IModelComparator (Wicket Parent 9.19.0-SNAPSHOT API)

All Superinterfaces:

IClusterable, Serializable

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface IModelComparator
extends IClusterable
```
Implementations of this interface compare model object. The component is given so that a developer can choose what the previous object is The default implementation for form components is just component.getModelObject(); But developers can choose to keep the last rendered value for that component and compare this value with the newObject. So that it doesn't overwrite values for an object that was changed by another session if the current session didn't touch that specific value.

Author:

jcompagner, Jonathan Locke

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  static IModelComparator ALWAYS_FALSE
  A model comparator that always returns false
- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  boolean compare(Component component, Object newObject)

- Field Detail
  - ALWAYS_FALSE
```
static final IModelComparator ALWAYS_FALSE
```
    A model comparator that always returns false
- Method Detail
  - compare
```
boolean compare(Component component,
                Object newObject)
```
    Parameters:
    
    component - The component which received the new object
    
    newObject - The newObject
    
    Returns:
    
    True if the previous components object is the same as the newObject.