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<div class="sub-title"><span class="module-label-in-type">Module</span>&nbsp;<a href="../../../../../module-summary.html">org.apache.jena.arq</a></div>
<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.jena.sparql.core</a></div>
<h1 title="Interface DatasetGraph" class="title">Interface DatasetGraph</h1>
</div>
<section class="class-description" id="class-description">
<dl class="notes">
<dt>All Superinterfaces:</dt>
<dd><code>org.apache.jena.atlas.lib.Closeable</code>, <code><a href="Transactional.html" title="interface in org.apache.jena.sparql.core">Transactional</a></code></dd>
</dl>
<dl class="notes">
<dt>All Known Subinterfaces:</dt>
<dd><code><a href="../../system/buffering/DatasetGraphBuffering.html" title="interface in org.apache.jena.system.buffering">DatasetGraphBuffering</a></code>, <code><a href="DatasetGraphWrapperView.html" title="interface in org.apache.jena.sparql.core">DatasetGraphWrapperView</a></code></dd>
</dl>
<dl class="notes">
<dt>All Known Implementing Classes:</dt>
<dd><code><a href="../../system/buffering/BufferingDatasetGraph.html" title="class in org.apache.jena.system.buffering">BufferingDatasetGraph</a></code>, <code><a href="DatasetGraphBase.html" title="class in org.apache.jena.sparql.core">DatasetGraphBase</a></code>, <code><a href="DatasetGraphBaseFind.html" title="class in org.apache.jena.sparql.core">DatasetGraphBaseFind</a></code>, <code><a href="DatasetGraphCollection.html" title="class in org.apache.jena.sparql.core">DatasetGraphCollection</a></code>, <code><a href="DatasetGraphFilteredView.html" title="class in org.apache.jena.sparql.core">DatasetGraphFilteredView</a></code>, <code><a href="mem/DatasetGraphInMemory.html" title="class in org.apache.jena.sparql.core.mem">DatasetGraphInMemory</a></code>, <code><a href="DatasetGraphMap.html" title="class in org.apache.jena.sparql.core">DatasetGraphMap</a></code>, <code><a href="DatasetGraphMapLink.html" title="class in org.apache.jena.sparql.core">DatasetGraphMapLink</a></code>, <code><a href="DatasetGraphNull.html" title="class in org.apache.jena.sparql.core">DatasetGraphNull</a></code>, <code><a href="DatasetGraphOne.html" title="class in org.apache.jena.sparql.core">DatasetGraphOne</a></code>, <code><a href="DatasetGraphQuads.html" title="class in org.apache.jena.sparql.core">DatasetGraphQuads</a></code>, <code><a href="../../rdfs/DatasetGraphRDFS.html" title="class in org.apache.jena.rdfs">DatasetGraphRDFS</a></code>, <code><a href="DatasetGraphReadOnly.html" title="class in org.apache.jena.sparql.core">DatasetGraphReadOnly</a></code>, <code><a href="DatasetGraphSink.html" title="class in org.apache.jena.sparql.core">DatasetGraphSink</a></code>, <code><a href="DatasetGraphTriplesQuads.html" title="class in org.apache.jena.sparql.core">DatasetGraphTriplesQuads</a></code>, <code><a href="DatasetGraphWrapper.html" title="class in org.apache.jena.sparql.core">DatasetGraphWrapper</a></code>, <code><a href="DatasetGraphZero.html" title="class in org.apache.jena.sparql.core">DatasetGraphZero</a></code>, <code><a href="../util/DifferenceDatasetGraph.html" title="class in org.apache.jena.sparql.util">DifferenceDatasetGraph</a></code>, <code><a href="../util/DyadicDatasetGraph.html" title="class in org.apache.jena.sparql.util">DyadicDatasetGraph</a></code>, <code><a href="DynamicDatasets.DynamicDatasetGraph.html" title="class in org.apache.jena.sparql.core">DynamicDatasets.DynamicDatasetGraph</a></code>, <code><a href="../util/IntersectionDatasetGraph.html" title="class in org.apache.jena.sparql.util">IntersectionDatasetGraph</a></code>, <code><a href="../util/UnionDatasetGraph.html" title="class in org.apache.jena.sparql.util">UnionDatasetGraph</a></code></dd>
</dl>
<hr>
<div class="type-signature"><span class="modifiers">public interface </span><span class="element-name type-name-label">DatasetGraph</span><span class="extends-implements">
extends <a href="Transactional.html" title="interface in org.apache.jena.sparql.core">Transactional</a>, org.apache.jena.atlas.lib.Closeable</span></div>
<div class="block">DatasetGraph: The graph representation of an RDF Dataset. See <a href="../../query/Dataset.html" title="interface in org.apache.jena.query"><code>Dataset</code></a>
for the Model level of an RDF dataset.
