Examples of org.hibernate.id.enhanced.Optimizer.generate()

Class org.hibernate.id.enhanced.Optimizer

Examples of org.hibernate.id.enhanced.Optimizer.generate()

org.hibernate.id.enhanced.Optimizer.generate()
Generate an identifier value accounting for this specific optimization. @param callback Callback to access the underlying value source. @return The generated identifier value.

    next = (Long) optimizer.generate( sequence );
    assertEquals( (1001+1), next.intValue() );
    assertEquals( (5+1), sequence.getTimesCalled() );
    assertEquals( (1001+3), sequence.getCurrentValue() );


    next = (Long) optimizer.generate( sequence );
    assertEquals( (1001+2), next.intValue() );
    assertEquals( (5+1), sequence.getTimesCalled() );
    assertEquals( (1001+3), sequence.getCurrentValue() );


    // force a "clock over"

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    assertEquals( (1001+2), next.intValue() );
    assertEquals( (5+1), sequence.getTimesCalled() );
    assertEquals( (1001+3), sequence.getCurrentValue() );


    // force a "clock over"
    next = (Long) optimizer.generate( sequence );
    assertEquals( (1001+3), next.intValue() );
    assertEquals( (5+2), sequence.getTimesCalled() );
    assertEquals( (1001+6), sequence.getCurrentValue() );
  }

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    final Optimizer optimizer = OptimizerFactory.buildOptimizer( OptimizerFactory.POOL, Long.class, 3, 1 );


    assertEquals( 5, sequence.getTimesCalled() );
    assertEquals( 1001, sequence.getCurrentValue() );


    Long next = ( Long ) optimizer.generate( sequence );
    assertEquals( (1001), next.intValue() );
    assertEquals( (5+1), sequence.getTimesCalled() );
    assertEquals( (1001+3), sequence.getCurrentValue() );


    next = ( Long ) optimizer.generate( sequence );

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    Long next = ( Long ) optimizer.generate( sequence );
    assertEquals( (1001), next.intValue() );
    assertEquals( (5+1), sequence.getTimesCalled() );
    assertEquals( (1001+3), sequence.getCurrentValue() );


    next = ( Long ) optimizer.generate( sequence );
    assertEquals( (1001+1), next.intValue() );
    assertEquals( (5+1), sequence.getTimesCalled() );
    assertEquals( (1001+3), sequence.getCurrentValue() );


    next = ( Long ) optimizer.generate( sequence );

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    next = ( Long ) optimizer.generate( sequence );
    assertEquals( (1001+1), next.intValue() );
    assertEquals( (5+1), sequence.getTimesCalled() );
    assertEquals( (1001+3), sequence.getCurrentValue() );


    next = ( Long ) optimizer.generate( sequence );
    assertEquals( (1001+2), next.intValue() );
    assertEquals( (5+1), sequence.getTimesCalled() );
    assertEquals( (1001+3), sequence.getCurrentValue() );


//    // force a "clock over"

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    assertEquals( (1001+2), next.intValue() );
    assertEquals( (5+1), sequence.getTimesCalled() );
    assertEquals( (1001+3), sequence.getCurrentValue() );


//    // force a "clock over"
    next = ( Long ) optimizer.generate( sequence );
    assertEquals( (1001+3), next.intValue() );
    assertEquals( (5+2), sequence.getTimesCalled() );
    assertEquals( (1001+6), sequence.getCurrentValue() );
  }

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    final Optimizer optimizer = OptimizerFactory.buildOptimizer( OptimizerFactory.POOL, Long.class, 3, 1 );


    assertEquals( 0, sequence.getTimesCalled() );
    assertEquals( -1, sequence.getCurrentValue() );


    Long next = ( Long ) optimizer.generate( sequence );
    assertEquals( 1, next.intValue() );
    assertEquals( 2, sequence.getTimesCalled() );
    assertEquals( 4, sequence.getCurrentValue() );


    // app ends, and starts back up (we should "lose" only 2 and 3 as id values)

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    assertEquals( 2, sequence.getTimesCalled() );
    assertEquals( 4, sequence.getCurrentValue() );


    // app ends, and starts back up (we should "lose" only 2 and 3 as id values)
    final Optimizer optimizer2 = OptimizerFactory.buildOptimizer( OptimizerFactory.POOL, Long.class, 3, 1 );
    next = ( Long ) optimizer2.generate( sequence );
    assertEquals( 4, next.intValue() );
    assertEquals( 3, sequence.getTimesCalled() );
    assertEquals( 7, sequence.getCurrentValue() );
  }

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  public void testBasicNoOptimizerUsage() {
    // test historic sequence behavior, where the initial values start at 1...
    SourceMock sequence = new SourceMock( 1 );
    Optimizer optimizer = OptimizerFactory.buildOptimizer( OptimizerFactory.NONE, Long.class, 1 );
    for ( int i = 1; i < 11; i++ ) {
      final Long next = ( Long ) optimizer.generate( sequence );
      assertEquals( i, next.intValue() );
    }
    assertEquals( 10, sequence.getTimesCalled() );
    assertEquals( 10, sequence.getCurrentValue() );

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    // test historic table behavior, where the initial values started at 0 (we now force 1 to be the first used id value)
    sequence = new SourceMock( 0 );
    optimizer = OptimizerFactory.buildOptimizer( OptimizerFactory.NONE, Long.class, 1 );
    for ( int i = 1; i < 11; i++ ) {
      final Long next = ( Long ) optimizer.generate( sequence );
      assertEquals( i, next.intValue() );
    }
    assertEquals( 11, sequence.getTimesCalled() ); // an extra time to get to 1 initially
    assertEquals( 10, sequence.getCurrentValue() );
  }

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