```
public class CollectionDelta
extends Object
```
Used internally to monitor and track changes in generic collections.

Fields
Modifier and Type	Field	Description
`protected ArrayList<DataSingleton>`	`added`
`protected String`	`cause`
`protected ArrayList<DataSingleton>`	`removed`
`protected ArrayList<DataSingleton>`	`unchanged`

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`<T extends DataSingleton> CollectionDelta`	`calcChanges(Collection<T> after)`
`<T extends DataSingleton> CollectionDelta`	`calcChanges(T[] after)`
`boolean`	`exists(DataSingleton item)`
`ArrayList<DataSingleton>`	`getAdded()`
`String`	`getCause()`
`boolean`	`hasChanged()`
`boolean`	`removeContains(DataSingleton item)`

protected ArrayList<DataSingleton> added

protected ArrayList<DataSingleton> unchanged

protected ArrayList<DataSingleton> removed

public CollectionDelta(String cause)

public CollectionDelta(String cause,
                       Collection<T> before)

public <T extends DataSingleton> CollectionDelta calcChanges(T[] after)

public <T extends DataSingleton> CollectionDelta calcChanges(Collection<T> after)

public boolean exists(DataSingleton item)

public boolean removeContains(DataSingleton item)

public ArrayList<DataSingleton> getAdded()

Constructor	Description
`CollectionDelta(String cause)`
`CollectionDelta(String cause, Collection<T> before)`

Class CollectionDelta