DbKeyGenerator (Zeebe Workflow Engine 1.1.5 API)

java.lang.Object
- io.camunda.zeebe.engine.state.processing.DbKeyGenerator

All Implemented Interfaces:: KeyGenerator, KeyGeneratorControls

public final class DbKeyGenerator
extends Object
implements KeyGeneratorControls

Constructor Summary

Constructors
Constructor	Description
`DbKeyGenerator(int partitionId, ZeebeDb zeebeDb, TransactionContext transactionContext)`	Initializes the key state with the corresponding partition id, so that unique keys are generated over all partitions.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`long`	`nextKey()`	Returns the next key of a record and updates the key generator.
`void`	`setKeyIfHigher(long key)`	Set the given value as the new key if it is higher than the current key.

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

- Constructor Detail
  - DbKeyGenerator
```
public DbKeyGenerator(int partitionId,
                      ZeebeDb zeebeDb,
                      TransactionContext transactionContext)
```
    Initializes the key state with the corresponding partition id, so that unique keys are generated over all partitions.
    
    Parameters:
    
    partitionId - the partition to determine the key start value
- Method Detail
  - nextKey
```
public long nextKey()
```
    Description copied from interface: KeyGenerator
    
    Returns the next key of a record and updates the key generator.
    
    Specified by:
    
    nextKey in interface KeyGenerator
    
    Returns:
    
    the next key for a new record
  - setKeyIfHigher
```
public void setKeyIfHigher(long key)
```
    Description copied from interface: KeyGeneratorControls
    
    Set the given value as the new key if it is higher than the current key.
    
    Specified by:
    
    setKeyIfHigher in interface KeyGeneratorControls
    
    Parameters:
    
    key - the new key