org.apache.struts.taglib.html
Class BaseTag

java.lang.Object
  javax.servlet.jsp.tagext.TagSupport
      org.apache.struts.taglib.html.BaseTag

All Implemented Interfaces:

Serializable, IterationTag, Tag

Direct Known Subclasses:

ELBaseTag

public class BaseTag
extends TagSupport

Renders an HTML element with an href attribute pointing to the absolute location of the enclosing JSP page. This tag is only valid when nested inside a head tag body. The presence of this tag allows the browser to resolve relative URL's to images, CSS stylesheets and other resources in a manner independent of the URL used to call the ActionServlet.

Version:

$Rev: 471754 $ $Date: 2005-09-20 02:29:01 -0400 (Tue, 20 Sep 2005) $

See Also:

Serialized Form

Field Summary

protected static MessageResources	messages The message resources for this package.
protected String	ref The reference to which the base will created.
protected String	REF_PAGE
protected String	REF_SITE
protected String	server The server name to use instead of request.getServerName().
protected String	target The target window for this base reference.

Fields inherited from class javax.servlet.jsp.tagext.TagSupport

id, pageContext

Fields inherited from interface javax.servlet.jsp.tagext.IterationTag

EVAL_BODY_AGAIN

Fields inherited from interface javax.servlet.jsp.tagext.Tag

EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE

Constructor Summary

BaseTag()

Method Summary

int	doStartTag() Process the start of this tag.
String	getRef() Gets the reference to which the base will be created
String	getServer() Returns the server.
String	getTarget()
protected String	renderBaseElement(String scheme, String serverName, int port, String uri) Render a fully formed HTML <base> element and return it as a String.
void	setRef(String ref) Sets the reference to which the base will be created.
void	setServer(String server) Sets the server.
void	setTarget(String target)

Methods inherited from class javax.servlet.jsp.tagext.TagSupport

doAfterBody, doEndTag, findAncestorWithClass, getId, getParent, getValue, getValues, release, removeValue, setId, setPageContext, setParent, setValue

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

messages

protected static MessageResources messages

The message resources for this package.

REF_SITE

protected final String REF_SITE

See Also:

Constant Field Values

REF_PAGE

protected final String REF_PAGE

See Also:

Constant Field Values

server

protected String server

The server name to use instead of request.getServerName().

target

protected String target

The target window for this base reference.

ref

protected String ref

The reference to which the base will created.

Constructor Detail

BaseTag

public BaseTag()

Method Detail

getRef

public String getRef()

Gets the reference to which the base will be created

setRef

public void setRef(String ref)

Sets the reference to which the base will be created.

Parameters:

ref - Either "page" to render the base as the jsp path located, or "site" as the application's context

getTarget

public String getTarget()

setTarget

public void setTarget(String target)

doStartTag

public int doStartTag()
               throws JspException

Process the start of this tag.

Specified by:

doStartTag in interface Tag

Overrides:

doStartTag in class TagSupport

Throws:

JspException - if a JSP exception has occurred

renderBaseElement

protected String renderBaseElement(String scheme,
                                   String serverName,
                                   int port,
                                   String uri)

Render a fully formed HTML <base> element and return it as a String.

Parameters:

scheme - The scheme used in the url (ie. http or https).

serverName -

port -

uri - The portion of the url from the protocol name up to the query string.

Returns:

String An HTML <base> element.

Since:

Struts 1.1

getServer

public String getServer()

Returns the server.

Returns:

String

setServer

public void setServer(String server)

Sets the server.

Parameters:

server - The server to set