org.chwf.taglib.jutil
Class UseTag

java.lang.Object
  |
  +--javax.servlet.jsp.tagext.TagSupport
        |
        +--org.chwf.taglib.base.LifeCycleTagSupport
              |
              +--org.chwf.taglib.base.ObjectTagSupport
                    |
                    +--org.chwf.taglib.jutil.UseTag

All Implemented Interfaces:

Parameterized, java.io.Serializable, javax.servlet.jsp.tagext.Tag

public class UseTag

extends ObjectTagSupport

Tag handler for the <use> tag.

Author:

Paul Strack

See Also:

Serialized Form

Fields inherited from class org.chwf.taglib.base.ObjectTagSupport

DEFAULT_OBJECT

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

id, pageContext

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

EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE

Constructor Summary

UseTag()

Method Summary

void	cleanup() Clean up data for tag handler reuse and pooling.
int	doStart() Stores the retrieved bean in the specified variable.
java.lang.String	getController() The controller name.
static java.lang.Object	initBean(javax.servlet.jsp.PageContext pageContext, java.lang.String var, java.lang.Class controller, java.lang.String bean) Call bean initializer.
void	setController(java.lang.String controller) The controller name.
void	setProperty(java.lang.String property) Calls superclass method.
void	setVar(java.lang.String var) Calls superclass method.

Methods inherited from class org.chwf.taglib.base.ObjectTagSupport

findObject, getEl, getObject, getProperty, getTagResult, getTagResult, getVar, setEl, setObject, storeDefaultObject

Methods inherited from class org.chwf.taglib.base.LifeCycleTagSupport

addAttribute, addParameter, doEnd, doEndTag, doStartTag, getAttribute, getAttributeNames, getParameter, getParameterNames, init, printAttributes

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

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

Constructor Detail

UseTag

public UseTag()

Method Detail

cleanup

public void cleanup()

Clean up data for tag handler reuse and pooling. Should be overridden in tag handler. Subclasses should always invoke their superclass's cleanup method: super.cleanup()

Overrides:

cleanup in class ObjectTagSupport

setVar

public void setVar(java.lang.String var)

Calls superclass method. Is present here because of a bug in some servlet engines that requires tag attibute setters to be defined in the tag class itself.

Overrides:

setVar in class ObjectTagSupport

Parameters:

var - The object name.

setController

public void setController(java.lang.String controller)

The controller name.

Parameters:

controller - The controller name.

getController

public java.lang.String getController()

The controller name.

Returns:

The controller name.

setProperty

public void setProperty(java.lang.String property)
                 throws javax.servlet.jsp.JspException

Calls superclass method. Is present here because of a bug in some servlet engines that requires tag attibute setters to be defined in the tag class itself.

Overrides:

setProperty in class ObjectTagSupport

Parameters:

property - The property name.

Throws:

javax.servlet.jsp.JspException - For errors.

doStart

public int doStart()
            throws javax.servlet.jsp.JspException

Stores the retrieved bean in the specified variable.

Overrides:

doStart in class LifeCycleTagSupport

Returns:

SKIP_BODY

Throws:

javax.servlet.jsp.JspException - For controller exceptions.

initBean

public static java.lang.Object initBean(javax.servlet.jsp.PageContext pageContext,
                                        java.lang.String var,
                                        java.lang.Class controller,
                                        java.lang.String bean)
                                 throws ControllerException,
                                        javax.servlet.ServletException

Call bean initializer. Public to facilitate testing.

Parameters:

pageContext - The page context.

var - The variable name to store the bean.

controller - The controller.

bean - The bean name.

Returns:

The bean object.

Throws:

ControllerException - For controller exceptions.

javax.servlet.ServletException - For servlet exceptions.