org.datanucleus.store.valuegenerator
Class TimestampGenerator

java.lang.Object
  org.datanucleus.store.valuegenerator.AbstractGenerator
      org.datanucleus.store.valuegenerator.TimestampGenerator

All Implemented Interfaces:

ValueGenerator

public class TimestampGenerator
extends AbstractGenerator

Value generator for timestamps.

Field Summary

Fields inherited from class org.datanucleus.store.valuegenerator.AbstractGenerator

allocationSize, block, initialValue, LOCALISER, name, properties, repositoryExists

Constructor Summary

TimestampGenerator(java.lang.String name, java.util.Properties props)
Constructor.

Method Summary

protected ValueGenerationBlock

reserveBlock(long size) Method to reserve a block of values.

Methods inherited from class org.datanucleus.store.valuegenerator.AbstractGenerator

allocate, createRepository, current, currentValue, getName, getStorageClass, next, nextValue, obtainGenerationBlock, obtainGenerationBlock, repositoryExists, requiresRepository, reserveBlock

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TimestampGenerator

public TimestampGenerator(java.lang.String name,
                          java.util.Properties props)

Constructor.

Parameters:

name - Symbolic name of the generator

props - Any properties controlling its behaviour.

Method Detail

reserveBlock

protected ValueGenerationBlock reserveBlock(long size)

Method to reserve a block of values. Only ever reserves a single timestamp, to the time at which it is created.

Specified by:

reserveBlock in class AbstractGenerator

Parameters:

size - Number of elements to reserve.

Returns:

The block.