<p>
Whether a dataset contains a graph if there are no triples
is not defined; see the specific implementation.</div>
</section>
<section class="summary">
<ul class="summary-list">
<!-- ======== NESTED CLASS SUMMARY ======== -->
<li>
<section class="nested-class-summary" id="nested-class-summary">
<h2>Nested Class Summary</h2>
<div class="inherited-list">
<h2 id="nested-classes-inherited-from-class-org.apache.jena.sparql.core.Transactional">Nested classes/interfaces inherited from interface&nbsp;org.apache.jena.sparql.core.<a href="Transactional.html" title="interface in org.apache.jena.sparql.core">Transactional</a></h2>
<code><a href="Transactional.Promote.html" title="enum class in org.apache.jena.sparql.core">Transactional.Promote</a></code></div>
</section>
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<section class="method-summary" id="method-summary">
<h2>Method Summary</h2>
<div id="method-summary-table">
<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab3" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab3', 3)" class="table-tab">Abstract Methods</button><button id="method-summary-table-tab5" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab5', 3)" class="table-tab">Default Methods</button></div>
<div id="method-summary-table.tabpanel" role="tabpanel">
<div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Method</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#add(org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node)" class="member-name-link">add</a><wbr>(org.apache.jena.graph.Node&nbsp;g,
org.apache.jena.graph.Node&nbsp;s,
org.apache.jena.graph.Node&nbsp;p,
org.apache.jena.graph.Node&nbsp;o)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Add a quad</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#add(org.apache.jena.sparql.core.Quad)" class="member-name-link">add</a><wbr>(<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&nbsp;quad)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Add a quad</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code>default void</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code><a href="#addAll(org.apache.jena.sparql.core.DatasetGraph)" class="member-name-link">addAll</a><wbr>(<a href="DatasetGraph.html" title="interface in org.apache.jena.sparql.core">DatasetGraph</a>&nbsp;src)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5">
<div class="block">Add the <code>src</code> DatasetGraph to this one.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#addGraph(org.apache.jena.graph.Node,org.apache.jena.graph.Graph)" class="member-name-link">addGraph</a><wbr>(org.apache.jena.graph.Node&nbsp;graphName,
org.apache.jena.graph.Graph&nbsp;graph)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Add the given graph to the dataset.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#clear()" class="member-name-link">clear</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Remove everything - remove all named graphs, clear the default graph</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#close()" class="member-name-link">close</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Close the dataset</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>boolean</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#contains(org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node)" class="member-name-link">contains</a><wbr>(org.apache.jena.graph.Node&nbsp;g,
org.apache.jena.graph.Node&nbsp;s,
org.apache.jena.graph.Node&nbsp;p,
org.apache.jena.graph.Node&nbsp;o)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Test whether the dataset (including default graph) contains a quad - may include wildcards, Node.ANY or null</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>boolean</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#contains(org.apache.jena.sparql.core.Quad)" class="member-name-link">contains</a><wbr>(<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&nbsp;quad)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Test whether the dataset contains a quad (including default graph)- may include wildcards, Node.ANY or null</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>boolean</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#containsGraph(org.apache.jena.graph.Node)" class="member-name-link">containsGraph</a><wbr>(org.apache.jena.graph.Node&nbsp;graphNode)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Does the DatasetGraph contain a specific named graph?
