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<div class="subTitle">com.fluidops.fedx.evaluation</div>
<h2 title="Interface TripleSource" class="title">Interface TripleSource</h2>
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<dl>
<dt>All Known Implementing Classes:</dt>
<dd><a href="../../../../com/fluidops/fedx/evaluation/SailTripleSource.html" title="class in com.fluidops.fedx.evaluation">SailTripleSource</a>, <a href="../../../../com/fluidops/fedx/evaluation/SparqlTripleSource.html" title="class in com.fluidops.fedx.evaluation">SparqlTripleSource</a>, <a href="../../../../com/fluidops/fedx/evaluation/TripleSourceBase.html" title="class in com.fluidops.fedx.evaluation">TripleSourceBase</a></dd>
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<pre>public interface <a href="../../../../src-html/com/fluidops/fedx/evaluation/TripleSource.html#line.50">TripleSource</a></pre>
<div class="block">Interface for implementations of triple sources. Particular implementations define
 how to evaluate the expression on the endpoint. Different implementations might
 be necessary depending on the underlying repository.</div>
<dl><dt><span class="strong">Author:</span></dt>
  <dd>Andreas Schwarte</dd>
<dt><span class="strong">See Also:</span></dt><dd><a href="../../../../com/fluidops/fedx/evaluation/SparqlTripleSource.html" title="class in com.fluidops.fedx.evaluation"><code>SparqlTripleSource</code></a>, 
<a href="../../../../com/fluidops/fedx/evaluation/SailTripleSource.html" title="class in com.fluidops.fedx.evaluation"><code>SailTripleSource</code></a></dd></dl>
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<!-- ========== METHOD SUMMARY =========== -->
<ul class="blockList">
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<h3>Method Summary</h3>
<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
<caption><span>Methods</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>info.aduna.iteration.CloseableIteration&lt;org.openrdf.model.Statement,org.openrdf.query.QueryEvaluationException&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../com/fluidops/fedx/evaluation/TripleSource.html#getStatements(org.openrdf.repository.RepositoryConnection, org.openrdf.model.Resource, org.openrdf.model.URI, org.openrdf.model.Value, org.openrdf.model.Resource...)">getStatements</a></strong>(org.openrdf.repository.RepositoryConnection&nbsp;conn,
                          org.openrdf.model.Resource&nbsp;subj,
                          org.openrdf.model.URI&nbsp;pred,
                          org.openrdf.model.Value&nbsp;obj,
                          org.openrdf.model.Resource...&nbsp;contexts)</code>
<div class="block">Return the statements matching the given pattern as a <code>Statement</code> iteration.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>info.aduna.iteration.CloseableIteration&lt;org.openrdf.query.BindingSet,org.openrdf.query.QueryEvaluationException&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../com/fluidops/fedx/evaluation/TripleSource.html#getStatements(org.openrdf.query.algebra.StatementPattern, org.openrdf.repository.RepositoryConnection, org.openrdf.query.BindingSet, com.fluidops.fedx.algebra.FilterValueExpr)">getStatements</a></strong>(org.openrdf.query.algebra.StatementPattern&nbsp;stmt,
                          org.openrdf.repository.RepositoryConnection&nbsp;conn,
                          org.openrdf.query.BindingSet&nbsp;bindings,
                          <a href="../../../../com/fluidops/fedx/algebra/FilterValueExpr.html" title="interface in com.fluidops.fedx.algebra">FilterValueExpr</a>&nbsp;filterExpr)</code>
<div class="block">Evaluate the query expression on the provided endpoint.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>info.aduna.iteration.CloseableIteration&lt;org.openrdf.query.BindingSet,org.openrdf.query.QueryEvaluationException&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../com/fluidops/fedx/evaluation/TripleSource.html#getStatements(java.lang.String, org.openrdf.repository.RepositoryConnection, org.openrdf.query.BindingSet, com.fluidops.fedx.algebra.FilterValueExpr)">getStatements</a></strong>(java.lang.String&nbsp;preparedQuery,
                          org.openrdf.repository.RepositoryConnection&nbsp;conn,
                          org.openrdf.query.BindingSet&nbsp;bindings,
                          <a href="../../../../com/fluidops/fedx/algebra/FilterValueExpr.html" title="interface in com.fluidops.fedx.algebra">FilterValueExpr</a>&nbsp;filterExpr)</code>
<div class="block">Evaluate the prepared query (SPARQL query as String) on the provided endpoint.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>info.aduna.iteration.CloseableIteration&lt;org.openrdf.query.BindingSet,org.openrdf.query.QueryEvaluationException&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../com/fluidops/fedx/evaluation/TripleSource.html#getStatements(java.lang.String, org.openrdf.repository.RepositoryConnection, com.fluidops.fedx.structures.QueryType)">getStatements</a></strong>(java.lang.String&nbsp;preparedQuery,
