IdentifyLiveContents (nessie-gc-base 0.46.5 API)

java.lang.Object
- org.projectnessie.gc.identify.IdentifyLiveContents

```
@Immutable
public abstract class IdentifyLiveContents
extends java.lang.Object
```
Identifies all live Content objects in Nessie, the mark phase of the mark-and-sweep approach.
Nessie's garbage collection is a mark-and-sweep collector. Instances of this class should only be used once.
This class implements the mark phase that identifies all live content objects.
Behavior of this class is controlled via a couple of parameters, which provide:
- A function to retrieve the cut-off timestamp for a reference.
- A predicate to test whether a content type is handled by the GC run.
- A consumer via liveContentSetsRepository() for the identified live content objects}.
- The desired number of named-references being walked concurrently.
- A de-duplication functionality to prevent walking the same commit(s) with compatible cut-off timestamps.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static interface IdentifyLiveContents.Builder

Field Summary

Fields
Modifier and Type Field Description

static int DEFAULT_PARALLELISM

Constructor Summary

Constructors
Constructor Description

IdentifyLiveContents()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static IdentifyLiveContents.Builder`	`builder()`
`java.util.UUID`	`identifyLiveContents()`	Identifies the live content objects.

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

- Field Detail
  - DEFAULT_PARALLELISM
```
public static final int DEFAULT_PARALLELISM
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - IdentifyLiveContents
```
public IdentifyLiveContents()
```
- Method Detail
  - builder
```
public static IdentifyLiveContents.Builder builder()
```
  - identifyLiveContents
```
public java.util.UUID identifyLiveContents()
```
    Identifies the live content objects.
    
    Returns:
    
    the ID of the live-contents-set, from AddContents.id(), which is used to later retrieve the LiveContentSet used by Expire implementations via ExpireParameters.liveContentSet().