IParameterizable (EASy-Producer Documentation API)

Type Parameters:

V - the actual type of resolvable / variable

All Known Subinterfaces:

IResolvableModel<V,M>, IResolvableOperation<V>

All Known Implementing Classes:

AbstractResolvableModel, AbstractRule, Def, DummyModel, Rule, Script, Template, VtlRule
```
public interface IParameterizable<V extends IMetaParameterDeclaration>
```
Defines the access to parameters.

Author:

Holger Eichelberger

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`V`	`getParameter(int index)`	Get the parameter of this rule at the specified index.
`V`	`getParameter(java.lang.String name)`	Returns a named parameter declaration.
`int`	`getParameterCount()`	Get the number of parameters of this rule.
`int`	`getRequiredParameterCount()`	Returns the number of required parameters, i.e., non-default and non-named parameters.

- Method Detail
  - getParameterCount
```
int getParameterCount()
```
    Get the number of parameters of this rule.
    
    Returns:
    
    The number of parameters of this rule.
  - getParameter
```
V getParameter(int index)
```
    Get the parameter of this rule at the specified index.
    
    Parameters:
    
    index - The 0-based index of the rule parameter to be returned.
    
    Returns:
    
    The rule parameter at the given index.
    
    Throws:
    
    java.lang.IndexOutOfBoundsException - if index < 0 || index >=getParameterCount()
  - getRequiredParameterCount
```
int getRequiredParameterCount()
```
    Returns the number of required parameters, i.e., non-default and non-named parameters.
    
    Returns:
    
    the number of required parameters
  - getParameter
```
V getParameter(java.lang.String name)
```
    Returns a named parameter declaration.
    
    Parameters:
    
    name - the name of the parameter
    
    Returns:
    
    the declaration or null if there is none