org.apache.myfaces.taglib.core
Class AttributeTag
java.lang.Object
javax.servlet.jsp.tagext.TagSupport
org.apache.myfaces.taglib.core.AttributeTag
- All Implemented Interfaces:
- java.io.Serializable, javax.servlet.jsp.tagext.IterationTag, javax.servlet.jsp.tagext.JspTag, javax.servlet.jsp.tagext.Tag
@JSFJspTag(name="f:attribute",
bodyContent="empty")
public class AttributeTag
- extends javax.servlet.jsp.tagext.TagSupport
This tag associates an attribute with the nearest parent UIComponent.
When the value is not an EL expression, this tag has the same effect as calling component.getAttributes.put(name,
value). When the attribute name specified matches a standard property of the component, that property is set. However
it is also valid to assign attributes to components using any arbitrary name; the component itself won't make any use
of these but other objects such as custom renderers, validators or action listeners can later retrieve the attribute
from the component by name.
When the value is an EL expression, this tag has the same effect as calling component.setValueBinding. A call to
method component.getAttributes().get(name) will then cause that expression to be evaluated and the result of the
expression is returned, not the original EL expression string.
See the javadoc for UIComponent.getAttributes for more details.
Unless otherwise specified, all attributes accept static values or EL expressions.
- Version:
- $Revision: 819754 $ $Date: 2009-09-28 17:27:45 -0500 (Mon, 28 Sep 2009) $
- Author:
- Manfred Geiler (latest modification by $Author: lu4242 $), Bruno Aranda (JSR-252)
- See Also:
- Serialized Form
Fields inherited from class javax.servlet.jsp.tagext.TagSupport |
id, pageContext |
Fields inherited from interface javax.servlet.jsp.tagext.IterationTag |
EVAL_BODY_AGAIN |
Fields inherited from interface javax.servlet.jsp.tagext.Tag |
EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE |
Method Summary |
int |
doStartTag()
|
void |
release()
|
void |
setName(javax.el.ValueExpression nameExpression)
The name of the attribute. |
void |
setValue(javax.el.ValueExpression valueExpression)
The attribute's value. |
Methods inherited from class javax.servlet.jsp.tagext.TagSupport |
doAfterBody, doEndTag, findAncestorWithClass, getId, getParent, getValue, getValues, removeValue, setId, setPageContext, setParent, setValue |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
AttributeTag
public AttributeTag()
setName
@JSFJspAttribute(className="javax.el.ValueExpression",
deferredValueType="java.lang.String")
public void setName(javax.el.ValueExpression nameExpression)
- The name of the attribute.
- Parameters:
nameExpression
-
setValue
@JSFJspAttribute(className="javax.el.ValueExpression",
deferredValueType="java.lang.Object")
public void setValue(javax.el.ValueExpression valueExpression)
- The attribute's value.
- Parameters:
valueExpression
-
doStartTag
public int doStartTag()
throws javax.servlet.jsp.JspException
- Specified by:
doStartTag
in interface javax.servlet.jsp.tagext.Tag
- Overrides:
doStartTag
in class javax.servlet.jsp.tagext.TagSupport
- Throws:
javax.servlet.jsp.JspException
release
public void release()
- Specified by:
release
in interface javax.servlet.jsp.tagext.Tag
- Overrides:
release
in class javax.servlet.jsp.tagext.TagSupport
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