BlobRepository (Solr 9.6.1 core API)

java.lang.Object
- org.apache.solr.core.BlobRepository

```
public class BlobRepository
extends Object
```
The purpose of this class is to store the Jars loaded in memory and to keep only one copy of the Jar in a single node.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`BlobRepository.BlobContent<T>`
`static class`	`BlobRepository.BlobContentRef<T>`
`static interface`	`BlobRepository.Decoder<T>`

Field Summary

Fields
Modifier and Type Field Description

static Random RANDOM

Constructor Summary

Constructors
Constructor Description

BlobRepository(CoreContainer coreContainer)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`decrementBlobRefCount(BlobRepository.BlobContentRef<?> ref)`	This is to decrement a ref count
`BlobRepository.BlobContentRef<ByteBuffer>`	`getBlobIncRef(String key)`	Returns the contents of a blob containing a ByteBuffer and increments a reference count.
`static String`	`sha512Digest(ByteBuffer byteBuffer)`

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

- Field Detail
  - RANDOM
```
public static final Random RANDOM
```
- Constructor Detail
  - BlobRepository
```
public BlobRepository(CoreContainer coreContainer)
```
- Method Detail
  - getBlobIncRef
```
public BlobRepository.BlobContentRef<ByteBuffer> getBlobIncRef(String key)
```
    Returns the contents of a blob containing a ByteBuffer and increments a reference count. Please return the same object to decrease the refcount. This is normally used for storing jar files, and binary raw data. If you are caching Java Objects you want to use SolrCore#loadDecodeAndCacheBlob(String, Decoder)
    
    Parameters:
    
    key - it is a combination of blobname and version like blobName/version
    
    Returns:
    
    The reference of a blob
  - sha512Digest
```
public static String sha512Digest(ByteBuffer byteBuffer)
```
  - decrementBlobRefCount
```
public void decrementBlobRefCount(BlobRepository.BlobContentRef<?> ref)
```
    This is to decrement a ref count
    
    Parameters:
    
    ref - The reference that is already there. Doing multiple calls with same ref will not matter