Transformer (Infinispan JavaDoc 13.0.10.Final-redhat-00001 API)

```
public interface Transformer
```
Converts objects (cache keys only) to and from their Java types to String representations so that Infinispan can index them. You need to convert custom types only. Infinispan transforms boxed primitives, java.lang.String, java.util.UUID, and byte arrays internally.
Implementations must be thread-safe! It is recommended they are also stateless.

Since:

4.0

Author:

Manik Surtani

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Object`	`fromString(String str)`	Transforms a String into an Object.
`String`	`toString(Object obj)`	Transforms an Object into a String.

- Method Detail
  - fromString
```
Object fromString(String str)
```
    Transforms a String into an Object.
    
    Parameters:
    
    str - cannot be null
    
    Returns:
    
    the Object that is encoded in the given String
  - toString
```
String toString(Object obj)
```
    Transforms an Object into a String.
    
    Parameters:
    
    obj - cannot be null
    
    Returns:
    
    the String representation of the object