QualifierKind (checker-framework 3.21.0 API)

All Superinterfaces:

Comparable<QualifierKind>

All Known Implementing Classes:

DefaultQualifierKindHierarchy.DefaultQualifierKind
```
@AnnotatedFor(value="nullness")
 @Interned
public interface QualifierKind
extends Comparable<QualifierKind>
```
Represents a kind of qualifier, which is an annotation class. If two qualifiers use the same annotation class, then they have the same qualifier kind. Two qualifiers can have the same "kind" of qualifier but not be the same qualifier; an example is @IndexFor("a") and @IndexFor("b").
A QualifierKind holds information about the relationship between itself and other QualifierKinds.
Exactly one qualifier kind is created for each annotation class.
The set of all QualifierKinds for a checker is like an enum. One QualifierKind is like an enum constant in that they are immutable after initialization and only a finite number exist per type system.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`default int`	`compareTo(QualifierKind o)`
`Class<? extends Annotation>`	`getAnnotationClass()` Returns the annotation class for this.
`QualifierKind`	`getBottom()` Returns the bottom qualifier kind of the hierarchy to which this qualifier kind belongs.
`@Interned @CanonicalName String`	`getName()` Returns the canonical name of the annotation class of this.
`@Nullable QualifierKind`	`getPolymorphic()` Returns the polymorphic qualifier kind of the hierarchy to which this qualifier kind belongs, or null if one does not exist.
`Set<? extends QualifierKind>`	`getStrictSuperTypes()` All the qualifier kinds that are a strict super qualifier of this qualifier.
`QualifierKind`	`getTop()` Returns the top qualifier kind of the hierarchy to which this qualifier kind belongs.
`boolean`	`hasElements()` Returns true if the annotation class this qualifier kind represents has annotation elements/arguments.
`boolean`	`isBottom()` Returns true if this is the bottom qualifier of its hierarchy.
`boolean`	`isInSameHierarchyAs(QualifierKind other)` Returns true if this and `other` are in the same hierarchy.
`boolean`	`isPoly()` Returns true if this is polymorphic.
`boolean`	`isSubtypeOf(QualifierKind superQualKind)` Returns true if this qualifier kind is a subtype of or equal to `superQualKind`.
`boolean`	`isTop()` Returns true if this is the top qualifier of its hierarchy.

- Method Detail
  - getName
```
@Interned @CanonicalName String getName()
```
    Returns the canonical name of the annotation class of this.
    
    Returns:
    
    the canonical name of the annotation class of this
  - getAnnotationClass
```
Class<? extends Annotation> getAnnotationClass()
```
    Returns the annotation class for this.
    
    Returns:
    
    the annotation class for this
  - getTop
```
QualifierKind getTop()
```
    Returns the top qualifier kind of the hierarchy to which this qualifier kind belongs.
    
    Returns:
    
    the top qualifier kind of the hierarchy to which this qualifier kind belongs
  - isTop
```
boolean isTop()
```
    Returns true if this is the top qualifier of its hierarchy.
    
    Returns:
    
    true if this is the top qualifier of its hierarchy
  - getBottom
```
QualifierKind getBottom()
```
    Returns the bottom qualifier kind of the hierarchy to which this qualifier kind belongs.
    
    Returns:
    
    the bottom qualifier kind of the hierarchy to which this qualifier kind belongs
  - isBottom
```
boolean isBottom()
```
    Returns true if this is the bottom qualifier of its hierarchy.
    
    Returns:
    
    true if this is the bottom qualifier of its hierarchy
  - getPolymorphic
```
@Nullable QualifierKind getPolymorphic()
```
    Returns the polymorphic qualifier kind of the hierarchy to which this qualifier kind belongs, or null if one does not exist.
    
    Returns:
    
    the polymorphic qualifier kind of the hierarchy to which this qualifier kind belongs, or null if one does not exist
  - isPoly
```
@Pure
boolean isPoly()
```
    Returns true if this is polymorphic.
    
    Returns:
    
    true if this is polymorphic
  - hasElements
```
boolean hasElements()
```
    Returns true if the annotation class this qualifier kind represents has annotation elements/arguments.
    
    Returns:
    
    true if the annotation class this qualifier kind represents has elements/arguments
  - getStrictSuperTypes
```
Set<? extends QualifierKind> getStrictSuperTypes()
```
    All the qualifier kinds that are a strict super qualifier of this qualifier. Does not include this qualifier kind itself.
    
    Returns:
    
    all the qualifier kinds that are a strict super qualifier of this qualifier
  - isInSameHierarchyAs
```
boolean isInSameHierarchyAs(QualifierKind other)
```
    Returns true if this and other are in the same hierarchy.
    
    Parameters:
    
    other - a qualifier kind
    
    Returns:
    
    true if this and other are in the same hierarchy
  - isSubtypeOf
```
boolean isSubtypeOf(QualifierKind superQualKind)
```
    Returns true if this qualifier kind is a subtype of or equal to superQualKind.
    
    Parameters:
    
    superQualKind - other qualifier kind
    
    Returns:
    
    true if this qualifier kind is a subtype of or equal to superQualKind
  - compareTo
```
default int compareTo(QualifierKind o)
```
    Specified by:
    
    compareTo in interface Comparable<QualifierKind>

Interface QualifierKind

Method Summary

Method Detail

getName

getAnnotationClass

getTop

isTop

getBottom

isBottom

getPolymorphic

isPoly

hasElements

getStrictSuperTypes

isInSameHierarchyAs

isSubtypeOf

compareTo