ca.uhn.hl7v2.validation.builder

Interface Expression<T extends Structure>

Type Parameters:

T -

public interface Expression<T extends Structure>

Expression used to obtain values from a message structure

Method Summary

Modifier and Type	Method and Description
Object	evaluate(T structure) Applies this expression on the structure
String	getDescription() Returns the expression description used for describing the Rule this expression is used in.
Location	getLocation(T structure) Returns the location of the structure to which is expression is applied to

Method Detail

evaluate

Object evaluate(T structure)
         throws HL7Exception

Applies this expression on the structure

Parameters:

structure - HL7 structure to be evaluated

Returns:

the result value

Throws:

HL7Exception

getDescription

String getDescription()

Returns the expression description used for describing the Rule this expression is used in.

Returns:

description

getLocation

Location getLocation(T structure)
              throws HL7Exception

Returns the location of the structure to which is expression is applied to

Parameters:

structure - HL7 structure to be located

Returns:

the location of the structure

Throws:

HL7Exception - if the structure refers to an invalid location