java.lang.Object
- com.fasterxml.jackson.databind.util.EnumResolver

All Implemented Interfaces:

java.io.Serializable
```
public class EnumResolver
extends java.lang.Object
implements java.io.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

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static EnumResolver`	`constructFor(DeserializationConfig config, java.lang.Class<?> enumCls)`	Factory method for constructing resolver that maps from Enum.name() into Enum value.
`CompactStringObjectMap`	`constructLookup()`
`static EnumResolver`	`constructUsingEnumNamingStrategy(DeserializationConfig config, java.lang.Class<?> enumCls, EnumNamingStrategy enumNamingStrategy)`	Factory method for constructing resolver that maps the name of enums converted to external property names into Enum value using an implementation of `EnumNamingStrategy`.
`static EnumResolver`	`constructUsingIndex(DeserializationConfig config, java.lang.Class<java.lang.Enum<?>> enumCls)`	Factory method for constructing resolver that maps from index of Enum.values() into Enum value
`static EnumResolver`	`constructUsingMethod(DeserializationConfig config, java.lang.Class<?> enumCls, AnnotatedMember accessor)`	Method used when actual String serialization is indicated using @JsonValue on a method in Enum class.
`static EnumResolver`	`constructUsingToString(DeserializationConfig config, java.lang.Class<?> enumCls)`	Factory method for constructing resolver that maps from Enum.toString() into Enum value
`java.lang.Enum<?>`	`findEnum(java.lang.String key)`
`java.lang.Enum<?>`	`getDefaultValue()`
`java.lang.Enum<?>`	`getEnum(int index)`
`java.lang.Class<java.lang.Enum<?>>`	`getEnumClass()`
`java.util.Collection<java.lang.String>`	`getEnumIds()`
`java.util.List<java.lang.Enum<?>>`	`getEnums()`
`java.lang.Enum<?>[]`	`getRawEnums()`
`boolean`	`isFromIntValue()`	Accessor for checking if we have a special case in which value to map is from `@JsonValue` annotated accessor with integral type: this matters for cases where incoming content value is of integral type and should be mapped to specific value and NOT to `Enum.index()`.
`int`	`lastValidIndex()`

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

Method Detail

constructFor

public static EnumResolver constructFor(DeserializationConfig config,
                                        java.lang.Class<?> enumCls)

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

Since:: 2.12

constructUsingToString

public static EnumResolver constructUsingToString(DeserializationConfig config,
                                                  java.lang.Class<?> enumCls)

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

Since:: 2.12

constructUsingIndex

public static EnumResolver constructUsingIndex(DeserializationConfig config,
                                               java.lang.Class<java.lang.Enum<?>> enumCls)

Factory method for constructing resolver that maps from index of Enum.values() into Enum value

Since:: 2.15

constructUsingEnumNamingStrategy
```
public static EnumResolver constructUsingEnumNamingStrategy(DeserializationConfig config,
                                                            java.lang.Class<?> enumCls,
                                                            EnumNamingStrategy enumNamingStrategy)
```
Factory method for constructing resolver that maps the name of enums converted to external property names into Enum value using an implementation of EnumNamingStrategy. The output EnumResolver should contain values that are symmetric to EnumValues.constructUsingEnumNamingStrategy(MapperConfig, Class, EnumNamingStrategy).

Since:

2.15

constructUsingMethod

public static EnumResolver constructUsingMethod(DeserializationConfig config,
                                                java.lang.Class<?> enumCls,
                                                AnnotatedMember accessor)

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

Since:: 2.12

constructLookup

public CompactStringObjectMap constructLookup()

findEnum

public java.lang.Enum<?> findEnum(java.lang.String key)

getEnum

public java.lang.Enum<?> getEnum(int index)

getDefaultValue

public java.lang.Enum<?> getDefaultValue()

getRawEnums

public java.lang.Enum<?>[] getRawEnums()

getEnums

public java.util.List<java.lang.Enum<?>> getEnums()

getEnumIds

public java.util.Collection<java.lang.String> getEnumIds()

Since:: 2.7.3

getEnumClass

public java.lang.Class<java.lang.Enum<?>> getEnumClass()

lastValidIndex
```
public int lastValidIndex()
```

isFromIntValue
```
public boolean isFromIntValue()
```
Accessor for checking if we have a special case in which value to map is from @JsonValue annotated accessor with integral type: this matters for cases where incoming content value is of integral type and should be mapped to specific value and NOT to Enum.index().

Since:

2.13

Class EnumResolver