com.fasterxml.jackson.databind.util

Class EnumResolver

java.lang.Object

com.fasterxml.jackson.databind.util.EnumResolver

All Implemented Interfaces:

Serializable

public class EnumResolver
extends Object
implements Serializable

Helper class used to resolve String values (either JSON Object field names or regular String values) into Java Enum instances.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected Enum<?>	_defaultValue
protected Class<Enum<?>>	_enumClass
protected Enum<?>[]	_enums
protected HashMap<String,Enum<?>>	_enumsById

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	EnumResolver(Class<Enum<?>> enumClass, Enum<?>[] enums, HashMap<String,Enum<?>> map, Enum<?> defaultValue)

Method Summary

Modifier and Type	Method and Description
static EnumResolver	constructFor(Class<Enum<?>> enumCls, AnnotationIntrospector ai) Factory method for constructing resolver that maps from Enum.name() into Enum value
CompactStringObjectMap	constructLookup()
static EnumResolver	constructUnsafe(Class<?> rawEnumCls, AnnotationIntrospector ai) This method is needed because of the dynamic nature of constructing Enum resolvers.
static EnumResolver	constructUnsafeUsingMethod(Class<?> rawEnumCls, AnnotatedMember accessor, AnnotationIntrospector ai) Method used when actual String serialization is indicated using @JsonValue on a method.
static EnumResolver	constructUnsafeUsingToString(Class<?> rawEnumCls, AnnotationIntrospector ai) Method that needs to be used instead of constructUsingToString(java.lang.Class<java.lang.Enum<?>>) if static type of enum is not known.
static EnumResolver	constructUsingMethod(Class<Enum<?>> enumCls, AnnotatedMember accessor, AnnotationIntrospector ai)
static EnumResolver	constructUsingToString(Class<Enum<?>> enumCls) Deprecated. Since 2.8, use constructUsingToString(Class, AnnotationIntrospector) instead
static EnumResolver	constructUsingToString(Class<Enum<?>> enumCls, AnnotationIntrospector ai) Factory method for constructing resolver that maps from Enum.toString() into Enum value
Enum<?>	findEnum(String key)
Enum<?>	getDefaultValue()
Enum<?>	getEnum(int index)
Class<Enum<?>>	getEnumClass()
Collection<String>	getEnumIds()
List<Enum<?>>	getEnums()
Enum<?>[]	getRawEnums()
int	lastValidIndex()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

_enumClass

protected final Class<Enum<?>> _enumClass

_enums

protected final Enum<?>[] _enums

_enumsById

protected final HashMap<String,Enum<?>> _enumsById

_defaultValue

protected final Enum<?> _defaultValue

Constructor Detail

EnumResolver

protected EnumResolver(Class<Enum<?>> enumClass,
                       Enum<?>[] enums,
                       HashMap<String,Enum<?>> map,
                       Enum<?> defaultValue)

Method Detail

constructFor

public static EnumResolver constructFor(Class<Enum<?>> enumCls,
                                        AnnotationIntrospector ai)

Factory method for constructing resolver that maps from Enum.name() into Enum value

constructUsingToString

@Deprecated
public static EnumResolver constructUsingToString(Class<Enum<?>> enumCls)

Deprecated. Since 2.8, use constructUsingToString(Class, AnnotationIntrospector) instead

constructUsingToString

public static EnumResolver constructUsingToString(Class<Enum<?>> enumCls,
                                                  AnnotationIntrospector ai)

Factory method for constructing resolver that maps from Enum.toString() into Enum value

Since:

2.8

constructUsingMethod

public static EnumResolver constructUsingMethod(Class<Enum<?>> enumCls,
                                                AnnotatedMember accessor,
                                                AnnotationIntrospector ai)

Since:

2.9

constructUnsafe

public static EnumResolver constructUnsafe(Class<?> rawEnumCls,
                                           AnnotationIntrospector ai)

This method is needed because of the dynamic nature of constructing Enum resolvers.

constructUnsafeUsingToString

public static EnumResolver constructUnsafeUsingToString(Class<?> rawEnumCls,
                                                        AnnotationIntrospector ai)

Method that needs to be used instead of constructUsingToString(java.lang.Class<java.lang.Enum<?>>) if static type of enum is not known.

Since:

2.8

constructUnsafeUsingMethod

public static EnumResolver constructUnsafeUsingMethod(Class<?> rawEnumCls,
                                                      AnnotatedMember accessor,
                                                      AnnotationIntrospector ai)

Method used when actual String serialization is indicated using @JsonValue on a method.

Since:

2.9

constructLookup

public CompactStringObjectMap constructLookup()

findEnum

public Enum<?> findEnum(String key)

getEnum

public Enum<?> getEnum(int index)

getDefaultValue

public Enum<?> getDefaultValue()

getRawEnums

public Enum<?>[] getRawEnums()

getEnums

public List<Enum<?>> getEnums()

getEnumIds

public Collection<String> getEnumIds()

Since:

2.7.3

getEnumClass

public Class<Enum<?>> getEnumClass()

lastValidIndex

public int lastValidIndex()