                          org.openrdf.repository.RepositoryConnection&nbsp;conn,
                          <a href="../../../../com/fluidops/fedx/structures/QueryType.html" title="enum in com.fluidops.fedx.structures">QueryType</a>&nbsp;queryType)</code>
<div class="block">Evaluate a given SPARQL query of the provided query type at the given source.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>info.aduna.iteration.CloseableIteration&lt;org.openrdf.query.BindingSet,org.openrdf.query.QueryEvaluationException&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../com/fluidops/fedx/evaluation/TripleSource.html#getStatements(org.openrdf.query.algebra.TupleExpr, org.openrdf.repository.RepositoryConnection, org.openrdf.query.BindingSet, com.fluidops.fedx.algebra.FilterValueExpr)">getStatements</a></strong>(org.openrdf.query.algebra.TupleExpr&nbsp;preparedQuery,
                          org.openrdf.repository.RepositoryConnection&nbsp;conn,
                          org.openrdf.query.BindingSet&nbsp;bindings,
                          <a href="../../../../com/fluidops/fedx/algebra/FilterValueExpr.html" title="interface in com.fluidops.fedx.algebra">FilterValueExpr</a>&nbsp;filterExpr)</code>
<div class="block">Evaluate the prepared query in its internal representation on the provided endpoint.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/fluidops/fedx/evaluation/TripleSource.html#hasStatements(com.fluidops.fedx.algebra.ExclusiveGroup, org.openrdf.repository.RepositoryConnection, org.openrdf.query.BindingSet)">hasStatements</a></strong>(<a href="../../../../com/fluidops/fedx/algebra/ExclusiveGroup.html" title="class in com.fluidops.fedx.algebra">ExclusiveGroup</a>&nbsp;group,
                          org.openrdf.repository.RepositoryConnection&nbsp;conn,
                          org.openrdf.query.BindingSet&nbsp;bindings)</code>
<div class="block">Check if the repository can return results for the given <a href="../../../../com/fluidops/fedx/algebra/ExclusiveGroup.html" title="class in com.fluidops.fedx.algebra"><code>ExclusiveGroup</code></a>,
 i.e.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/fluidops/fedx/evaluation/TripleSource.html#hasStatements(org.openrdf.repository.RepositoryConnection, org.openrdf.model.Resource, org.openrdf.model.URI, org.openrdf.model.Value, org.openrdf.model.Resource...)">hasStatements</a></strong>(org.openrdf.repository.RepositoryConnection&nbsp;conn,
                          org.openrdf.model.Resource&nbsp;subj,
                          org.openrdf.model.URI&nbsp;pred,
                          org.openrdf.model.Value&nbsp;obj,
                          org.openrdf.model.Resource...&nbsp;contexts)</code>
<div class="block">Check if the repository can return results for the given triple pattern represented
 by subj, pred and obj</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/fluidops/fedx/evaluation/TripleSource.html#hasStatements(org.openrdf.query.algebra.StatementPattern, org.openrdf.repository.RepositoryConnection, org.openrdf.query.BindingSet)">hasStatements</a></strong>(org.openrdf.query.algebra.StatementPattern&nbsp;stmt,
                          org.openrdf.repository.RepositoryConnection&nbsp;conn,
                          org.openrdf.query.BindingSet&nbsp;bindings)</code>
<div class="block">Check if the provided statement can return results.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/fluidops/fedx/evaluation/TripleSource.html#usePreparedQuery()">usePreparedQuery</a></strong>()</code>&nbsp;</td>
</tr>
</table>
</li>
</ul>
</li>
</ul>
</div>
<div class="details">
<ul class="blockList">
<li class="blockList">
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<h3>Method Detail</h3>
<a name="getStatements(org.openrdf.query.algebra.TupleExpr, org.openrdf.repository.RepositoryConnection, org.openrdf.query.BindingSet, com.fluidops.fedx.algebra.FilterValueExpr)">
<!--   -->
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<h4>getStatements</h4>
<pre>info.aduna.iteration.CloseableIteration&lt;org.openrdf.query.BindingSet,org.openrdf.query.QueryEvaluationException&gt;&nbsp;<a href="../../../../src-html/com/fluidops/fedx/evaluation/TripleSource.html#line.72">getStatements</a>(org.openrdf.query.algebra.TupleExpr&nbsp;preparedQuery,
                                                                                                                             org.openrdf.repository.RepositoryConnection&nbsp;conn,
                                                                                                                             org.openrdf.query.BindingSet&nbsp;bindings,
                                                                                                                             <a href="../../../../com/fluidops/fedx/algebra/FilterValueExpr.html" title="interface in com.fluidops.fedx.algebra">FilterValueExpr</a>&nbsp;filterExpr)
                                                                                                                               throws org.openrdf.repository.RepositoryException,
