# D.7 Path / Classpath The Path data type can be used to represent path structures. In many cases the path type will be used for nested <classpaentry> tags. E.g. ``` <path id="project.class.path"> <pathelement dir="lib/"/> <pathelement dir="ext/"/> </path> <target name="blah"> <taskdef name="mytask" path="myapp.phing.tasks.MyTask"> <classpath refid="project.class.path"/> </taskdef> </target> ``` Table D.6:聽 Attributes for `<paentry>` tag NameTypeDescriptionDefaultRequired`dir``String`Specific path to directoryn/aNo`path``String`A path (which contains multiple locations separated by path.separator) to add.n/aNo D.7.1 Nested tags The `<paentry> `tag supports nested `<fileset>` and `<dirset>` tags.