BlockingIdentifierGenerator (hibernate-reactive-core 2.0.0.Final API)

java.lang.Object
- org.hibernate.reactive.id.impl.BlockingIdentifierGenerator

All Implemented Interfaces:

ReactiveIdentifierGenerator<java.lang.Long>

Direct Known Subclasses:

ReactiveSequenceIdentifierGenerator, TableReactiveIdentifierGenerator
```
public abstract class BlockingIdentifierGenerator
extends java.lang.Object
implements ReactiveIdentifierGenerator<java.lang.Long>
```
A ReactiveIdentifierGenerator which uses the database to allocate blocks of ids. A block is identified by its "hi" value (the first id in the block). While a new block is being allocated, concurrent streams will defer the operation without blocking.

Constructor Summary

Constructors
Constructor Description

BlockingIdentifierGenerator()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`java.util.concurrent.CompletionStage<java.lang.Long>`	`generate(ReactiveConnectionSupplier connectionSupplier, java.lang.Object ignored)`	Returns a generated identifier, via a `CompletionStage`.
`protected abstract int`	`getBlockSize()`	The block size (the number of "lo" values for each "hi" value)
`protected abstract java.util.concurrent.CompletionStage<java.lang.Long>`	`nextHiValue(ReactiveConnectionSupplier session)`	Allocate a new block, by obtaining the next "hi" value from the database

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

- Constructor Detail
  - BlockingIdentifierGenerator
```
public BlockingIdentifierGenerator()
```
- Method Detail
  - getBlockSize
```
protected abstract int getBlockSize()
```
    The block size (the number of "lo" values for each "hi" value)
  - nextHiValue
```
protected abstract java.util.concurrent.CompletionStage<java.lang.Long> nextHiValue(ReactiveConnectionSupplier session)
```
    Allocate a new block, by obtaining the next "hi" value from the database
  - generate
```
public java.util.concurrent.CompletionStage<java.lang.Long> generate(ReactiveConnectionSupplier connectionSupplier,
                                                                     java.lang.Object ignored)
```
    Description copied from interface: ReactiveIdentifierGenerator
    
    Returns a generated identifier, via a CompletionStage.
    
    Specified by:
    
    generate in interface ReactiveIdentifierGenerator<java.lang.Long>
    
    Parameters:
    
    connectionSupplier - the reactive session