Whether a dataset contains a graph if there are no triples is
not defined - see the specific implementation.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#delete(org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node)" class="member-name-link">delete</a><wbr>(org.apache.jena.graph.Node&nbsp;g,
org.apache.jena.graph.Node&nbsp;s,
org.apache.jena.graph.Node&nbsp;p,
org.apache.jena.graph.Node&nbsp;o)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Delete a quad</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#delete(org.apache.jena.sparql.core.Quad)" class="member-name-link">delete</a><wbr>(<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&nbsp;quad)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Delete a quad</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#deleteAny(org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node)" class="member-name-link">deleteAny</a><wbr>(org.apache.jena.graph.Node&nbsp;g,
org.apache.jena.graph.Node&nbsp;s,
org.apache.jena.graph.Node&nbsp;p,
org.apache.jena.graph.Node&nbsp;o)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Delete any quads matching the pattern</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code>default <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a>&lt;<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&gt;</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code><a href="#find()" class="member-name-link">find</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5">
<div class="block">Iterate over all quads in the dataset graph</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a>&lt;<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&gt;</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#find(org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node)" class="member-name-link">find</a><wbr>(org.apache.jena.graph.Node&nbsp;g,
org.apache.jena.graph.Node&nbsp;s,
org.apache.jena.graph.Node&nbsp;p,
org.apache.jena.graph.Node&nbsp;o)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Find matching quads in the dataset (including default graph) - may include wildcards, Node.ANY or null</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a>&lt;<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&gt;</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#find(org.apache.jena.sparql.core.Quad)" class="member-name-link">find</a><wbr>(<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&nbsp;quad)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Find matching quads in the dataset - may include wildcards, Node.ANY or null</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a>&lt;<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&gt;</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#findNG(org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node)" class="member-name-link">findNG</a><wbr>(org.apache.jena.graph.Node&nbsp;g,
org.apache.jena.graph.Node&nbsp;s,
org.apache.jena.graph.Node&nbsp;p,
org.apache.jena.graph.Node&nbsp;o)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Find matching quads in the dataset in named graphs only - may include wildcards, Node.ANY or null</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="../util/Context.html" title="class in org.apache.jena.sparql.util">Context</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getContext()" class="member-name-link">getContext</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Get the context associated with this object - may be null</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>org.apache.jena.graph.Graph</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getDefaultGraph()" class="member-name-link">getDefaultGraph</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Get the default graph as a Jena Graph</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>org.apache.jena.graph.Graph</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getGraph(org.apache.jena.graph.Node)" class="member-name-link">getGraph</a><wbr>(org.apache.jena.graph.Node&nbsp;graphNode)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Get the graph named by graphNode : returns null when there is no such graph.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>org.apache.jena.shared.Lock</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getLock()" class="member-name-link">getLock</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Return a lock for the dataset to help with concurrency control</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>org.apache.jena.graph.Graph</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getUnionGraph()" class="member-name-link">getUnionGraph</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Return a <code>Graph</code> that is the union of all named graphs in this dataset.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>boolean</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#isEmpty()" class="member-name-link">isEmpty</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Test whether the dataset is empty</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a>&lt;org.apache.jena.graph.Node&gt;</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#listGraphNodes()" class="member-name-link">listGraphNodes</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Iterate over all names of named graphs</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="../../riot/system/PrefixMap.html" title="interface in org.apache.jena.riot.system">PrefixMap</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#prefixes()" class="member-name-link">prefixes</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Prefixes for this DatasetGraph</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#removeGraph(org.apache.jena.graph.Node)" class="member-name-link">removeGraph</a><wbr>(org.apache.jena.graph.Node&nbsp;graphName)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Remove all data associated with the named graph.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>long</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#size()" class="member-name-link">size</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Get the size (number of named graphs) - may be -1 for unknown</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code>default <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/stream/Stream.html" title="class or interface in java.util.stream" class="external-link">Stream</a>&lt;<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&gt;</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code><a href="#stream()" class="member-name-link">stream</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5">
