ass="block">Returns the effective index, which Persistence objects will use to determine the identity of the index making
 persistence requests.</div>
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<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#init(com.googlecode.cqengine.persistence.support.ObjectStore,com.googlecode.cqengine.query.option.QueryOptions)">init</a></span>&#8203;(<a href="../../persistence/support/ObjectStore.html" title="