org.apache.struts.taglib.logic

Class MessagesPresentTag

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.

Since: Struts 1.1

Version: $Rev: 54929 $ $Date: 2004-10-16 17:38:42 +0100 (Sat, 16 Oct 2004) $

Field Summary
protected Stringmessage
If this is set to 'true', then the Globals.MESSAGE_KEY will be used to retrieve the messages from scope.
Constructor Summary
MessagesPresentTag()
Method Summary
protected booleancondition()
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 booleancondition(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.
StringgetMessage()
voidrelease()
Release all allocated resources.
voidsetMessage(String message)

Field Detail

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 Detail

MessagesPresentTag

public MessagesPresentTag()

Method Detail

condition

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. This method must be implemented by concrete subclasses.

Throws: JspException if a JSP exception occurs

condition

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. This method must be implemented by concrete subclasses.

Parameters: desired Desired outcome for a true result

Throws: JspException if a JSP exception occurs

getMessage

public String getMessage()

release

public void release()
Release all allocated resources.

setMessage

public void setMessage(String message)
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