<div class="block">Returns a <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/stream/Stream.html" title="class or interface in java.util.stream" class="external-link"><code>Stream</code></a> of <a href="Quad.html" title="class in org.apache.jena.sparql.core"><code>Quads</code></a> in this dataset.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code>default <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/stream/Stream.html" title="class or interface in java.util.stream" class="external-link">Stream</a>&lt;<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&gt;</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code><a href="#stream(org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node)" class="member-name-link">stream</a><wbr>(org.apache.jena.graph.Node&nbsp;g,
org.apache.jena.graph.Node&nbsp;s,
org.apache.jena.graph.Node&nbsp;p,
org.apache.jena.graph.Node&nbsp;o)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5">
<div class="block">Returns a <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/stream/Stream.html" title="class or interface in java.util.stream" class="external-link"><code>Stream</code></a> of <a href="Quad.html" title="class in org.apache.jena.sparql.core"><code>Quads</code></a> matching a pattern.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code>default boolean</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code><a href="#supportsTransactionAbort()" class="member-name-link">supportsTransactionAbort</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5">
<div class="block">Declare whether <a href="Transactional.html#abort()"><code>Transactional.abort()</code></a> is supported.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>boolean</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#supportsTransactions()" class="member-name-link">supportsTransactions</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">A <code>DatasetGraph</code> supports transactions if it provides <a href="Transactional.html#begin()"><code>Transactional.begin()</code></a>/
<a href="Transactional.html#commit()"><code>Transactional.commit()</code></a>/<a href="Transactional.html#end()"><code>Transactional.end()</code></a>.</div>
</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.apache.jena.sparql.core.Transactional">Methods inherited from interface&nbsp;org.apache.jena.sparql.core.<a href="Transactional.html" title="interface in org.apache.jena.sparql.core">Transactional</a></h3>
<code><a href="Transactional.html#abort()">abort</a>, <a href="Transactional.html#begin()">begin</a>, <a href="Transactional.html#begin(org.apache.jena.query.ReadWrite)">begin</a>, <a href="Transactional.html#begin(org.apache.jena.query.TxnType)">begin</a>, <a href="Transactional.html#calc(org.apache.jena.query.TxnType,java.util.function.Supplier)">calc</a>, <a href="Transactional.html#calculate(java.util.function.Supplier)">calculate</a>, <a href="Transactional.html#calculateRead(java.util.function.Supplier)">calculateRead</a>, <a href="Transactional.html#calculateWrite(java.util.function.Supplier)">calculateWrite</a>, <a href="Transactional.html#commit()">commit</a>, <a href="Transactional.html#end()">end</a>, <a href="Transactional.html#exec(org.apache.jena.query.TxnType,java.lang.Runnable)">exec</a>, <a href="Transactional.html#execute(java.lang.Runnable)">execute</a>, <a href="Transactional.html#executeRead(java.lang.Runnable)">executeRead</a>, <a href="Transactional.html#executeWrite(java.lang.Runnable)">executeWrite</a>, <a href="Transactional.html#isInTransaction()">isInTransaction</a>, <a href="Transactional.html#promote()">promote</a>, <a href="Transactional.html#promote(org.apache.jena.sparql.core.Transactional.Promote)">promote</a>, <a href="Transactional.html#transactionMode()">transactionMode</a>, <a href="Transactional.html#transactionType()">transactionType</a></code></div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method-detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="getDefaultGraph()">
<h3>getDefaultGraph</h3>
<div class="member-signature"><span class="return-type">org.apache.jena.graph.Graph</span>&nbsp;<span class="element-name">getDefaultGraph</span>()</div>
<div class="block">Get the default graph as a Jena Graph</div>
</section>
</li>
<li>
<section class="detail" id="getGraph(org.apache.jena.graph.Node)">
<h3>getGraph</h3>
<div class="member-signature"><span class="return-type">org.apache.jena.graph.Graph</span>&nbsp;<span class="element-name">getGraph</span><wbr><span class="parameters">(org.apache.jena.graph.Node&nbsp;graphNode)</span></div>
<div class="block">Get the graph named by graphNode : returns null when there is no such graph.
NB Whether a dataset contains a graph if there are no triples is not defined - see the specific implementation.
Some datasets are "open" - they have all graphs even if no triples.</div>
</section>
</li>
<li>
<section class="detail" id="getUnionGraph()">
<h3>getUnionGraph</h3>
<div class="member-signature"><span class="return-type">org.apache.jena.graph.Graph</span>&nbsp;<span class="element-name">getUnionGraph</span>()</div>
<div class="block">Return a <code>Graph</code> that is the union of all named graphs in this dataset. This
union graph is read-only (its prefix mapping in the current JVM may be changed but
that may not persist).</div>
</section>
</li>
<li>
<section class="detail" id="containsGraph(org.apache.jena.graph.Node)">
<h3>containsGraph</h3>
<div class="member-signature"><span class="return-type">boolean</span>&nbsp;<span class="element-name">containsGraph</span><wbr><span class="parameters">(org.apache.jena.graph.Node&nbsp;graphNode)</span></div>
<div class="block">Does the DatasetGraph contain a specific named graph?
