DiscriminatorFunction (Morphia)

java.lang.Object
- dev.morphia.mapping.DiscriminatorFunction

```
public abstract class DiscriminatorFunction
extends Object
```
Defines a function to calculate a discriminator value. This function is only applied if the existing value is the annotation default value.

Constructor Summary

Constructors
Constructor Description

DiscriminatorFunction()

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`apply(EntityModelBuilder builder)`	Applies the function to the given model to determine the discriminator value
`static DiscriminatorFunction`	`className()`	Defines a function to use the class name for the discriminator value
`protected abstract String`	`compute(EntityModelBuilder builder)`
`static DiscriminatorFunction`	`lowerClassName()`	Defines a function to use the lowercase class name for the discriminator value
`static DiscriminatorFunction`	`lowerSimpleName()`	Defines a function to use the lowercase simple class name for the discriminator value
`static DiscriminatorFunction`	`simpleName()`	Defines a function to use the simple class name for the discriminator value

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

- Constructor Detail
  - DiscriminatorFunction
```
public DiscriminatorFunction()
```
- Method Detail
  - className
```
public static DiscriminatorFunction className()
```
    Defines a function to use the class name for the discriminator value
    
    Returns:
    
    the function
  - lowerClassName
```
public static DiscriminatorFunction lowerClassName()
```
    Defines a function to use the lowercase class name for the discriminator value
    
    Returns:
    
    the function
  - lowerSimpleName
```
public static DiscriminatorFunction lowerSimpleName()
```
    Defines a function to use the lowercase simple class name for the discriminator value
    
    Returns:
    
    the function
  - simpleName
```
public static DiscriminatorFunction simpleName()
```
    Defines a function to use the simple class name for the discriminator value
    
    Returns:
    
    the function
  - apply
```
public final void apply(EntityModelBuilder builder)
```
    Applies the function to the given model to determine the discriminator value
    
    Parameters:
    
    builder - the builder to evaluate
  - compute
```
protected abstract String compute(EntityModelBuilder builder)
```