6.3.7 Tag return value - Reference Documentation
Authors: Graeme Rocher, Peter Ledbrook, Marc Palmer, Jeff Brown, Luke Daley, Burt Beckwith
Version: 2.0.4
6.3.7 Tag return value
Since Grails 1.2, a tag library call returns an instance oforg.codehaus.groovy.grails.web.util.StreamCharBuffer class by default.
This change improves performance by reducing object creation and optimizing buffering during request processing.
In earlier Grails versions, a java.lang.String instance was returned.Tag libraries can also return direct object values to the caller since Grails 1.2..
Object returning tag names are listed in a static returnObjectForTags property in the tag library class.Example:
class ObjectReturningTagLib {
static namespace = "cms"
static returnObjectForTags = ['content'] def content = { attrs, body ->
CmsContent.findByCode(attrs.code)?.content
}
}
