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Subject: Cache Keys
Date: Thu, 1 Sep 2005 11:30:36 -0700
Message-ID: <E9524BA8F2961B4EB7E900873DFAB44902900013@exbesv01.Interwoven.com>
Thread-Topic: Cache Keys
Thread-Index: AcWucueJIkw+LlnHQ8OxNhdRhcwtLAAsBAVg
From: "Tim Cronin" <tcronin@interwoven.com>
To: "JCS Users List" <jcs-users@jakarta.apache.org>

I'm using and object as the cache key is there something special I have
to do?

Here is my key class

public class Key implements Serializable
{
  /**
   * the site
   */
  private String mSite =3D null;

  /**
   * the page
   */
  private String mPage =3D null;

  /**
   * the locale
   */
  private String mLocale =3D null;

  /**
   * the component ID
   */
  private String mComponent =3D null;

=20
/***********************************************************************
******
   * create new Key (used for purge)
   *
   * @param site the site
=20
************************************************************************
*****/
  public Key(String site)
  {
    mSite =3D site;
  }

=20
/***********************************************************************
******
   * create new Key (used for purge)
   *
   * @param site the site
   * @param page the page
=20
************************************************************************
*****/
  public Key(String site, String page)
  {
    mSite =3D site;
    mPage =3D page;
  }

=20
/***********************************************************************
******
   * create new Key (for page)
   *
   * @param site the site
   * @param page the page
   * @param locale the locale
=20
************************************************************************
*****/
  public Key(String site, String page, String locale)
  {
    mLocale =3D locale;
    mPage =3D page;
    mSite =3D site;
  }

=20
/***********************************************************************
******
   * create new Key (for component key)
   *
   * @param k the key (for the page)
   * @param component the component
=20
************************************************************************
*****/
  public Key(Key k, String component)
  {
    mSite =3D k.mSite;
    mPage =3D k.mPage;
    mLocale =3D k.mLocale;
    mComponent =3D component;
  }

=20
/***********************************************************************
******
   * Gets The component.
   *
   * @return Returns the component.
=20
************************************************************************
*****/
  public String getComponent()
  {
    return mComponent;
  }

=20
/***********************************************************************
******
   * Gets The locale.
   *
   * @return Returns the locale.
=20
************************************************************************
*****/
  public String getLocale()
  {
    return mLocale;
  }

=20
/***********************************************************************
******
   * Gets The page.
   *
   * @return Returns the page.
=20
************************************************************************
*****/
  public String getPage()
  {
    return mPage;
  }

=20
/***********************************************************************
******
   * Gets The site.
   *
   * @return Returns the site.
=20
************************************************************************
*****/
  public String getSite()
  {
    return mSite;
  }

=20
/***********************************************************************
******
   * get the xpath logic to use to filter cache options
   *
   * @return the xpath logic string
=20
************************************************************************
*****/
  public String getXPath()
  {
    StringBuffer buff =3D new StringBuffer();

=20
buff.append("[@site=3D'").append(StringEscapeUtils.escapeJava(mSite)).app=
e
nd("'");

    if (mPage !=3D null)
    {
      buff.append(" and
@page=3D'").append(StringEscapeUtils.escapeJava(mPage)).append("'");
    }

    buff.append("]");

    return buff.toString();
  }
=20
/***********************************************************************
******
   * @see java.lang.Object#equals(java.lang.Object)
=20
************************************************************************
*****/
  public boolean equals(Object o)
  {
    if (o instanceof Key)
    {
      return false;
    }
    if (this =3D=3D o)
    {
      return true;
    }
    Key that =3D (Key) o;
    return new EqualsBuilder()
      .append(mSite, that.mSite)
      .append(mPage, that.mPage)
      .append(mLocale, that.mLocale)
      .append(mComponent, that.mComponent)
      .isEquals();
  }

=20
/***********************************************************************
******
   * @see java.lang.Object#hashCode()
=20
************************************************************************
*****/
  public int hashCode()
  {
    return new HashCodeBuilder()
      .append(mSite)
      .append(mPage)
      .append(mLocale)
      .append(mComponent)
      .toHashCode();
  }

=20
/***********************************************************************
******
   * @see java.lang.Object#toString()
=20
************************************************************************
*****/
  public String toString()
  {
    return new ToStringBuilder(this)
      .append("mSite", mSite)
      .append("mPage", mPage)
      .append("mLocale", mLocale)
      .append("mComponent", mComponent)
      .toString();
  }
}

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