org.apache.struts.taglib.logic

Class MessagesPresentTag

Known Direct Subclasses:
MessagesNotPresentTag, NestedMessagesPresentTag

public class MessagesPresentTag
extends ConditionalTagBase

Evalute to true if an ActionMessages class or a class that can be converted to an ActionMessages class is in request scope under the specified key and there is at least one message in the class or for the property specified.
Version:
$Rev: 54929 $ $Date: 2004-10-16 17:38:42 +0100 (Sat, 16 Oct 2004) $
Since:
Struts 1.1

Field Summary

protected String
message
If this is set to 'true', then the Globals.MESSAGE_KEY will be used to retrieve the messages from scope.

Fields inherited from class org.apache.struts.taglib.logic.ConditionalTagBase

cookie, header, messages, name, parameter, property, role, scope, user

Constructor Summary

MessagesPresentTag()

Method Summary

protected boolean
condition()
Evaluate the condition that is being tested by this particular tag, and return true if the nested body content of this tag should be evaluated, or false if it should be skipped.
protected boolean
condition(boolean desired)
Evaluate the condition that is being tested by this particular tag, and return true if there is at least one message in the class or for the property specified.
String
getMessage()
void
release()
Release all allocated resources.
void
setMessage(String message)

Methods inherited from class org.apache.struts.taglib.logic.ConditionalTagBase

condition, doEndTag, doStartTag, getCookie, getHeader, getName, getParameter, getProperty, getRole, getScope, getUser, release, setCookie, setHeader, setName, setParameter, setProperty, setRole, setScope, setUser

Field Details

message

protected String message
If this is set to 'true', then the Globals.MESSAGE_KEY will be used to retrieve the messages from scope.

Constructor Details

MessagesPresentTag

public MessagesPresentTag()

Method Details

condition

protected boolean condition()
            throws JspException
Evaluate the condition that is being tested by this particular tag, and return true if the nested body content of this tag should be evaluated, or false if it should be skipped. This method must be implemented by concrete subclasses.
Overrides:
condition in interface ConditionalTagBase

condition

protected boolean condition(boolean desired)
            throws JspException
Evaluate the condition that is being tested by this particular tag, and return true if there is at least one message in the class or for the property specified. This method must be implemented by concrete subclasses.
Parameters:
desired - Desired outcome for a true result

getMessage

public String getMessage()

release

public void release()
Release all allocated resources.
Overrides:
release in interface ConditionalTagBase

setMessage

public void setMessage(String message)

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