ExpressionEvaluator

All Known Subinterfaces:

TypeAwareExpressionEvaluator

All Known Implementing Classes:

DefaultExpressionEvaluator
```
public interface ExpressionEvaluator
```
Evaluate an expression.

Field Summary

Fields
Modifier and Type Field Description

static java.lang.String ROLE

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.io.File`	`alignToBaseDirectory(java.io.File file)`	Align a given path to the base directory that can be evaluated by this expression evaluator, if known.
`java.lang.Object`	`evaluate(java.lang.String expression)`	Evaluate an expression.

- Field Detail
  - ROLE
```
static final java.lang.String ROLE
```
- Method Detail
  - evaluate
```
java.lang.Object evaluate(java.lang.String expression)
                   throws ExpressionEvaluationException
```
    Evaluate an expression.
    
    Parameters:
    
    expression - the expression
    
    Returns:
    
    the value of the expression
    
    Throws:
    
    ExpressionEvaluationException - in case of an error.
  - alignToBaseDirectory
```
java.io.File alignToBaseDirectory(java.io.File file)
```
    Align a given path to the base directory that can be evaluated by this expression evaluator, if known.
    
    Parameters:
    
    file - the file
    
    Returns:
    
    the aligned file