EvaluationContext

All Known Implementing Classes:

EvaluationContext.PlainEvaluationContext, Macro.MacroEvaluationContext
```
interface EvaluationContext
```
The context of a template evaluation. This consists of the template variables and the template macros. The template variables start with the values supplied by the evaluation call, and can be changed by #set directives and during the execution of #foreach and macro calls. The macros are extracted from the template during parsing and never change thereafter.

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static class EvaluationContext.PlainEvaluationContext

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.lang.Object`	`getVar(java.lang.String var)`
`java.lang.Runnable`	`setVar(java.lang.String var, java.lang.Object value)`	Sets the given variable to the given value.
`boolean`	`varIsDefined(java.lang.String var)`

- Method Detail
  - getVar
```
java.lang.Object getVar(java.lang.String var)
```
  - varIsDefined
```
boolean varIsDefined(java.lang.String var)
```
  - setVar
```
java.lang.Runnable setVar(java.lang.String var,
                          java.lang.Object value)
```
    Sets the given variable to the given value.
    
    Returns:
    
    a Runnable that will restore the variable to the value it had before. If the variable was undefined before this method was executed, the Runnable will make it undefined again. This allows us to restore the state of $x after #foreach ($x in ...).