OptionItem.java

 /*
  * RHQ Management Platform
  * Copyright (C) 2005-2008 Red Hat, Inc.
  * All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, version 2, as
  * published by the Free Software Foundation, and/or the GNU Lesser
  * General Public License, version 2.1, also as published by the Free
  * Software Foundation.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  * GNU General Public License and the GNU Lesser General Public License
  * for more details.
  *
  * You should have received a copy of the GNU General Public License
  * and the GNU Lesser General Public License along with this program;
  * if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
package org.rhq.core.domain.common.composite;

import java.io.Serializable;

public class OptionItem<T> implements Serializable {
    private static final long serialVersionUID = 1L;

    private final T id;
    private final String displayName;

    public OptionItem(T id, String displayName) {
        super();
        this.id = id;
        this.displayName = displayName;
    }

    public T getId() {
        return id;
    }

    public String getDisplayName() {
        return displayName;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = (prime * result) + id.hashCode();
        result = (prime * result) + ((displayName == null) ? 0 : displayName.hashCode());
        return result;
    }

    @Override
    @SuppressWarnings("unchecked")
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }

        if (obj == null) {
            return false;
        }

        if (getClass() != obj.getClass()) {
            return false;
        }

        final OptionItem<T> other = (OptionItem<T>) obj;
        if (id.equals(other.id) == false) {
            return false;
        }

        if (displayName == null) {
            if (other.displayName != null) {
                return false;
            }
        } else if (!displayName.equals(other.displayName)) {
            return false;
        }

        return true;
    }
}