KeyConverter (Morphia)

java.lang.Object
- dev.morphia.converters.TypeConverter
- - dev.morphia.converters.KeyConverter

```
public class KeyConverter
extends TypeConverter
```
Author:

Uwe Schaefer, (us@thomas-daily.de), scotthernandez

Constructor Summary

Constructors
Constructor Description

KeyConverter()
Creates the Converter.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.Object`	`decode(java.lang.Class targetClass, java.lang.Object o, MappedField optionalExtraInfo)`	decode the `DBObject` and provide the corresponding java (type-safe) object NOTE: optionalExtraInfo might be null
`java.lang.Object`	`encode(java.lang.Object t, MappedField optionalExtraInfo)`	encode the (type-safe) java object into the corresponding `DBObject`

Methods inherited from class dev.morphia.converters.TypeConverter
decode, encode, equals, getMapper, getSupportTypes, hashCode, isSupported, oneOf, oneOfClasses, setMapper, setSupportedTypes, setSupportTypes

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

- Constructor Detail
  - KeyConverter
```
public KeyConverter()
```
    Creates the Converter.
- Method Detail
  - decode
```
public java.lang.Object decode(java.lang.Class targetClass,
                               java.lang.Object o,
                               MappedField optionalExtraInfo)
```
    Description copied from class: TypeConverter
    
    decode the DBObject and provide the corresponding java (type-safe) object
    NOTE: optionalExtraInfo might be null
    
    Specified by:
    
    decode in class TypeConverter
    
    Parameters:
    
    targetClass - the class to create and populate
    
    o - the DBObject to use when populating the new instance
    
    optionalExtraInfo - the MappedField that contains the metadata useful for decoding
    
    Returns:
    
    the new instance
  - encode
```
public java.lang.Object encode(java.lang.Object t,
                               MappedField optionalExtraInfo)
```
    Description copied from class: TypeConverter
    
    encode the (type-safe) java object into the corresponding DBObject
    
    Overrides:
    
    encode in class TypeConverter
    
    Parameters:
    
    t - The object to encode
    
    optionalExtraInfo - the MappedField that contains the metadata useful for decoding
    
    Returns:
    
    the encoded version of the object