IEvaluationContext (Eclipse Platform API Specification)

```
public interface IEvaluationContext
```
The evaluation context. Contexts can be nested and new contexts are pushed for each closure during an evaluation of an expression.

Since:

2.0

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`IIndexProvider<?>`	`getIndexProvider()`
`Object`	`getParameter(int position)`	Returns the value of the parameter at the given `position`
`Object`	`getValue(IExpression variable)`	Retrieve the value of the given `variable` from this context
`void`	`setIndexProvider(IIndexProvider<?> indexProvider)`
`void`	`setValue(IExpression variable, Object value)`	Set the current value for the given `variable` to `value`

- Method Detail
  - getIndexProvider
```
IIndexProvider<?> getIndexProvider()
```
  - setIndexProvider
```
void setIndexProvider(IIndexProvider<?> indexProvider)
```
  - getValue
```
Object getValue(IExpression variable)
```
    Retrieve the value of the given variable from this context
    
    Parameters:
    
    variable - The variable who's value should be retrieved
    
    Returns:
    
    The current value for the variable
  - setValue
```
void setValue(IExpression variable,
              Object value)
```
    Set the current value for the given variable to value
    
    Parameters:
    
    variable - The variable who's value should be set
    
    value - The new value for the variable.
  - getParameter
```
Object getParameter(int position)
```
    Returns the value of the parameter at the given position
    
    Parameters:
    
    position - The zero based position for the parameter
    
    Returns:
    
    The parameter value