                                                                                                                                      org.openrdf.query.MalformedQueryException,
                                                                                                                                      org.openrdf.query.QueryEvaluationException</pre>
<div class="block">Evaluate the prepared query in its internal representation on the provided endpoint.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>preparedQuery</code> - a prepared query to evaluate</dd><dd><code>conn</code> - the connection to the endpoint</dd><dd><code>bindings</code> - the bindings to use</dd><dd><code>filterExpr</code> - the filter expression to apply or null if there is no filter or if it is evaluated already</dd>
<dt><span class="strong">Returns:</span></dt><dd>the resulting iteration</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>org.openrdf.repository.RepositoryException</code></dd>
<dd><code>org.openrdf.query.MalformedQueryException</code></dd>
<dd><code>org.openrdf.query.QueryEvaluationException</code></dd></dl>
</li>
</ul>
<a name="getStatements(java.lang.String, org.openrdf.repository.RepositoryConnection, org.openrdf.query.BindingSet, com.fluidops.fedx.algebra.FilterValueExpr)">
<!--   -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getStatements</h4>
<pre>info.aduna.iteration.CloseableIteration&lt;org.openrdf.query.BindingSet,org.openrdf.query.QueryEvaluationException&gt;&nbsp;<a href="../../../../src-html/com/fluidops/fedx/evaluation/TripleSource.html#line.94">getStatements</a>(java.lang.String&nbsp;preparedQuery,
                                                                                                                             org.openrdf.repository.RepositoryConnection&nbsp;conn,
                                                                                                                             org.openrdf.query.BindingSet&nbsp;bindings,
                                                                                                                             <a href="../../../../com/fluidops/fedx/algebra/FilterValueExpr.html" title="interface in com.fluidops.fedx.algebra">FilterValueExpr</a>&nbsp;filterExpr)
                                                                                                                               throws org.openrdf.repository.RepositoryException,
                                                                                                                                      org.openrdf.query.MalformedQueryException,
                                                                                                                                      org.openrdf.query.QueryEvaluationException</pre>
<div class="block">Evaluate the prepared query (SPARQL query as String) on the provided endpoint.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>preparedQuery</code> - a prepared query to evaluate (SPARQL query as String)</dd><dd><code>conn</code> - the connection to the endpoint</dd><dd><code>bindings</code> - the bindings to use</dd><dd><code>filterExpr</code> - the filter expression to apply or null if there is no filter or if it is evaluated already</dd>
<dt><span class="strong">Returns:</span></dt><dd>the resulting iteration</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>org.openrdf.repository.RepositoryException</code></dd>
<dd><code>org.openrdf.query.MalformedQueryException</code></dd>
<dd><code>org.openrdf.query.QueryEvaluationException</code></dd></dl>
</li>
</ul>
<a name="getStatements(java.lang.String, org.openrdf.repository.RepositoryConnection, com.fluidops.fedx.structures.QueryType)">
<!--   -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getStatements</h4>
<pre>info.aduna.iteration.CloseableIteration&lt;org.openrdf.query.BindingSet,org.openrdf.query.QueryEvaluationException&gt;&nbsp;<a href="../../../../src-html/com/fluidops/fedx/evaluation/TripleSource.html#line.107">getStatements</a>(java.lang.String&nbsp;preparedQuery,
                                                                                                                             org.openrdf.repository.RepositoryConnection&nbsp;conn,
                                                                                                                             <a href="../../../../com/fluidops/fedx/structures/QueryType.html" title="enum in com.fluidops.fedx.structures">QueryType</a>&nbsp;queryType)
                                                                                                                               throws org.openrdf.repository.RepositoryException,
                                                                                                                                      org.openrdf.query.MalformedQueryException,
                                                                                                                                      org.openrdf.query.QueryEvaluationException</pre>
