WritableFactories (Hadoop 1.2.2-SNAPSHOT API)

```
public class WritableFactories
extends Object
```
Factories for non-public writables. Defining a factory permits ObjectWritable to be able to construct instances of non-public classes.

方法
限定符和类型	方法和说明
`static WritableFactory`	`getFactory(Class c)` Define a factory for a class.
`static Writable`	`newInstance(Class<? extends Writable> c)` Create a new instance of a class with a defined factory.
`static Writable`	`newInstance(Class<? extends Writable> c, Configuration conf)` Create a new instance of a class with a defined factory.
`static void`	`setFactory(Class c, WritableFactory factory)` Define a factory for a class.

public static void setFactory(Class c,
              WritableFactory factory)

Define a factory for a class.

public static WritableFactory getFactory(Class c)

Define a factory for a class.

public static Writable newInstance(Class<? extends Writable> c,
                   Configuration conf)

Create a new instance of a class with a defined factory.

public static Writable newInstance(Class<? extends Writable> c)

Create a new instance of a class with a defined factory.

类 WritableFactories