Whether a dataset contains a graph if there are no triples is
not defined - see the specific implementation. Some datasets are "open" -
they have all graphs even if no triples and this returns true always.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>graphNode</code> - </dd>
<dt>Returns:</dt>
<dd>boolean</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="addGraph(org.apache.jena.graph.Node,org.apache.jena.graph.Graph)">
<h3>addGraph</h3>
<div class="member-signature"><span class="return-type">void</span>&nbsp;<span class="element-name">addGraph</span><wbr><span class="parameters">(org.apache.jena.graph.Node&nbsp;graphName,
org.apache.jena.graph.Graph&nbsp;graph)</span></div>
<div class="block">Add the given graph to the dataset.
<em>Replaces</em> any existing data for the named graph; to add data,
get the graph and add triples to it, or add quads to the dataset.
Do not assume that the same Java object is returned by <a href="#getGraph(org.apache.jena.graph.Node)"><code>getGraph(org.apache.jena.graph.Node)</code></a></div>
</section>
</li>
<li>
<section class="detail" id="removeGraph(org.apache.jena.graph.Node)">
<h3>removeGraph</h3>
<div class="member-signature"><span class="return-type">void</span>&nbsp;<span class="element-name">removeGraph</span><wbr><span class="parameters">(org.apache.jena.graph.Node&nbsp;graphName)</span></div>
<div class="block">Remove all data associated with the named graph.
This will include prefixes associated with the graph.</div>
</section>
</li>
<li>
<section class="detail" id="listGraphNodes()">
<h3>listGraphNodes</h3>
<div class="member-signature"><span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a>&lt;org.apache.jena.graph.Node&gt;</span>&nbsp;<span class="element-name">listGraphNodes</span>()</div>
<div class="block">Iterate over all names of named graphs</div>
</section>
</li>
<li>
<section class="detail" id="add(org.apache.jena.sparql.core.Quad)">
<h3>add</h3>
<div class="member-signature"><span class="return-type">void</span>&nbsp;<span class="element-name">add</span><wbr><span class="parameters">(<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&nbsp;quad)</span></div>
<div class="block">Add a quad</div>
</section>
</li>
<li>
<section class="detail" id="delete(org.apache.jena.sparql.core.Quad)">
<h3>delete</h3>
<div class="member-signature"><span class="return-type">void</span>&nbsp;<span class="element-name">delete</span><wbr><span class="parameters">(<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&nbsp;quad)</span></div>
<div class="block">Delete a quad</div>
</section>
</li>
<li>
<section class="detail" id="add(org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node)">
<h3>add</h3>
<div class="member-signature"><span class="return-type">void</span>&nbsp;<span class="element-name">add</span><wbr><span class="parameters">(org.apache.jena.graph.Node&nbsp;g,
org.apache.jena.graph.Node&nbsp;s,
org.apache.jena.graph.Node&nbsp;p,
org.apache.jena.graph.Node&nbsp;o)</span></div>
<div class="block">Add a quad</div>
</section>
</li>
<li>
<section class="detail" id="addAll(org.apache.jena.sparql.core.DatasetGraph)">
<h3>addAll</h3>
<div class="member-signature"><span class="modifiers">default</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">addAll</span><wbr><span class="parameters">(<a href="DatasetGraph.html" title="interface in org.apache.jena.sparql.core">DatasetGraph</a>&nbsp;src)</span></div>
<div class="block">Add the <code>src</code> DatasetGraph to this one.</div>
</section>
</li>
<li>
<section class="detail" id="delete(org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node)">
<h3>delete</h3>
<div class="member-signature"><span class="return-type">void</span>&nbsp;<span class="element-name">delete</span><wbr><span class="parameters">(org.apache.jena.graph.Node&nbsp;g,
org.apache.jena.graph.Node&nbsp;s,
org.apache.jena.graph.Node&nbsp;p,
org.apache.jena.graph.Node&nbsp;o)</span></div>
<div class="block">Delete a quad</div>
</section>
</li>
<li>
<section class="detail" id="deleteAny(org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node)">
<h3>deleteAny</h3>
<div class="member-signature"><span class="return-type">void</span>&nbsp;<span class="element-name">deleteAny</span><wbr><span class="parameters">(org.apache.jena.graph.Node&nbsp;g,
org.apache.jena.graph.Node&nbsp;s,
org.apache.jena.graph.Node&nbsp;p,
org.apache.jena.graph.Node&nbsp;o)</span></div>
<div class="block">Delete any quads matching the pattern</div>
</section>
</li>
<li>
<section class="detail" id="find()">
<h3>find</h3>
<div class="member-signature"><span class="modifiers">default</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a>&lt;<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&gt;</span>&nbsp;<span class="element-name">find</span>()</div>
