Expression (SNAP Engine API)

All Known Implementing Classes:

AbstractExpression, ChoiceExpr, CompoundExpr, ConstantExpr, IntReferenceExpr, ReferenceExpr, SelectionExpr, SequenceExpr
```
public interface Expression
```

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Object`	`evaluate(CompoundData context)`
`Expression`	`getParent()`
`boolean`	`isConstant()`
`void`	`setParent(Expression parent)`

Method Detail

isConstant
```
boolean isConstant()
```

evaluate

Object evaluate(CompoundData context)
         throws IOException

Throws:: IOException

getParent
```
Expression getParent()
```

setParent
```
void setParent(Expression parent)
```