Package org.apache.commons.jelly
Interface DynaTag
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- All Superinterfaces:
Tag
- All Known Implementing Classes:
DynaBeanTagSupport
,DynamicBeanTag
,DynamicDynaBeanTag
,DynamicTag
,DynaTagSupport
,MapTagSupport
,SetPropertiesTag
,StaticTag
,UseBeanTag
,UseListTag
public interface DynaTag extends Tag
DynaTag
represents a Jelly custom tag which can take its attributes dynamically and store them in some data structure. Typically a DynaTag may use either a Map or a DynaBean to implement itself which avoids writing explicit getter and setter methods for each possible attribute.This kind of tag can be extremely useful when making HTML-like tags which generally output all the attributes which are used in the markup, except one or two special attributes are used, all others pass through.
- Version:
- $Revision: 155420 $
- Author:
- James Strachan
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description Class
getAttributeType(String name)
void
setAttribute(String name, Object value)
Sets an attribute value of this tag before the tag is invoked-
Methods inherited from interface org.apache.commons.jelly.Tag
doTag, getBody, getContext, getParent, invokeBody, setBody, setContext, setParent
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Method Detail
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setAttribute
void setAttribute(String name, Object value) throws JellyTagException
Sets an attribute value of this tag before the tag is invoked- Throws:
JellyTagException
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getAttributeType
Class getAttributeType(String name) throws JellyTagException
- Returns:
- the type of the given attribute. By default just return Object.class if this is not known. If this method returns Expression.class then the expression will not be evaluated and just passed in as the attribute value.
- Throws:
JellyTagException
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