taglib"
m |
m (correct highlight (via JWB)) |
||
(2 intermediate revisions by one other user not shown) | |||
Line 1: | Line 1: | ||
{{ZESTEssentialsPageHeader}} | {{ZESTEssentialsPageHeader}} | ||
+ | |||
+ | __NOTOC__ | ||
'''Syntax:''' | '''Syntax:''' | ||
<tablib uri="''myURI''" prefix="''my''"/> | <tablib uri="''myURI''" prefix="''my''"/> | ||
− | It is used to load a < | + | It is used to load a <code>taglib</code> file, which defines a set of static methods that can be used in EL expressions (so called EL functions). |
For example, we could load functions defined in the built-in TLD files identified as [[ZUML Reference/EL Expressions/Core Methods|http://www.zkoss.org/dsp/web/core]], and then use [[ZUML Reference/EL Expressions/Core Methods/toLowerCase|the toLowerCase function]]. | For example, we could load functions defined in the built-in TLD files identified as [[ZUML Reference/EL Expressions/Core Methods|http://www.zkoss.org/dsp/web/core]], and then use [[ZUML Reference/EL Expressions/Core Methods/toLowerCase|the toLowerCase function]]. | ||
Line 25: | Line 27: | ||
=Attributes= | =Attributes= | ||
− | ==The uri Attribute= | + | ==The uri Attribute== |
[Required][EL is ''not'' allowed] | [Required][EL is ''not'' allowed] | ||
− | A URL of the < | + | A URL of the <code>taglib</code> file. Unlike other URL and URI, it doesn't interpret ~ or * specially. And, the page and the <code>taglib</code> files it references must be in the same Web application. |
== The prefix Attribute == | == The prefix Attribute == | ||
Line 35: | Line 37: | ||
[Required] | [Required] | ||
− | A prefix used to identify functions defined in this < | + | A prefix used to identify functions defined in this <code>taglib</code> file. The prefix could be any non-empty string. |
=Version History= | =Version History= |
Latest revision as of 02:57, 18 January 2022
Syntax:
<tablib uri="myURI" prefix="my"/>
It is used to load a taglib
file, which defines a set of static methods that can be used in EL expressions (so called EL functions).
For example, we could load functions defined in the built-in TLD files identified as http://www.zkoss.org/dsp/web/core, and then use the toLowerCase function.
<taglib uri="http://www.zkoss.org/dsp/web/core" prefix="c"/>
<action pattern="/hello" method="c:toLowerCase(request.method)" class="foo.Hello">
...
If you want to load a TLD file from your Web application, you can specify the path directly. For example, suppose you have a custom TLD at /WEB-INF/tld/my.tld
, then you could specify it as follows.
<taglib uri="/WEB-INF/tld/my.tld" prefix="my"/>
For more information about the syntax of a custom taglib, please refer to ZUML Reference.
If you'd like to define a couple of EL functions, you could use the xel-method element instead.
Attributes
The uri Attribute
[Required][EL is not allowed]
A URL of the taglib
file. Unlike other URL and URI, it doesn't interpret ~ or * specially. And, the page and the taglib
files it references must be in the same Web application.
The prefix Attribute
[Required]
A prefix used to identify functions defined in this taglib
file. The prefix could be any non-empty string.
Version History
Version | Date | Content |
---|---|---|