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javax.servlet.jsp.tagext Interface JspIdConsumer
- All Known Implementing Classes:
- UIComponentBodyTag, UIComponentClassicTagBase, UIComponentELTag, UIComponentTag
public interface JspIdConsumer
This interface indicates to the container that a tag handler wishes to be provided with a compiler generated ID.
The container sets the jspId
attribute
of the tag handler with an identification string, as part of tag
property initialization. Each tag in a JSP page has a unique
jspId
, and a given tag in a JSP page always has the same
jspId
,
even for multiple requests to the page.
Tag handler instances that implement JspIdConsumer
cannot be reused.
Even though the jspId
attribute is similar in concept to
the jsp:id
attribute of an XML view (see Section JSP.10.1.13 of the spec), they are
not related.
The jsp:id
attribute is available only at translation time,
and the jspId
attribute is avalable only at request time.
The JSP container must provide a value for jspId
that
conforms to the following rules:
- It must start with a letter (as defined by the
Character.isLetter()
method) or underscore ('_'). - Subsequent characters may be letters (as defined by the
Character.isLetter()
method), digits (as defined by theCharacter.isDigit()
method), dashes ('-'), or underscores ('_')
Note that the rules exclude colons ':' in a jspId
,
and that they are
the same rules used for a component ID in JavaServer Faces.
- Since:
- JSP 2.1
Method Summary | |
---|---|
void |
setJspId(String id)
Called by the container generated code to set a value for the jspId attribute. |
Method Detail |
---|
setJspId
void setJspId(String id)
- Called by the container generated code to set a value for the
jspId attribute. An unique identification string, relative to
this page, is generated at translation time.
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Copyright 2007 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.