<div class="block">Evaluate a given SPARQL query of the provided query type at the given source.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>preparedQuery</code> - </dd><dd><code>conn</code> - </dd><dd><code>queryType</code> - </dd>
<dt><span class="strong">Returns:</span></dt><dd></dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>org.openrdf.repository.RepositoryException</code></dd>
<dd><code>org.openrdf.query.MalformedQueryException</code></dd>
<dd><code>org.openrdf.query.QueryEvaluationException</code></dd></dl>
</li>
</ul>
<a name="getStatements(org.openrdf.query.algebra.StatementPattern, org.openrdf.repository.RepositoryConnection, org.openrdf.query.BindingSet, com.fluidops.fedx.algebra.FilterValueExpr)">
<!--   -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getStatements</h4>
<pre>info.aduna.iteration.CloseableIteration&lt;org.openrdf.query.BindingSet,org.openrdf.query.QueryEvaluationException&gt;&nbsp;<a href="../../../../src-html/com/fluidops/fedx/evaluation/TripleSource.html#line.128">getStatements</a>(org.openrdf.query.algebra.StatementPattern&nbsp;stmt,
                                                                                                                             org.openrdf.repository.RepositoryConnection&nbsp;conn,
                                                                                                                             org.openrdf.query.BindingSet&nbsp;bindings,
                                                                                                                             <a href="../../../../com/fluidops/fedx/algebra/FilterValueExpr.html" title="interface in com.fluidops.fedx.algebra">FilterValueExpr</a>&nbsp;filterExpr)
                                                                                                                               throws org.openrdf.repository.RepositoryException,
                                                                                                                                      org.openrdf.query.MalformedQueryException,
                                                                                                                                      org.openrdf.query.QueryEvaluationException</pre>
<div class="block">Evaluate the query expression on the provided endpoint.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>stmt</code> - the stmt expression to evaluate</dd><dd><code>conn</code> - the connection to the endpoint</dd><dd><code>bindings</code> - the bindings to use</dd><dd><code>filterExpr</code> - the filter expression to apply or null if there is no filter or if it is evaluated already</dd>
<dt><span class="strong">Returns:</span></dt><dd>the resulting iteration</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>org.openrdf.repository.RepositoryException</code></dd>
<dd><code>org.openrdf.query.MalformedQueryException</code></dd>
<dd><code>org.openrdf.query.QueryEvaluationException</code></dd></dl>
</li>
</ul>
<a name="getStatements(org.openrdf.repository.RepositoryConnection, org.openrdf.model.Resource, org.openrdf.model.URI, org.openrdf.model.Value, org.openrdf.model.Resource...)">
<!--   -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getStatements</h4>
<pre>info.aduna.iteration.CloseableIteration&lt;org.openrdf.model.Statement,org.openrdf.query.QueryEvaluationException&gt;&nbsp;<a href="../../../../src-html/com/fluidops/fedx/evaluation/TripleSource.html#line.146">getStatements</a>(org.openrdf.repository.RepositoryConnection&nbsp;conn,
                                                                                                                            org.openrdf.model.Resource&nbsp;subj,
                                                                                                                            org.openrdf.model.URI&nbsp;pred,
                                                                                                                            org.openrdf.model.Value&nbsp;obj,
                                                                                                                            org.openrdf.model.Resource...&nbsp;contexts)
                                                                                                                              throws org.openrdf.repository.RepositoryException,
                                                                                                                                     org.openrdf.query.MalformedQueryException,
                                                                                                                                     org.openrdf.query.QueryEvaluationException</pre>
<div class="block">Return the statements matching the given pattern as a <code>Statement</code> iteration.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>stmt</code> - the stmt expression to evaluate</dd><dd><code>conn</code> - the connection to the endpoint</dd>
