ReviewDbUtil (Gerrit Review Plugin API Documentation)

java.lang.Object
- com.google.gerrit.reviewdb.server.ReviewDbUtil

public class ReviewDbUtil
extends Object

Static utilities for ReviewDb types.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static void`	`checkColumns(Class<?> clazz, Integer... expected)`
`static <K extends com.google.gwtorm.client.IntKey<?>> com.google.common.collect.Ordering<K>`	`intKeyOrdering()`	Null-safe ordering over arbitrary subclass of `IntKey`.
`static ReviewDb`	`unwrapDb(ReviewDb db)`

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

- Method Detail
  - intKeyOrdering
```
public static <K extends com.google.gwtorm.client.IntKey<?>> com.google.common.collect.Ordering<K> intKeyOrdering()
```
    Null-safe ordering over arbitrary subclass of IntKey.
    In some cases, Comparator.comparing(Change.Id::get) may be shorter and cleaner. However, this method may be preferable in some cases:
    
    This ordering is null-safe over both input and the result of IntKey.get(); comparing is only a good idea if all inputs are obviously non-null.
    intKeyOrdering().sortedCopy(iterable) is shorter than the stream equivalent.
    Creating derived comparators may be more readable with Ordering method chaining rather than static Comparator methods.
  - unwrapDb
```
public static ReviewDb unwrapDb(ReviewDb db)
```
  - checkColumns
```
public static void checkColumns(Class<?> clazz,
                                Integer... expected)
```