FunctionEvaluator

java.lang.Object

io.github.erdos.stencil.functions.FunctionEvaluator

public final class FunctionEvaluator extends Object

Constructor Summary

Constructors

Constructor

Description

FunctionEvaluator()
Method Summary

Modifier and Type

Method

Description

Object

call(String functionName, Object... arguments)

Calls a function by name.

Iterable<Function>

listFunctions()

Returns a thread-safe sequence of all registered functions.

void

registerFunctions(Function... functions)

Registers a function to this evaluator engine.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- FunctionEvaluator
  
  public FunctionEvaluator()
Method Details
- registerFunctions
  
  public void registerFunctions(Function... functions)
  
  Registers a function to this evaluator engine. Registered functions can be invoked from inside template files.
  
  Parameters:
  
  functions - list of functions to register
- call
  
  public Object call(String functionName, Object... arguments)
  
  Calls a function by name.
  
  Parameters:
  
  functionName - Case Insensitive name of fn to call.
  
  arguments - arguments dispatched to called function
  
  Returns:
  
  result of function call
  
  Throws:
  
  IllegalArgumentException - when function name is null or missing
- listFunctions
  
  public Iterable<Function> listFunctions()
  
  Returns a thread-safe sequence of all registered functions.