org.apache.commons.jexl
Interface  JexlExprResolver
- All Known Implementing Classes: 
- FlatResolver
- public interface JexlExprResolver
A Resolver allows custom resolution of the expression, and can be
  added in front of the jexl engine, or after in the evaluation.
- Since: 
- 1.0
- Version: 
- $Id: JexlExprResolver.java 397092 2006-04-26 05:11:28Z dion $
| Field Summary | 
| static Object | NO_VALUErepresents an expression result of no value.
 | 
 
 
NO_VALUE
public static final Object NO_VALUE
- represents an expression result of no value.
evaluate
public Object evaluate(JexlContext context,
                       String expression)
- Evaluates an expression against the context.- 
- Parameters:
- context- current data context
- expression- expression to evauluate
- Returns:
- value (may be null) or the NO_VALUE object to
       indicate no resolution.
 
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