IndexValidator (SNAP Engine API)

```
public interface IndexValidator
```
An interface used as parameter to several methods which perform some actions on data arrays. It is used to decide whether or not an array value shall be taken into account for a particular computation.

Field Summary

Fields
Modifier and Type Field Description

static IndexValidator TRUE
The validator whose validateIndex(int) method always returns true.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`validateIndex(int index)`	If the given `index` or the value at the given `index` is valid, this method should return `true`, otherwise `false`.

- Field Detail
  - TRUE
```
static final IndexValidator TRUE
```
    The validator whose validateIndex(int) method always returns true.
- Method Detail
  - validateIndex
```
boolean validateIndex(int index)
```
    If the given index or the value at the given index is valid, this method should return true, otherwise false.
    
    Parameters:
    
    index - the index to validate
    
    Returns:
    
    true, if the index or the data behind the index is valid.