ExpressionNodeWithParameter (JMRI API)

All Superinterfaces:

ExpressionNode

All Known Implementing Classes:

ExpressionNodeArray, ExpressionNodeInstanceVariable, ExpressionNodeMap, ExpressionNodeMethod
```
public interface ExpressionNodeWithParameter
extends ExpressionNode
```
An expression that takes a parameter. This interface are used for ExpressionNodeFunction

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default void`	`assignValue(java.lang.Object parameter, SymbolTable symbolTable, java.lang.Object value)`	Assign a value to this expression from a parameter.
`java.lang.Object`	`calculate(java.lang.Object parameter, SymbolTable symbolTable)`	Calculate the expression from a parameter.
`default java.lang.Object`	`calculate(SymbolTable symbolTable)`	Calculate the expression

Methods inherited from interface jmri.jmrit.logixng.util.parser.ExpressionNode
assignValue, canBeAssigned, getDefinitionString

- Method Detail
  - calculate
```
default java.lang.Object calculate(SymbolTable symbolTable)
                            throws JmriException
```
    Calculate the expression
    
    Specified by:
    
    calculate in interface ExpressionNode
    
    Parameters:
    
    symbolTable - the symbol table
    
    Returns:
    
    the result
    
    Throws:
    
    JmriException - if an error occurs
  - calculate
```
java.lang.Object calculate(java.lang.Object parameter,
                           SymbolTable symbolTable)
                    throws JmriException
```
    Calculate the expression from a parameter.
    
    Parameters:
    
    parameter - the parameter
    
    symbolTable - the symbol table
    
    Returns:
    
    the result
    
    Throws:
    
    JmriException - if an error occurs
  - assignValue
```
default void assignValue(java.lang.Object parameter,
                         SymbolTable symbolTable,
                         java.lang.Object value)
                  throws JmriException
```
    Assign a value to this expression from a parameter.
    
    Parameters:
    
    parameter - the parameter
    
    symbolTable - the symbol table
    
    value - the value to assign
    
    Throws:
    
    JmriException - if an error occurs