<div class="block">Iterate over all quads in the dataset graph</div>
</section>
</li>
<li>
<section class="detail" id="find(org.apache.jena.sparql.core.Quad)">
<h3>find</h3>
<div class="member-signature"><span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a>&lt;<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&gt;</span>&nbsp;<span class="element-name">find</span><wbr><span class="parameters">(<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&nbsp;quad)</span></div>
<div class="block">Find matching quads in the dataset - may include wildcards, Node.ANY or null</div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list">
<li><code>Graph.find(Triple)</code></li>
</ul>
</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="find(org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node)">
<h3>find</h3>
<div class="member-signature"><span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a>&lt;<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&gt;</span>&nbsp;<span class="element-name">find</span><wbr><span class="parameters">(org.apache.jena.graph.Node&nbsp;g,
org.apache.jena.graph.Node&nbsp;s,
org.apache.jena.graph.Node&nbsp;p,
org.apache.jena.graph.Node&nbsp;o)</span></div>
<div class="block">Find matching quads in the dataset (including default graph) - may include wildcards, Node.ANY or null</div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list-long">
<li><code>Graph.find(Node,Node,Node)</code></li>
</ul>
</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="findNG(org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node)">
<h3>findNG</h3>
<div class="member-signature"><span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a>&lt;<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&gt;</span>&nbsp;<span class="element-name">findNG</span><wbr><span class="parameters">(org.apache.jena.graph.Node&nbsp;g,
org.apache.jena.graph.Node&nbsp;s,
org.apache.jena.graph.Node&nbsp;p,
org.apache.jena.graph.Node&nbsp;o)</span></div>
<div class="block">Find matching quads in the dataset in named graphs only - may include wildcards, Node.ANY or null</div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list-long">
<li><code>Graph.find(Node,Node,Node)</code></li>
</ul>
</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="stream(org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node)">
<h3>stream</h3>
<div class="member-signature"><span class="modifiers">default</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/stream/Stream.html" title="class or interface in java.util.stream" class="external-link">Stream</a>&lt;<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&gt;</span>&nbsp;<span class="element-name">stream</span><wbr><span class="parameters">(org.apache.jena.graph.Node&nbsp;g,
org.apache.jena.graph.Node&nbsp;s,
org.apache.jena.graph.Node&nbsp;p,
org.apache.jena.graph.Node&nbsp;o)</span></div>
<div class="block">Returns a <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/stream/Stream.html" title="class or interface in java.util.stream" class="external-link"><code>Stream</code></a> of <a href="Quad.html" title="class in org.apache.jena.sparql.core"><code>Quads</code></a> matching a pattern.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>a stream of quads in this dataset matching the pattern.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="stream()">
<h3>stream</h3>
<div class="member-signature"><span class="modifiers">default</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/stream/Stream.html" title="class or interface in java.util.stream" class="external-link">Stream</a>&lt;<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&gt;</span>&nbsp;<span class="element-name">stream</span>()</div>
<div class="block">Returns a <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/stream/Stream.html" title="class or interface in java.util.stream" class="external-link"><code>Stream</code></a> of <a href="Quad.html" title="class in org.apache.jena.sparql.core"><code>Quads</code></a> in this dataset.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>a stream of quads in this dataset.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="contains(org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node,org.apache.jena.graph.Node)">
<h3>contains</h3>
<div class="member-signature"><span class="return-type">boolean</span>&nbsp;<span class="element-name">contains</span><wbr><span class="parameters">(org.apache.jena.graph.Node&nbsp;g,
org.apache.jena.graph.Node&nbsp;s,
org.apache.jena.graph.Node&nbsp;p,
org.apache.jena.graph.Node&nbsp;o)</span></div>
