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<div class="col-first odd-row-color class-summary class-summary-tab2"><a href="SqlgOptionalStepBarrier.html" title="class in org.umlg.sqlg.step.barrier">SqlgOptionalStepBarrier</a>&lt;S&gt;</div>
<div class="col-last odd-row-color class-summary class-summary-tab2">&nbsp;</div>
<div class="col-first even-row-color class-summary class-summary-tab2"><a href="SqlgOrStepBarrier.html" title="class in org.umlg.sqlg.step.barrier">SqlgOrStepBarrier</a>&lt;S&gt;</div>
<div class="col-last even-row-color class-summa