| Name | Description | Type | Package | Framework |
| Expression | Common superclass for several types of nodes in the parse tree. | Class | org.apache.commons.jxpath.ri.compiler | Apache Commons |
| Expression .PointerIterator | Class | org.apache.commons.jxpath.ri.compiler.Expression | Apache Commons | |
| Expression .ValueIterator | Class | org.apache.commons.jxpath.ri.compiler.Expression | Apache Commons | |
| ExpressionPath | An element of the parse tree that represents an expression path, which is a path that starts with an expression like a function call: getFoo(. | Class | org.apache.commons.jxpath.ri.compiler | Apache Commons |