AnnotationUtil (micronaut 3.8.1 API)

java.lang.Object
- io.micronaut.core.annotation.AnnotationUtil

```
@Internal
public class AnnotationUtil
extends Object
```
Internal utility methods for annotations. For Internal and framework use only. Do not use in application code.

Since:

1.0

Author:

Graeme Rocher

Field Summary

Fields
Modifier and Type	Field and Description
`static Set<String>`	`ADVICE_STEREOTYPES` The advice stereotypes.
`static String`	`ANN_AROUND` The around annotation type.
`static String`	`ANN_AROUND_CONSTRUCT` The around annotation type.
`static String`	`ANN_INTERCEPTOR_BINDING` Name of the interceptor binding type.
`static String`	`ANN_INTERCEPTOR_BINDING_QUALIFIER` Name of the interceptor binding qualifier type.
`static String`	`ANN_INTERCEPTOR_BINDINGS` Name of the repeatable interceptor bindings type.
`static String`	`ANN_INTRODUCTION` The around annotation type.
`static AnnotatedElement`	`EMPTY_ANNOTATED_ELEMENT` An empty re-usable element.
`static String`	`INJECT` The meta annotation used for inject declarations.
`static List<String>`	`INTERNAL_ANNOTATION_NAMES`
`static String`	`KOTLIN_METADATA` Constant for Kotlin metadata.
`static String`	`NAMED` The meta annotation used for named qualifiers.
`static String`	`NON_NULL` Simple Annotation name used for non-null.
`static String`	`NULLABLE` Simple Annotation name used for nullable.
`static String`	`POST_CONSTRUCT` The meta annotation used for post-construct declarations.
`static String`	`PRE_DESTROY` The meta annotation used for pre-destroy declarations.
`static String`	`QUALIFIER` The meta annotation used for qualifier declarations.
`static String`	`SCOPE` The meta annotation used for scope declarations.
`static String`	`SINGLETON` The meta annotation used for singleton scope.
`static List<String>`	`STEREOTYPE_EXCLUDES` Packages excludes from stereotype processing.
`static AnnotatedElement[]`	`ZERO_ANNOTATED_ELEMENTS` Constant indicating an zero annotation.
`static AnnotationValue<?>[]`	`ZERO_ANNOTATION_VALUES` Constant indicating an zero annotation values.
`static Annotation[]`	`ZERO_ANNOTATIONS` Constant indicating an zero annotation.

Constructor Summary

Constructors
Constructor and Description

AnnotationUtil()

Constructors
Constructor and Description
`AnnotationUtil()`

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static boolean`	`areEqual(Object o1, Object o2)` Computes whether 2 annotation values are equal.
`static int`	`calculateHashCode(Map<? extends CharSequence,Object> values)` Calculates the hash code of annotation values.
`static List<String>`	`internListOf(Object... objects)` Converts the given objects into a set of potentially cached and interned strings contained within an internal pool of lists.
`static Map<String,Object>`	`internMapOf(Object... values)` Converts the given objects into a map of potentially cached and interned strings where the keys and values are alternating entries in the passed array.
`static Map<String,Object>`	`internMapOf(String key, Object value)` Converts the given objects into a map of potentially cached and interned strings where the keys and values are alternating entries in the passed array.
`static Map<String,Object>`	`mapOf(Object... array)` Create a new immutable `Map` from an array of values.
`static Map<String,Object>`	`mapOf(String key1, Object value1)` Create a new immutable `Map`.
`static Map<String,Object>`	`mapOf(String key1, Object value1, String key2, Object value2)` Create a new immutable `Map`.
`static Map<String,Object>`	`mapOf(String key1, Object value1, String key2, Object value2, String key3, Object value3)` Create a new immutable `Map`.
`static Map<String,Object>`	`mapOf(String key1, Object value1, String key2, Object value2, String key3, Object value3, String key4, Object value4)` Create a new immutable `Map`.
`static Map<String,Object>`	`mapOf(String key1, Object value1, String key2, Object value2, String key3, Object value3, String key4, Object value4, String key5, Object value5)` Create a new immutable `Map`.
`static Map<String,Object>`	`mapOf(String key1, Object value1, String key2, Object value2, String key3, Object value3, String key4, Object value4, String key5, Object value5, String key6, Object value6)` Create a new immutable `Map`.
`static Map<String,Object>`	`mapOf(String key1, Object value1, String key2, Object value2, String key3, Object value3, String key4, Object value4, String key5, Object value5, String key6, Object value6, String key7, Object value7)` Create a new immutable `Map`.
`static Map<String,Object>`	`mapOf(String key1, Object value1, String key2, Object value2, String key3, Object value3, String key4, Object value4, String key5, Object value5, String key6, Object value6, String key7, Object value7, String key8, Object value8)` Create a new immutable `Map`.
`static Map<String,Object>`	`mapOf(String key1, Object value1, String key2, Object value2, String key3, Object value3, String key4, Object value4, String key5, Object value5, String key6, Object value6, String key7, Object value7, String key8, Object value8, String key9, Object value9)` Create a new immutable `Map`.
`static Map<String,Object>`	`mapOf(String key1, Object value1, String key2, Object value2, String key3, Object value3, String key4, Object value4, String key5, Object value5, String key6, Object value6, String key7, Object value7, String key8, Object value8, String key9, Object value9, String key10, Object value10)` Create a new immutable `Map`.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail
- KOTLIN_METADATA
```
public static final String KOTLIN_METADATA
```
  Constant for Kotlin metadata.
  
