {

		this.accountID = accountID;

	}

	public String getAccountID() {

		return accountID;

	}

	private void setUserID(String userID) {

		this.userID = userID;

	}

	public String getUserID() {

		return userID;

	}

	private void setProtocolName(String protocolName) {

		this.protocolName = protocolName;

	}

	public String getProtocolName() {

		return protocolName;

	}

	public String toString() {

		return this.getAccountID() + "_" + this.getProtocolName() + "_"

				+ this.getUserID();

	}

	public boolean equals(Object obj) {

		if (obj == this)

			return true;

		if (obj == null || obj.getClass() != this.getClass())

			return false;

		SessionID sessionID = (SessionID) obj;

		return this.toString().equals(sessionID.toString());

	}

	public int hashCode() {

		return this.toString().hashCode();

	}

}