package net.ramapuram.thomas.model;
   
   import org.apache.commons.lang.builder.ToStringBuilder;
   import org.apache.commons.lang.builder.ToStringStyle;
   import org.springframework.security.core.GrantedAuthority;
   
   import javax.persistence.Column;
   import javax.persistence.Entity;
   import javax.persistence.GeneratedValue;
  import javax.persistence.GenerationType;
  import javax.persistence.Id;
  import javax.persistence.NamedQueries;
  import javax.persistence.NamedQuery;
  import javax.persistence.Table;
  import javax.persistence.Transient;
  import java.io.Serializable;
  
  /**
   * This class is used to represent available roles in the database.
   *
   * @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
   */
  @Entity
  @Table(name = "role")
  @NamedQueries({
          @NamedQuery(
                  name = "findRoleByName",
                  query = "select r from Role r where r.name = :name "
          )
  })
  public class Role extends BaseObject implements Serializable, GrantedAuthority {
      private static final long serialVersionUID = 3690197650654049848L;
      private Long id;
      private String name;
      private String description;
  
      /**
       * Default constructor - creates a new instance with no values set.
       */
      public Role() {
      }
  
      /**
       * Create a new instance and set the name.
       *
       * @param name name of the role.
       */
      public Role(final String name) {
          this.name = name;
      }
  
      @Id
      @GeneratedValue(strategy = GenerationType.AUTO)
      public Long getId() {
          return id;
      }
  
      /**
       * @return the name property (getAuthority required by Acegi's GrantedAuthority interface)
       * @see org.springframework.security.core.GrantedAuthority#getAuthority()
       */
      @Transient
      public String getAuthority() {
          return getName();
      }
  
      @Column(length = 20)
      public String getName() {
          return this.name;
      }
  
      @Column(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;
      }
  
      /**
       * {@inheritDoc}
       */
      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);
 
     }
 
     /**
      * {@inheritDoc}
      */
     public int hashCode() {
         return (name != null ? name.hashCode() : 0);
     }
 
     /**
      * {@inheritDoc}
      */
     public String toString() {
         return new ToStringBuilder(this, ToStringStyle.SIMPLE_STYLE)
                 .append(this.name)
                 .toString();
     }
 
     /**
      * {@inheritDoc}
      */
     public int compareTo(Object o) {
         return (equals(o) ? 0 : -1);
     }
 }