<div class="block">Test whether the dataset (including default graph) contains a quad - may include wildcards, Node.ANY or null</div>
</section>
</li>
<li>
<section class="detail" id="contains(org.apache.jena.sparql.core.Quad)">
<h3>contains</h3>
<div class="member-signature"><span class="return-type">boolean</span>&nbsp;<span class="element-name">contains</span><wbr><span class="parameters">(<a href="Quad.html" title="class in org.apache.jena.sparql.core">Quad</a>&nbsp;quad)</span></div>
<div class="block">Test whether the dataset contains a quad (including default graph)- may include wildcards, Node.ANY or null</div>
</section>
</li>
<li>
<section class="detail" id="clear()">
<h3>clear</h3>
<div class="member-signature"><span class="return-type">void</span>&nbsp;<span class="element-name">clear</span>()</div>
<div class="block">Remove everything - remove all named graphs, clear the default graph</div>
</section>
</li>
<li>
<section class="detail" id="isEmpty()">
<h3>isEmpty</h3>
<div class="member-signature"><span class="return-type">boolean</span>&nbsp;<span class="element-name">isEmpty</span>()</div>
<div class="block">Test whether the dataset is empty</div>
</section>
</li>
<li>
<section class="detail" id="getLock()">
<h3>getLock</h3>
<div class="member-signature"><span class="return-type">org.apache.jena.shared.Lock</span>&nbsp;<span class="element-name">getLock</span>()</div>
<div class="block">Return a lock for the dataset to help with concurrency control</div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list">
<li><code>Lock</code></li>
</ul>
</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getContext()">
<h3>getContext</h3>
<div class="member-signature"><span class="return-type"><a href="../util/Context.html" title="class in org.apache.jena.sparql.util">Context</a></span>&nbsp;<span class="element-name">getContext</span>()</div>
<div class="block">Get the context associated with this object - may be null</div>
</section>
</li>
<li>
<section class="detail" id="size()">
<h3>size</h3>
<div class="member-signature"><span class="return-type">long</span>&nbsp;<span class="element-name">size</span>()</div>
<div class="block">Get the size (number of named graphs) - may be -1 for unknown</div>
</section>
</li>
<li>
<section class="detail" id="close()">
<h3>close</h3>
<div class="member-signature"><span class="return-type">void</span>&nbsp;<span class="element-name">close</span>()</div>
<div class="block">Close the dataset</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code>close</code>&nbsp;in interface&nbsp;<code>org.apache.jena.atlas.lib.Closeable</code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="prefixes()">
<h3>prefixes</h3>
<div class="member-signature"><span class="return-type"><a href="../../riot/system/PrefixMap.html" title="interface in org.apache.jena.riot.system">PrefixMap</a></span>&nbsp;<span class="element-name">prefixes</span>()</div>
<div class="block">Prefixes for this DatasetGraph</div>
</section>
</li>
<li>
<section class="detail" id="supportsTransactions()">
<h3>supportsTransactions</h3>
<div class="member-signature"><span class="return-type">boolean</span>&nbsp;<span class="element-name">supportsTransactions</span>()</div>
<div class="block">A <code>DatasetGraph</code> supports transactions if it provides <a href="Transactional.html#begin()"><code>Transactional.begin()</code></a>/
<a href="Transactional.html#commit()"><code>Transactional.commit()</code></a>/<a href="Transactional.html#end()"><code>Transactional.end()</code></a>. The core storage <code>DatasetGraph</code>s
provide fully serialized transactions. A <code>DatasetGraph</code> that provides
functionality across independent systems can not provide such strong guarantees.
For example, it may use MRSW locking and some isolation control.
Specifically, it would not necessarily provide <a href="Transactional.html#abort()"><code>Transactional.abort()</code></a>.
<p>
See <a href="#supportsTransactionAbort()"><code>supportsTransactionAbort()</code></a> for <a href="Transactional.html#abort()"><code>Transactional.abort()</code></a>.
In addition, check details of a specific implementation.</div>
</section>
</li>
<li>
<section class="detail" id="supportsTransactionAbort()">
<h3>supportsTransactionAbort</h3>
<div class="member-signature"><span class="modifiers">default</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">supportsTransactionAbort</span>()</div>
<div class="block">Declare whether <a href="Transactional.html#abort()"><code>Transactional.abort()</code></a> is supported.
This goes along with clearing up after exceptions inside application transaction code.</div>
</section>
</li>
</ul>
</section>
</li>
</ul>
</section>
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