Package nl.gx.webmanager.taglib.util

Class ContainsPropertyTag

java.lang.Object

javax.servlet.jsp.tagext.SimpleTagSupport

nl.gx.webmanager.taglib.util.ContainsPropertyTag

All Implemented Interfaces:

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

public class ContainsPropertyTag
extends javax.servlet.jsp.tagext.SimpleTagSupport

Implements the containsProperty tag. Checks whether the class specified by attribute object has a certain method that return property , which is specified by attribute property. The result of the check can be placed in the pageContext under the key specified by the attribute var. Example:

        <wmedit:containsProperty var="prop" object="${editcontext.baseObject}" 
                                          property="propertyName" />
 

This tag checks if object class set with ${editcontext.baseObject} parameter contains getter method for propertyName parameter. Boolean value is converted to String and bind to prop variable in the page context. This variable may later be used in page to, for example, display or omit parts of the page.

Author:

md.pavkovic version 1.0

Constructor Summary

Constructors

Constructor	Description
ContainsPropertyTag()

Method Summary

Modifier and Type	Method	Description
boolean	containsProperty()	Check if Class contains getter method for attribute property.
void	doTag()	Sets the key in the pageContext specified by attribute var
Object	getObject()	Return the required object class attribute
String	getProperty()	Returns the required property attribute.
String	getVar()	Return the name of the variable to which the 'true' or 'false' value will be assigned or null if not set.
void	setObject(Object object)	Setter for the required object attribute.
void	setProperty(String property)	Setter for the required property attribute.
void	setVar(String var)	Setter for the optional var attribute.

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

ContainsPropertyTag

public ContainsPropertyTag()

Method Detail

getVar

public String getVar()

Return the name of the variable to which the 'true' or 'false' value will be assigned or null if not set.

Returns:

the var

setVar

public void setVar(String var)

Setter for the optional var attribute.

Parameters:

var - the var to set

getObject

public Object getObject()

Return the required object class attribute

Returns:

the object

setObject

public void setObject(Object object)

Setter for the required object attribute.

Parameters:

object - the object to set

getProperty

public String getProperty()

Returns the required property attribute.

Returns:

the property

setProperty

public void setProperty(String property)

Setter for the required property attribute.

Parameters:

property - the property to set

containsProperty

public boolean containsProperty()

Check if Class contains getter method for attribute property.

Returns:

true if class contains getMethodName or isMethodName getter method for given property otherwise return false

doTag

public void doTag()
           throws javax.servlet.jsp.JspException

Sets the key in the pageContext specified by attribute var

Specified by:

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

Overrides:

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

Throws:

javax.servlet.jsp.JspException

See Also:

SimpleTag.doTag()