IEvaluator (Agent API 1.2.3 API)

All Known Implementing Classes:

AbstractEvaluator, LazyEvaluator
```
public interface IEvaluator
```
This defines an evaluator, and evaluator is used to evaluate expression at runtime. ie allows a watch or condition to execute within the scope of the tracepoint.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`evaluate(String expression, Map<String,Object> values)`	Evaluate an expression as a boolean response.
`Object`	`evaluateExpression(String expression, Map<String,Object> values)`	Evaluate an expression to the value.

- Method Detail
  - evaluate
```
boolean evaluate(String expression,
                 Map<String,Object> values)
```
    Evaluate an expression as a boolean response.
    
    Parameters:
    
    expression - the expression to evaluate
    
    values - the variables that the expression can evaluate against
    
    Returns:
    
    true if the expression evaluates to truthy value.
    
    See Also:
    
    AbstractEvaluator.objectToBoolean(Object)
  - evaluateExpression
```
Object evaluateExpression(String expression,
                          Map<String,Object> values)
                   throws Throwable
```
    Evaluate an expression to the value.
    
    Parameters:
    
    expression - the expression to evaluate
    
    values - the variables that the expression can evaluate against
    
    Returns:
    
    the result of the expression
    
    Throws:
    
    Throwable - if the expression fails