org.zkoss.jsp.zul.impl
Class RootTag

java.lang.Object
  javax.servlet.jsp.tagext.SimpleTagSupport
      org.zkoss.jsp.zul.impl.AbstractTag
          org.zkoss.jsp.zul.impl.RootTag

All Implemented Interfaces:

javax.servlet.jsp.tagext.JspTag, javax.servlet.jsp.tagext.SimpleTag

Direct Known Subclasses:

PageTag

public abstract class RootTag
extends AbstractTag

A skeletal class to implement the root ZK tag. Currently, only the page tag (PageTag) extends from this class.

The derive may override init(org.zkoss.zk.ui.Execution, org.zkoss.zk.ui.Page) to initialize the page.

Author:

tomyeh

Constructor Summary

protected

RootTag() protected Constractor.

Method Summary

void	addChildTag(ComponentTag child) Adds a child tag.
void	doTag() To process this root tag.
org.zkoss.zk.ui.Page	getPage()
java.lang.String	getZScriptLanguage() Returns the default scripting language.
protected void	init(org.zkoss.zk.ui.Execution exec, org.zkoss.zk.ui.Page page) Initializes the page.
void	processZScript(org.zkoss.zk.ui.Component parent, org.zkoss.zk.ui.metainfo.ZScript zs) Root tag was supposed to handle all children's ZScript.
void	setZscriptLanguage(java.lang.String lang) Sets the defult scripting language in this Root tag.
void	setZScriptLanguage(java.lang.String lang) Sets the defult scripting language in this Root tag.

Methods inherited from class org.zkoss.jsp.zul.impl.AbstractTag

getIf, getUnless, isEffective, setIf, setUnless

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

findAncestorWithClass, getJspBody, getJspContext, getParent, setJspBody, setJspContext, setParent

Methods inherited from class java.lang.Object

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

Constructor Detail

RootTag

protected RootTag()

protected Constractor. Constract a RootTag with LanguageDefinition = "xul/html".

Method Detail

getPage

public org.zkoss.zk.ui.Page getPage()

Returns:

the current ZK Page of this jsp page.

addChildTag

public void addChildTag(ComponentTag child)

Adds a child tag.

getZScriptLanguage

public java.lang.String getZScriptLanguage()

Returns the default scripting language.

setZScriptLanguage

public void setZScriptLanguage(java.lang.String lang)

Sets the defult scripting language in this Root tag.

Default: Java.

Parameters:

lang - the name of the scripting language, such as Java, Ruby and Groovy.

setZscriptLanguage

public void setZscriptLanguage(java.lang.String lang)

Sets the defult scripting language in this Root tag. It is the same as setZScriptLanguage(java.lang.String) (used to simplify the typing in JSP page).

init

protected void init(org.zkoss.zk.ui.Execution exec,
                    org.zkoss.zk.ui.Page page)

Initializes the page. It is called after the page is created, and before any component is created.

Default: does nothing

Parameters:

exec - the execution. Note: when this method is called, the execution is not activated. For example, Executions.getCurrent() returns null.

page - the page

doTag

public void doTag()
           throws javax.servlet.jsp.JspException,
                  java.io.IOException

To process this root tag. The deriving class rarely need to override this method.

Specified by:

doTag in interface javax.servlet.jsp.tagext.SimpleTag

Overrides:

doTag in class javax.servlet.jsp.tagext.SimpleTagSupport

Throws:

javax.servlet.jsp.JspException

java.io.IOException

processZScript

public void processZScript(org.zkoss.zk.ui.Component parent,
                           org.zkoss.zk.ui.metainfo.ZScript zs)
                    throws java.io.IOException

Root tag was supposed to handle all children's ZScript.

Parameters:

parent - The owner of zscript segment.

zs - A ZScript object.

Throws:

java.io.IOException