used by <a href="util/package-summary.html">io.permazen.core.util</a></span></div>
<div class="summary-table two-column-summary">
<div class="table-header col-first">Class</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color"><a href="class-use/ObjId.html#io.permazen.core.util">ObjId</a></div>
<div class="col-last even-row-color">
<div class="block">Object IDs.</div>
</div>
<div class="col-first odd-row-color"><a href="class-use/ReferenceField.html#io.permazen.core