Expression (dotify.library 1.0.5 API)

```
public interface Expression
```
Provides an interface for OBFL-expressions.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Object`	`evaluate(String expr)`	Evaluate is the method to use when evaluating an expression.
`void`	`removeAllVariables()`	Removes all global variables.
`void`	`removeVariable(String key)`	Removes a previously set variable.
`void`	`setVariable(String key, Object value)`	Sets a globally accessible variable for this instance.

- Method Detail
  - setVariable
```
void setVariable(String key,
                 Object value)
```
    Sets a globally accessible variable for this instance.
    
    Parameters:
    
    key - the variable name
    
    value - the value
  - removeVariable
```
void removeVariable(String key)
```
    Removes a previously set variable.
    
    Parameters:
    
    key - the variable name
  - removeAllVariables
```
void removeAllVariables()
```
    Removes all global variables.
  - evaluate
```
Object evaluate(String expr)
```
    Evaluate is the method to use when evaluating an expression.
    
    Parameters:
    
    expr - the expression to evaluate
    
    Returns:
    
    returns the evaluation result