Java Reference
In-Depth Information
The
TagExtraInfo
Class
public abstract class TagExtraInfo extends java.lang.Object
This class provides extra tag information for a custom tag. It is mentioned in the TLD. This
class must be used if the tag defines any scripting variables, or if the tag wants to provide
translation-time validation of the tag attributes. The
TagExtraInfo
class has one field and five
methods, described in the following sections.
The
tagInfo
Field
protected TagInfo tagInfo
This field holds a reference to the
TagInfo
object.
The TagExtraInfo() Method
public TagExtraInfo()
This method is the default empty constructor for the
TagExtraInfo
class.
TagExtraInfo()
has
no parameters, returns no value, and throws no exceptions.
The
getTagInfo()
Method
public TagInfo getTagInfo()
This method returns the
TagInfo
object for this class.
getTagInfo()
has no parameters and
throws no exceptions.
It returns this value:
•
TagInfo
The
getVariableInfo()
Method
public VariableInfo[] getVariableInfo(TagData data)
This method returns information on scripting variables defined by this tag.
getVariableInfo()
throws no exceptions.
It takes one parameter:
•
TagData
It returns this value:
•
VariableInfo[]
