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<div class="subTitle">org.janusgraph.graphdb.query</div>
<h2 title="Interface QueryExecutor" class="title">Interface QueryExecutor<Q extends <a href="../../../../org/janusgraph/graphdb/query/ElementQuery.html" title="interface in org.janusgraph.graphdb.query">ElementQuery</a>,R extends <a href="../../../../org/janusgraph/core/JanusGraphElement.html" title="interface in org.janusgraph.core">JanusGraphElement</a>,B extends <a href="../../../../org/janusgraph/graphdb/query/BackendQuery.html" title="interface in org.janusgraph.graphdb.query">BackendQuery</a>></h2>
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<dt>All Known Implementing Classes:</dt>
<dd><a href="../../../../org/janusgraph/graphdb/query/MetricsQueryExecutor.html" title="class in org.janusgraph.graphdb.query">MetricsQueryExecutor</a></dd>
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<pre>public interface <span class="typeNameLabel">QueryExecutor<Q extends <a href="../../../../org/janusgraph/graphdb/query/ElementQuery.html" title="interface in org.janusgraph.graphdb.query">ElementQuery</a>,R extends <a href="../../../../org/janusgraph/core/JanusGraphElement.html" title="interface in org.janusgraph.core">JanusGraphElement</a>,B extends <a href="../../../../org/janusgraph/graphdb/query/BackendQuery.html" title="interface in org.janusgraph.graphdb.query">BackendQuery</a>></span></pre>
<div class="block">Executes a given query and its subqueries against an underlying data store and transaction.</div>
<dl>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd>Matthias Broecheler (me@matthiasb.com)</dd>
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<h3>Method Summary</h3>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd"> </span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a><<a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html" title="type parameter in QueryExecutor">R</a>></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html#execute-Q-B-java.lang.Object-org.janusgraph.graphdb.query.profile.QueryProfiler-">execute</a></span>(<a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html" title="type parameter in QueryExecutor">Q</a> query,
<a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html" title="type parameter in QueryExecutor">B</a> subquery,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> executionInfo,
<a href="../../../../org/janusgraph/graphdb/query/profile/QueryProfiler.html" title="interface in org.janusgraph.graphdb.query.profile">QueryProfiler</a> profiler)</code>
<div class="block">Executes the given sub-query against a data store and returns an iterator over the results.</div>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a><<a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html" title="type parameter in QueryExecutor">R</a>></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html#getNew-Q-">getNew</a></span>(<a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html" title="type parameter in QueryExecutor">Q</a> query)</code>
<div class="block">Returns all newly created elements in a transactional context that match the given query.</div>
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<tr id="i2" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html#hasDeletions-Q-">hasDeletions</a></span>(<a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html" title="type parameter in QueryExecutor">Q</a> query)</code>
<div class="block">Whether the transactional context contains any deletions that could potentially affect the result set of the given query.</div>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html#isDeleted-Q-R-">isDeleted</a></span>(<a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html" title="type parameter in QueryExecutor">Q</a> query,
<a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html" title="type parameter in QueryExecutor">R</a> result)</code>
<div class="block">Whether the given result entry has been deleted in the transactional context and should hence be removed from the result set.</div>
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<h3>Method Detail</h3>
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<h4>getNew</h4>
<pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a><<a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html" title="type parameter in QueryExecutor">R</a>> getNew(<a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html" title="type parameter in QueryExecutor">Q</a> query)</pre>
<div class="block">Returns all newly created elements in a transactional context that match the given query.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>query</code> - </dd>
<dt><span class="returnLabel">Returns:</span></dt>
</dl>
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<h4>hasDeletions</h4>
<pre>boolean hasDeletions(<a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html" title="type parameter in QueryExecutor">Q</a> query)</pre>
<div class="block">Whether the transactional context contains any deletions that could potentially affect the result set of the given query.
This is used to determine whether results need to be checked for deletion with <a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html#isDeleted-Q-R-"><code>isDeleted(ElementQuery, org.janusgraph.core.JanusGraphElement)</code></a>.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>query</code> - </dd>
<dt><span class="returnLabel">Returns:</span></dt>
</dl>
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<h4>isDeleted</h4>
<pre>boolean isDeleted(<a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html" title="type parameter in QueryExecutor">Q</a> query,
<a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html" title="type parameter in QueryExecutor">R</a> result)</pre>
<div class="block">Whether the given result entry has been deleted in the transactional context and should hence be removed from the result set.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>query</code> - </dd>
<dd><code>result</code> - </dd>
<dt><span class="returnLabel">Returns:</span></dt>
</dl>
</li>
</ul>
<a name="execute-org.janusgraph.graphdb.query.ElementQuery-org.janusgraph.graphdb.query.BackendQuery-java.lang.Object-org.janusgraph.graphdb.query.profile.QueryProfiler-">
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<h4>execute</h4>
<pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a><<a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html" title="type parameter in QueryExecutor">R</a>> execute(<a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html" title="type parameter in QueryExecutor">Q</a> query,
<a href="../../../../org/janusgraph/graphdb/query/QueryExecutor.html" title="type parameter in QueryExecutor">B</a> subquery,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> executionInfo,
<a href="../../../../org/janusgraph/graphdb/query/profile/QueryProfiler.html" title="interface in org.janusgraph.graphdb.query.profile">QueryProfiler</a> profiler)</pre>
<div class="block">Executes the given sub-query against a data store and returns an iterator over the results. These results are not yet adjusted
to any modification made in the transactional context which are done by the <a href="../../../../org/janusgraph/graphdb/query/QueryProcessor.html" title="class in org.janusgraph.graphdb.query"><code>QueryProcessor</code></a> using the other methods
of this interface.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>query</code> - </dd>
<dd><code>subquery</code> - </dd>
<dd><code>executionInfo</code> - </dd>
<dd><code>profiler</code> - </dd>
<dt><span class="returnLabel">Returns:</span></dt>
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