java.lang.Object
- org.apache.camel.ValueHolder<String>
- - org.apache.camel.impl.transformer.TransformerKey

```
public final class TransformerKey
extends org.apache.camel.ValueHolder<String>
```
Key used in TransformerRegistry in AbstractCamelContext, to ensure a consistent lookup.

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`org.apache.camel.spi.DataType`	`getFrom()`
`String`	`getScheme()`
`org.apache.camel.spi.DataType`	`getTo()`
`String`	`toString()`

Methods inherited from class org.apache.camel.ValueHolder
equals, get, hashCode

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

public TransformerKey(String scheme)

public TransformerKey(org.apache.camel.spi.DataType from,
                      org.apache.camel.spi.DataType to)

public org.apache.camel.spi.DataType getFrom()

public org.apache.camel.spi.DataType getTo()

Constructor	Description
`TransformerKey(String scheme)`
`TransformerKey(org.apache.camel.spi.DataType from, org.apache.camel.spi.DataType to)`

Class TransformerKey