Name
VariableInfo Class
Class name:
javax.servlet.jsp.tagext.VariableInfo
Extends:
None
Implements:
None
Implemented by:
Internal container-dependent class. Most containers use the reference implementation of the class (developed in the Apache Jakarta project).
Description
VariableInfo
instances are created by
TagExtraInfo
subclasses to describe each scripting
variable that the corresponding tag handler class creates.
Constructor
-
public VariableInfo(String varName, String className,
boolean declare, int scope)
Creates a new instance with the specified values.
Methods
-
public String getClassName()
Returns the scripting variable’s Java type.
-
public boolean getDeclare()
Returns
true
if the web container creates a declaration statement for the scripting variable; otherwise, returnsfalse
(used if the variable has already been declared by another tag handler and is only updated by the tag handler corresponding to theTagExtraInfo
subclass creating thisVariableInfo
instance).-
public int getScope()
Returns one of
AT_BEGIN
(makes the scripting variable available from the start tag to the end of the JSP page),AT_END
(makes the variable available from after the end tag to the end of the JSP page), orNESTED
(makes the variable available only between the start and stop tags).-
public String getVarName()
Returns the variable name.
Example
Here’s an example of a TagExtraInfo
subclass
for a custom action that creates a variable with the name specified
by the id
attribute and the Java type specified ...
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