ExpressionEvaluator (Plexus :: Default Container (deprecated) 2.2.0-SNAPSHOT API)

All Known Subinterfaces:

TypeAwareExpressionEvaluator

All Known Implementing Classes:

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

Author:

Brett Porter

Field Summary

Fields
Modifier and Type Field Description

static String ROLE

Method Summary

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

- Field Detail
  - ROLE
```
static final String ROLE
```
- Method Detail
  - evaluate
```
Object evaluate(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
```
File alignToBaseDirectory(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