IsNullOperator (dialob-compiler 3.0.2 API)

All Superinterfaces:

Expression, Serializable

All Known Implementing Classes:

ImmutableIsNullOperator
```
@Immutable
public interface IsNullOperator
extends Expression
```

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default Boolean`	`eval(EvalContext evalContext)`
`default Set<EventMatcher>`	`getEvalRequiredConditions()`
`ItemId`	`getItemId()`
`default ValueType`	`getValueType()`

Method Detail

getItemId
```
ItemId getItemId()
```

eval

default Boolean eval(@Nonnull
                     EvalContext evalContext)

Specified by:: eval in interface Expression

getValueType
```
@Nonnull
default ValueType getValueType()
```
Specified by:

getValueType in interface Expression

getEvalRequiredConditions
```
@Nonnull
default Set<EventMatcher> getEvalRequiredConditions()
```
Specified by:

getEvalRequiredConditions in interface Expression