Class LegacyHiLoAlgorithmOptimizer

  • All Implemented Interfaces:

    public class LegacyHiLoAlgorithmOptimizer
    extends AbstractOptimizer
    Slight variation from HiLoOptimizer, maintaining compatibility with the values generated by the legacy Hibernate hilo based generators.
    • Constructor Detail

      • LegacyHiLoAlgorithmOptimizer

        public LegacyHiLoAlgorithmOptimizer​(Class returnClass,
                                            int incrementSize)
        Constructs a LegacyHiLoAlgorithmOptimizer
        returnClass - The Java type of the values to be generated
        incrementSize - The increment size.
    • Method Detail

      • generate

        public Serializable generate​(AccessCallback callback)
        Description copied from interface: Optimizer
        Generate an identifier value accounting for this specific optimization. All known implementors are synchronized. Consider carefully if a new implementation could drop this requirement.
        callback - Callback to access the underlying value source.
        The generated identifier value.
      • getLastSourceValue

        public IntegralDataTypeHolder getLastSourceValue()
        Description copied from interface: Optimizer
        A common means to access the last value obtained from the underlying source. This is intended for testing purposes, since accessing the underlying database source directly is much more difficult.
        The last value we obtained from the underlying source; null indicates we have not yet consulted with the source.
      • applyIncrementSizeToSourceValues

        public boolean applyIncrementSizeToSourceValues()
        Description copied from interface: Optimizer
        Are increments to be applied to the values stored in the underlying value source?
        True if the values in the source are to be incremented according to the defined increment size; false otherwise, in which case the increment is totally an in memory construct.
      • getLastValue

        public IntegralDataTypeHolder getLastValue()
        Getter for property 'lastValue'.

        Exposure intended for testing purposes.

        Value for property 'lastValue'.