| CompositePName | A CompositePName is an Operator representing the construction of a PName
from a NamingContext and several Fields. |
| EncodePName | This implementation of the CalculatedParameterOperand interface encode a
a PName. |
| IsNullPName | This implementation of the CalculatedParameterOperand interface checks if
a PName is null. |
| NavigatorOperator | A NavigatorOperator typically represents a path expression. |
| SinglePName | A SinglePName is an Operator representing the construction of a PName
from a NamingContext and a single Field. |