package com.sjtu.model;

import org.acegisecurity.GrantedAuthority;
import org.apache.commons.lang.builder.ToStringBuilder;
import org.apache.commons.lang.builder.ToStringStyle;

import java.io.Serializable;

/**
 * This class is used to represent available roles in the database.
 * </p>
 * 
 * <p>
 * <a href="Role.java.html"><i>View Source</i></a>
 * </p>
 * 
 * @author <a href="mailto:matt@raibledesigns.com">Matt Raible</a> Version by
 *         Dan Kibler dan@getrolling.com Extended to implement Acegi
 *         GrantedAuthority interface by David Carter david@carter.net
 * 
 * @struts.form extends="BaseForm"
 * @hibernate.class table="role"
 */
public class Role extends BaseObject implements Serializable, GrantedAuthority {
	private static final long serialVersionUID = 3690197650654049848L;
	private Long id;
	private String name;
	private String description;

	public Role() {
	}

	public Role(String name) {
		this.name = name;
	}

	/**
	 * @hibernate.id column="id" generator-class="native" unsaved-value="null"
	 */
	public Long getId() {
		return id;
	}

	/**
	 * @see org.acegisecurity.GrantedAuthority#getAuthority()
	 */
	public String getAuthority() {
		return getName();
	}

	/**
	 * @hibernate.property column="name" length="20"
	 */
	public String getName() {
		return this.name;
	}

	/**
	 * @hibernate.property column="description" length="64"
	 */
	public String getDescription() {
		return this.description;
	}

	public void setId(Long id) {
		this.id = id;
	}

	public void setName(String name) {
		this.name = name;
	}

	public void setDescription(String description) {
		this.description = description;
	}

	public boolean equals(Object o) {
		if (this == o)
			return true;
		if (!(o instanceof Role))
			return false;

		final Role role = (Role) o;

		return !(name != null ? !name.equals(role.name) : role.name != null);

	}

	public int hashCode() {
		return (name != null ? name.hashCode() : 0);
	}

	public String toString() {
		return new ToStringBuilder(this, ToStringStyle.SIMPLE_STYLE).append(
				this.name).toString();
	}

}