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logic
Tag present

Generate the nested body content of this tag if the specified value is present in this request.

Depending on which attribute is specified, this tag checks the current request, and evaluates the nested body content of this tag only if the specified value is present. Only one of the attributes may be used in one occurrence of this tag, unless you use the property attribute, in which case the name attribute is also required.


Tag Information
Tag Classorg.apache.struts.taglib.logic.PresentTag
TagExtraInfo ClassNone
Body ContentJSP
Display NameNone

Attributes
NameRequiredRequest-timeTypeDescription
cookiefalsetruejava.lang.String

Checks for the existence of a cookie with the specified name.
headerfalsetruejava.lang.String

Checks for the existence of an HTTP header with the specified name. The name match is performed in a case insensitive manner.
namefalsetruejava.lang.String

Checks for the existence of a JSP bean, in any scope, with the specified name. If property is also specified, checks for a non-null property value for the specified property.
parameterfalsetruejava.lang.String

Checks for the existence of at least one occurrence of the specified request parameter on this request, even if the parameter value is a zero-length string.
propertyfalsetruejava.lang.String

Checks for the existence of a non-null property value, returned by a property getter method on the JSP bean (in any scope) that is specified by the name attribute. Property references can be simple, nested, and/or indexed.
rolefalsetruejava.lang.String

Checks whether the currently authenticated user (if any) has been associated with any of the specified security roles. Use a comma-delimited list to check for multiple roles. Example: <logic:present role="role1,role2,role3"> code..... </logic:present>
scopefalsetruejava.lang.String

The bean scope within which to search for the bean named by the name property, or "any scope" if not specified.
userfalsetruejava.lang.String

Checks whether the currently authenticated user principal has the specified name.

Variables
No Variables Defined.

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