Package org.incenp.obofoundry.sssom.transform

Class SSSOMTSetvarCallbackFunction

java.lang.Object

org.incenp.obofoundry.sssom.transform.SSSOMTSetvarCallbackFunction

All Implemented Interfaces:

ISSSOMTFunction<IMappingProcessorCallback>

public class SSSOMTSetvarCallbackFunction
extends Object
implements ISSSOMTFunction<IMappingProcessorCallback>

Represents the SSSOM/T standard callback function "set_var".

This function is similar to the directive function "set_var", but it is called when "set_var" is found after a filter, as in:

 predicate==skos:exactMatch -> set_var("MYVAR", "value for exact mappings");
 

It sets the value that the indicated variable should take for mappings that match the filter.

Constructor Summary

Constructors

Constructor	Description
SSSOMTSetvarCallbackFunction(SSSOMTransformApplication<T> application)	Creates a new instance.

Method Summary

Modifier and Type	Method	Description
IMappingProcessorCallback	call(List<String> arguments, Map<String,String> keyedArguments)	Executes the function.
String	getName()	Gets the name of the function, by which it can be called in a SSSOM/T ruleset.
String	getSignature()	Gets the expected signature of the function.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SSSOMTSetvarCallbackFunction

public SSSOMTSetvarCallbackFunction(SSSOMTransformApplication<T> application)

Creates a new instance.

Type Parameters:

T - The type of objects produced by the application.

Parameters:

application - The application this function is a part of.

Method Detail

getName

public String getName()

Description copied from interface: ISSSOMTFunction

Gets the name of the function, by which it can be called in a SSSOM/T ruleset.

Specified by:

getName in interface ISSSOMTFunction<IMappingProcessorCallback>

Returns:

The function name.

getSignature

public String getSignature()

Description copied from interface: ISSSOMTFunction

Gets the expected signature of the function. It should be a string that represents how many arguments (excluding keyed arguments) the function is expecting, where a single S character represents an argument.

Regular expression syntax may be used to represent arguments that are optional or represent other kinds of constraints about the arguments list.

Examples:

• SSS for a function that expects exactly 3 arguments;
• S+ for a function that expects at least one argument, possibly more;
• (SS)+ for a function that one or more pairs of arguments (e.g. 2, 4, 6, but not 3 or 5).

Specified by:

getSignature in interface ISSSOMTFunction<IMappingProcessorCallback>

Returns:

The function signature.

call

public IMappingProcessorCallback call(List<String> arguments,
                                      Map<String,String> keyedArguments)
                               throws SSSOMTransformError

Description copied from interface: ISSSOMTFunction

Executes the function.

Before this method is called, the arguments list will have been checked against the signature and will be guaranteed to be correct (e.g. if the function declared to expects two arguments, it is guaranteed the arguments list will contains two items).

Specified by:

call in interface ISSSOMTFunction<IMappingProcessorCallback>

Parameters:

arguments - The arguments to the function. May be empty, but not null.

keyedArguments - The keyed arguments to the function. May be empty, but null.

Returns:

The result of executing the function.

Throws:

SSSOMTransformError - If any error occurred when executing the function (which may include the case where the number of arguments was correct but their contents was not).