DiconConditionUtil．これは使える！ <components namespace="teeda"> <include path="convention.dicon" condition="@org.seasar.teeda.core.util.DiconConditionUtil@hasConvention()" /> <include path="teedaErrorPage.dicon" condition="@org.seasar.teeda.core.util.DiconConditionUtil@hasErrorPageDicon()" /> </include></include></components>

http://s2chronos.sandbox.seasar.org/ja/すみません．徐々にUpdate中です．