KeyStrategyDigest (Nuxeo 2021.1.19 API Documentation)

java.lang.Object
- org.nuxeo.ecm.core.blob.KeyStrategyDigest

All Implemented Interfaces:

KeyStrategy
```
public class KeyStrategyDigest
extends Object
implements KeyStrategy
```
Represents computation of blob keys based on a message digest.

Since:

11.1

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class KeyStrategyDigest.WriteObserverDigest
Write observer computing a digest.
- Nested classes/interfaces inherited from interface org.nuxeo.ecm.core.blob.KeyStrategy
  KeyStrategy.WriteObserver

Field Summary

Fields
Modifier and Type Field Description

String digestAlgorithm
- Fields inherited from interface org.nuxeo.ecm.core.blob.KeyStrategy
  VER_SEP

Constructor Summary

Constructors
Constructor Description

KeyStrategyDigest(String digestAlgorithm)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object obj)`
`BlobWriteContext`	`getBlobWriteContext(BlobContext blobContext)`	Gets the write context for the given blob.
`String`	`getDigestFromKey(String key)`	Gets, if possible, a digest from the key.
`int`	`hashCode()`
`boolean`	`useDeDuplication()`	Checks whether this key strategy uses de-duplication.

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

- Field Detail
  - digestAlgorithm
```
public final String digestAlgorithm
```
- Constructor Detail
  - KeyStrategyDigest
```
public KeyStrategyDigest(String digestAlgorithm)
```
- Method Detail
  - useDeDuplication
```
public boolean useDeDuplication()
```
    Description copied from interface: KeyStrategy
    
    Checks whether this key strategy uses de-duplication. When de-duplication is used, two blobs with identical contents have identical keys.
    
    Specified by:
    
    useDeDuplication in interface KeyStrategy
  - getDigestFromKey
```
public String getDigestFromKey(String key)
```
    Description copied from interface: KeyStrategy
    
    Gets, if possible, a digest from the key. This is not possible if the key is not derived from a digest.
    
    Specified by:
    
    getDigestFromKey in interface KeyStrategy
    
    Parameters:
    
    key - the key
    
    Returns:
    
    a digest, or null
  - getBlobWriteContext
```
public BlobWriteContext getBlobWriteContext(BlobContext blobContext)
```
    Description copied from interface: KeyStrategy
    
    Gets the write context for the given blob.
    
    Specified by:
    
    getBlobWriteContext in interface KeyStrategy
  - equals
```
public boolean equals(Object obj)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object