<dt><span class="strong">Returns:</span></dt><dd>the resulting itereation</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>org.openrdf.repository.RepositoryException</code></dd>
<dd><code>org.openrdf.query.MalformedQueryException</code></dd>
<dd><code>org.openrdf.query.QueryEvaluationException</code></dd></dl>
</li>
</ul>
<a name="hasStatements(org.openrdf.query.algebra.StatementPattern, org.openrdf.repository.RepositoryConnection, org.openrdf.query.BindingSet)">
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<h4>hasStatements</h4>
<pre>boolean&nbsp;<a href="../../../../src-html/com/fluidops/fedx/evaluation/TripleSource.html#line.162">hasStatements</a>(org.openrdf.query.algebra.StatementPattern&nbsp;stmt,
                    org.openrdf.repository.RepositoryConnection&nbsp;conn,
                    org.openrdf.query.BindingSet&nbsp;bindings)
                      throws org.openrdf.repository.RepositoryException,
                             org.openrdf.query.MalformedQueryException,
                             org.openrdf.query.QueryEvaluationException</pre>
<div class="block">Check if the provided statement can return results.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>stmt</code> - </dd><dd><code>conn</code> - </dd><dd><code>bindings</code> - a binding set. in case no bindings are present, an <code>EmptyBindingSet</code> can be used (i.e. never null)</dd>
<dt><span class="strong">Returns:</span></dt><dd></dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>org.openrdf.repository.RepositoryException</code></dd>
<dd><code>org.openrdf.query.MalformedQueryException</code></dd>
<dd><code>org.openrdf.query.QueryEvaluationException</code></dd></dl>
</li>
</ul>
<a name="hasStatements(org.openrdf.repository.RepositoryConnection, org.openrdf.model.Resource, org.openrdf.model.URI, org.openrdf.model.Value, org.openrdf.model.Resource...)">
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<h4>hasStatements</h4>
<pre>boolean&nbsp;<a href="../../../../src-html/com/fluidops/fedx/evaluation/TripleSource.html#line.176">hasStatements</a>(org.openrdf.repository.RepositoryConnection&nbsp;conn,
                    org.openrdf.model.Resource&nbsp;subj,
                    org.openrdf.model.URI&nbsp;pred,
                    org.openrdf.model.Value&nbsp;obj,
                    org.openrdf.model.Resource...&nbsp;contexts)
                      throws org.openrdf.repository.RepositoryException</pre>
<div class="block">Check if the repository can return results for the given triple pattern represented
 by subj, pred and obj</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>conn</code> - </dd><dd><code>subj</code> - </dd><dd><code>pred</code> - </dd><dd><code>obj</code> - </dd><dd><code>contexts</code> - </dd>
<dt><span class="strong">Returns:</span></dt><dd></dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>org.openrdf.repository.RepositoryException</code></dd></dl>
</li>
</ul>
<a name="hasStatements(com.fluidops.fedx.algebra.ExclusiveGroup, org.openrdf.repository.RepositoryConnection, org.openrdf.query.BindingSet)">
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<ul class="blockList">
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<h4>hasStatements</h4>
<pre>boolean&nbsp;<a href="../../../../src-html/com/fluidops/fedx/evaluation/TripleSource.html#line.190">hasStatements</a>(<a href="../../../../com/fluidops/fedx/algebra/ExclusiveGroup.html" title="class in com.fluidops.fedx.algebra">ExclusiveGroup</a>&nbsp;group,
                    org.openrdf.repository.RepositoryConnection&nbsp;conn,
                    org.openrdf.query.BindingSet&nbsp;bindings)
                      throws org.openrdf.repository.RepositoryException,
                             org.openrdf.query.MalformedQueryException,
                             org.openrdf.query.QueryEvaluationException</pre>
<div class="block">Check if the repository can return results for the given <a href="../../../../com/fluidops/fedx/algebra/ExclusiveGroup.html" title="class in com.fluidops.fedx.algebra"><code>ExclusiveGroup</code></a>,
 i.e. a list of Statements</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>conn</code> - </dd><dd><code>subj</code> - </dd><dd><code>pred</code> - </dd><dd><code>obj</code> - </dd><dd><code>contexts</code> - </dd>
<dt><span class="strong">Returns:</span></dt><dd></dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>org.openrdf.repository.RepositoryException</code></dd>
<dd><code>org.openrdf.query.MalformedQueryException</code></dd>
<dd><code>org.openrdf.query.QueryEvaluationException</code></dd></dl>
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<h4>usePreparedQuery</h4>
<pre>boolean&nbsp;<a href="../../../../src-html/com/fluidops/fedx/evaluation/TripleSource.html#line.198">usePreparedQuery</a>()</pre>
<dl><dt><span class="strong">Returns:</span></dt><dd>true if a prepared query is to be used preferrably, false otherwise</dd></dl>
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