org.apache.struts.taglib.logic
Class MessagesPresentTag
java.lang.Object
javax.servlet.jsp.tagext.TagSupport
org.apache.struts.taglib.logic.ConditionalTagBase
org.apache.struts.taglib.logic.MessagesPresentTag
- All Implemented Interfaces:
- Serializable, IterationTag, Tag
- Direct Known Subclasses:
- ELMessagesPresentTag, 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.
- Since:
- Struts 1.1
- Version:
- $Rev: 471754 $ $Date: 2005-11-19 12:36:20 -0500 (Sat, 19 Nov 2005)
$
- See Also:
- Serialized Form
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. |
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 |
doEndTag, doStartTag, getCookie, getHeader, getName, getParameter, getProperty, getRole, getScope, getUser, setCookie, setHeader, setName, setParameter, setProperty, setRole, setScope, setUser |
Methods inherited from class javax.servlet.jsp.tagext.TagSupport |
doAfterBody, findAncestorWithClass, getId, getParent, getValue, getValues, removeValue, setId, setPageContext, setParent, setValue |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
message
protected String message
- If this is set to 'true', then the
Globals.MESSAGE_KEY
will be used to retrieve the messages from scope.
MessagesPresentTag
public MessagesPresentTag()
getMessage
public String getMessage()
setMessage
public void setMessage(String message)
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.
- Specified by:
condition
in class ConditionalTagBase
- Throws:
JspException
- if a JSP exception occurs
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.
- Parameters:
desired
- Desired outcome for a true result
- Throws:
JspException
- if a JSP exception occurs
release
public void release()
- Release all allocated resources.
- Specified by:
release
in interface Tag
- Overrides:
release
in class ConditionalTagBase
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