Variant

java.lang.Object
- jakarta.ws.rs.core.Variant

```
public class Variant
extends java.lang.Object
```
Abstraction for a resource representation variant. Contains information about media type, language and encoding of the resource representation.

Since:

1.0

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class Variant.VariantListBuilder
A builder for a list of representation variants.

Nested Classes
Modifier and Type	Class and Description
`static class`	`Variant.VariantListBuilder` A builder for a list of representation variants.

Constructor Summary

Constructors
Constructor and Description
`Variant(MediaType mediaType, java.util.Locale language, java.lang.String encoding)` Create a new instance of Variant.
`Variant(MediaType mediaType, java.lang.String language, java.lang.String encoding)` Create a new instance of Variant.
`Variant(MediaType mediaType, java.lang.String language, java.lang.String country, java.lang.String encoding)` Create a new instance of Variant.
`Variant(MediaType mediaType, java.lang.String language, java.lang.String country, java.lang.String languageVariant, java.lang.String encoding)` Create a new instance of Variant.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static Variant.VariantListBuilder`	`encodings(java.lang.String... encodings)` Create a `Variant.VariantListBuilder` initialized with a set of supported encodings.
`boolean`	`equals(java.lang.Object obj)` Compares obj to this variant to see if they are the same considering all property values.
`java.lang.String`	`getEncoding()` Get the encoding of the variant.
`java.util.Locale`	`getLanguage()` Get the language of the variant.
`java.lang.String`	`getLanguageString()` Get the string representation of the variant language, or `null` if no language has been set.
`MediaType`	`getMediaType()` Get the media type of the variant.
`int`	`hashCode()` Generate hash code from variant properties.
`static Variant.VariantListBuilder`	`languages(java.util.Locale... languages)` Create a `Variant.VariantListBuilder` initialized with a set of supported languages.
`static Variant.VariantListBuilder`	`mediaTypes(MediaType... mediaTypes)` Create a `Variant.VariantListBuilder` initialized with a set of supported media types.
`java.lang.String`	`toString()`

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

- Constructor Detail
  - Variant
```
public Variant(MediaType mediaType,
               java.lang.String language,
               java.lang.String encoding)
```
    Create a new instance of Variant.
    
    Parameters:
    
    mediaType - the media type of the variant - may be null.
    
    language - the language of the variant (two-letter ISO-639 code); may be null.
    
    encoding - the content encoding of the variant - may be null.
    
    Throws:
    
    java.lang.IllegalArgumentException - if all the parameters are null.
    
    Since:
    
    2.0
  - Variant
```
public Variant(MediaType mediaType,
               java.lang.String language,
               java.lang.String country,
               java.lang.String encoding)
```
    Create a new instance of Variant.
    
    Parameters:
    
    mediaType - the media type of the variant - may be null.
    
    language - the language of the variant (two-letter ISO-639 code); may be null.
    
    country - uppercase two-letter ISO-3166 language code of the variant; may be null provided language is null too.
    
    encoding - the content encoding of the variant - may be null.
    
    Throws:
    
    java.lang.IllegalArgumentException - if all the parameters are null.
    
    Since:
    
    2.0
  - Variant
```
public Variant(MediaType mediaType,
               java.lang.String language,
               java.lang.String country,
               java.lang.String languageVariant,
               java.lang.String encoding)
```
    Create a new instance of Variant.
    
    Parameters:
    
    mediaType - the media type of the variant - may be null.
    
    language - the language of the variant (two-letter ISO-639 code); may be null.
    
    country - uppercase two-letter ISO-3166 language code of the variant; may be null provided language is null too.
    
    languageVariant - vendor and browser specific language code of the variant (see also Locale class description); may be null provided language and country are null too.
    
    encoding - the content encoding of the variant - may be null.
    
    Throws:
    
    java.lang.IllegalArgumentException - if all the parameters are null.
    
    Since:
    
    2.0
  - Variant
```
public Variant(MediaType mediaType,
               java.util.Locale language,
               java.lang.String encoding)
```
    Create a new instance of Variant.
    
    Parameters:
    
    mediaType - the media type of the variant - may be null.
    
    language - the language of the variant - may be null.
    
    encoding - the content encoding of the variant - may be null.
    
    Throws:
    
    java.lang.IllegalArgumentException - if all the parameters are null.
- Method Detail
  - getLanguage
```
public java.util.Locale getLanguage()
```
    Get the language of the variant.
    
    Returns:
    
    the language or null if none set.
  - getLanguageString
```
public java.lang.String getLanguageString()
```
    Get the string representation of the variant language, or null if no language has been set.
    
    Returns:
    
    the string representing variant language or null if none set.
    
    Since:
    
    2.0
  - getMediaType
```
public MediaType getMediaType()
```
    Get the media type of the variant.
    
    Returns:
    
    the media type or null if none set.
  - getEncoding
```
public java.lang.String getEncoding()
```
    Get the encoding of the variant.
    
    Returns:
    
    the encoding or null if none set.
  - mediaTypes
```
public static Variant.VariantListBuilder mediaTypes(MediaType... mediaTypes)
```
    Create a Variant.VariantListBuilder initialized with a set of supported media types.
    
    Parameters:
    
    mediaTypes - the available mediaTypes. If specific char-sets are supported they should be included as parameters of the respective media type.
    
    Returns:
    
    the initialized builder.
    
    Throws:
    
    java.lang.IllegalArgumentException - if mediaTypes is null or contains no elements.
  - languages
```
public static Variant.VariantListBuilder languages(java.util.Locale... languages)
```
    Create a Variant.VariantListBuilder initialized with a set of supported languages.
    
    Parameters:
    
    languages - the available languages.
    
    Returns:
    
    the initialized builder.
    
    Throws:
    
    java.lang.IllegalArgumentException - if languages is null or contains no elements.
  - encodings
```
public static Variant.VariantListBuilder encodings(java.lang.String... encodings)
```
    Create a Variant.VariantListBuilder initialized with a set of supported encodings.
    
    Parameters:
    
    encodings - the available encodings.
    
    Returns:
    
    the initialized builder.
    
    Throws:
    
    java.lang.IllegalArgumentException - if encodings is null or contains no elements.
  - hashCode
```
public int hashCode()
```
    Generate hash code from variant properties.
    
    Overrides:
    
    hashCode in class java.lang.Object
    
    Returns:
    
    the hash code.
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Compares obj to this variant to see if they are the same considering all property values.
    
    Overrides:
    
    equals in class java.lang.Object
    
    Parameters:
    
    obj - the object to compare to.
    
    Returns:
    
    true if the two variants are the same, false otherwise.
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object

Class Variant

Nested Class Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Variant

Variant

Variant

Variant

Method Detail

getLanguage

getLanguageString

getMediaType

getEncoding

mediaTypes

languages

encodings

hashCode

equals

toString