  See Also:
  
  Constant Field Values
- INTERNAL_ANNOTATION_NAMES
```
public static final List<String> INTERNAL_ANNOTATION_NAMES
```
- STEREOTYPE_EXCLUDES
```
public static final List<String> STEREOTYPE_EXCLUDES
```
  Packages excludes from stereotype processing.
- ZERO_ANNOTATIONS
```
public static final Annotation[] ZERO_ANNOTATIONS
```
  Constant indicating an zero annotation.
- ZERO_ANNOTATED_ELEMENTS
```
public static final AnnotatedElement[] ZERO_ANNOTATED_ELEMENTS
```
  Constant indicating an zero annotation.
- ZERO_ANNOTATION_VALUES
```
public static final AnnotationValue<?>[] ZERO_ANNOTATION_VALUES
```
  Constant indicating an zero annotation values.
- EMPTY_ANNOTATED_ELEMENT
```
public static final AnnotatedElement EMPTY_ANNOTATED_ELEMENT
```
  An empty re-usable element.
- NULLABLE
```
public static final String NULLABLE
```
  Simple Annotation name used for nullable.
  
  See Also:
  
  Constant Field Values
- NON_NULL
```
public static final String NON_NULL
```
  Simple Annotation name used for non-null.
  
  See Also:
  
  Constant Field Values
- ANN_AROUND
```
public static final String ANN_AROUND
```
  The around annotation type.
  
  See Also:
  
  Constant Field Values
- ANN_AROUND_CONSTRUCT
```
public static final String ANN_AROUND_CONSTRUCT
```
  The around annotation type.
  
  See Also:
  
  Constant Field Values
- ANN_INTRODUCTION
```
public static final String ANN_INTRODUCTION
```
  The around annotation type.
  
  See Also:
  
  Constant Field Values
- ANN_INTERCEPTOR_BINDING
```
public static final String ANN_INTERCEPTOR_BINDING
```
  Name of the interceptor binding type.
  
  See Also:
  
  Constant Field Values
- ANN_INTERCEPTOR_BINDING_QUALIFIER
```
public static final String ANN_INTERCEPTOR_BINDING_QUALIFIER
```
  Name of the interceptor binding qualifier type.
  
  See Also:
  
  Constant Field Values
- ADVICE_STEREOTYPES
```
public static final Set<String> ADVICE_STEREOTYPES
```
  The advice stereotypes.
- ANN_INTERCEPTOR_BINDINGS
```
public static final String ANN_INTERCEPTOR_BINDINGS
```
  Name of the repeatable interceptor bindings type.
  
  See Also:
  
  Constant Field Values
- INJECT
```
public static final String INJECT
```
  The meta annotation used for inject declarations.
  
  See Also:
  
  Constant Field Values
- SCOPE
```
public static final String SCOPE
```
  The meta annotation used for scope declarations.
  
  See Also:
  
  Constant Field Values
- SINGLETON
```
public static final String SINGLETON
```
  The meta annotation used for singleton scope.
  
  See Also:
  
  Constant Field Values
- QUALIFIER
```
public static final String QUALIFIER
```
  The meta annotation used for qualifier declarations.
  
  See Also:
  
  Constant Field Values
- NAMED
```
public static final String NAMED
```
  The meta annotation used for named qualifiers.
  
  See Also:
  
  Constant Field Values
- PRE_DESTROY
```
public static final String PRE_DESTROY
```
  The meta annotation used for pre-destroy declarations.
  
  See Also:
  
  Constant Field Values
- POST_CONSTRUCT
```
public static final String POST_CONSTRUCT
```
  The meta annotation used for post-construct declarations.
  
  See Also:
  
  Constant Field Values

Constructor Detail
- AnnotationUtil
```
public AnnotationUtil()
```

Method Detail

internListOf
```
public static List<String> internListOf(Object... objects)
```
Converts the given objects into a set of potentially cached and interned strings contained within an internal pool of lists. See String.intern().
This method serves the purpose of reducing memory footprint by pooling common lists of annotations in compiled AnnotationMetadata

Parameters:

objects - The objects

Returns:

A unmodifiable, pooled set of strings

internMapOf
```
public static Map<String,Object> internMapOf(Object... values)
```
Converts the given objects into a map of potentially cached and interned strings where the keys and values are alternating entries in the passed array. See String.intern().
The values stored at even number positions will be converted to strings and interned.

Parameters:

values - The objects

Returns:

An unmodifiable set of strings

See Also:

CollectionUtils.mapOf(Object...)

internMapOf
```
public static Map<String,Object> internMapOf(String key,
                                             Object value)
```
Converts the given objects into a map of potentially cached and interned strings where the keys and values are alternating entries in the passed array. See String.intern().
The values stored at even number positions will be converted to strings and interned.

Parameters:

key - The key

value - The value

Returns:

An unmodifiable set of strings

Since:

3.0

mapOf
```
public static Map<String,Object> mapOf(Object... array)
```
Create a new immutable Map from an array of values. String values must be sorted!

Parameters:

array - The key, value array

Returns:

The created map