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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.iceberg</a></div>
<h2 title="Interface Snapshot" class="title">Interface Snapshot</h2>
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<dt>All Superinterfaces:</dt>
<dd><code>java.io.Serializable</code></dd>
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<pre>public interface <span class="typeNameLabel">Snapshot</span>
extends java.io.Serializable</pre>
<div class="block">A snapshot of the data in a table at a point in time.
<p>A snapshot consist of one or more file manifests, and the complete table contents is the union
of all the data files in those manifests.
<p>Snapshots are created by table operations, like <a href="AppendFiles.html" title="interface in org.apache.iceberg"><code>AppendFiles</code></a> and <a href="RewriteFiles.html" title="interface in org.apache.iceberg"><code>RewriteFiles</code></a>.</div>
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<h3>Method Summary</h3>
<table class="memberSummary">
<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t5" class="tableTab"><span><a href="javascript:show(16);">Default Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>java.lang.Iterable&lt;<a href="DataFile.html" title="interface in org.apache.iceberg">DataFile</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#addedDataFiles(org.apache.iceberg.io.FileIO)">addedDataFiles</a></span>&#8203;(<a href="io/FileIO.html" title="interface in org.apache.iceberg.io">FileIO</a>&nbsp;io)</code></th>
<td class="colLast">
<div class="block">Return all data files added to the table in this snapshot.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>default java.lang.Iterable&lt;<a href="DeleteFile.html" title="interface in org.apache.iceberg">DeleteFile</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#addedDeleteFiles(org.apache.iceberg.io.FileIO)">addedDeleteFiles</a></span>&#8203;(<a href="io/FileIO.html" title="interface in org.apache.iceberg.io">FileIO</a>&nbsp;io)</code></th>
<td class="colLast">
<div class="block">Return all delete files added to the table in this snapshot.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>java.util.List&lt;<a href="ManifestFile.html" title="interface in org.apache.iceberg">ManifestFile</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#allManifests(org.apache.iceberg.io.FileIO)">allManifests</a></span>&#8203;(<a href="io/FileIO.html" title="interface in org.apache.iceberg.io">FileIO</a>&nbsp;io)</code></th>
<td class="colLast">
<div class="block">Return all <a href="ManifestFile.html" title="interface in org.apache.iceberg"><code>ManifestFile</code></a> instances for either data or delete manifests in this snapshot.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>java.util.List&lt;<a href="ManifestFile.html" title="interface in org.apache.iceberg">ManifestFile</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#dataManifests(org.apache.iceberg.io.FileIO)">dataManifests</a></span>&#8203;(<a href="io/FileIO.html" title="interface in org.apache.iceberg.io">FileIO</a>&nbsp;io)</code></th>
<td class="colLast">
<div class="block">Return a <a href="ManifestFile.html" title="interface in org.apache.iceberg"><code>ManifestFile</code></a> for each data manifest in this snapshot.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>java.util.List&lt;<a href="ManifestFile.html" title="interface in org.apache.iceberg">ManifestFile</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#deleteManifests(org.apache.iceberg.io.FileIO)">deleteManifests</a></span>&#8203;(<a href="io/FileIO.html" title="interface in org.apache.iceberg.io">FileIO</a>&nbsp;io)</code></th>
<td class="colLast">
<div class="block">Return a <a href="ManifestFile.html" title="interface in org.apache.iceberg"><code>ManifestFile</code></a> for each delete manifest in this snapshot.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#manifestListLocation()">manifestListLocation</a></span>()</code></th>
<td class="colLast">
<div class="block">Return the location of this snapshot's manifest list, or null if it is not separate.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#operation()">operation</a></span>()</code></th>
<td class="colLast">
<div class="block">Return the name of the <a href="DataOperations.html" title="class in org.apache.iceberg"><code>data operation</code></a> that produced this snapshot.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>java.lang.Long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#parentId()">parentId</a></span>()</code></th>
<td class="colLast">
<div class="block">Return this snapshot's parent ID or null.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>java.lang.Iterable&lt;<a href="DataFile.html" title="interface in org.apache.iceberg">DataFile</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#removedDataFiles(org.apache.iceberg.io.FileIO)">removedDataFiles</a></span>&#8203;(<a href="io/FileIO.html" title="interface in org.apache.iceberg.io">FileIO</a>&nbsp;io)</code></th>
<td class="colLast">
<div class="block">Return all data files removed from the table in this snapshot.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>default java.lang.Iterable&lt;<a href="DeleteFile.html" title="interface in org.apache.iceberg">DeleteFile</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#removedDeleteFiles(org.apache.iceberg.io.FileIO)">removedDeleteFiles</a></span>&#8203;(<a href="io/FileIO.html" title="interface in org.apache.iceberg.io">FileIO</a>&nbsp;io)</code></th>
<td class="colLast">
<div class="block">Return all delete files removed from the table in this snapshot.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>default java.lang.Integer</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#schemaId()">schemaId</a></span>()</code></th>
<td class="colLast">
<div class="block">Return the id of the schema used when this snapshot was created, or null if this information is
not available.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#sequenceNumber()">sequenceNumber</a></span>()</code></th>
<td class="colLast">
<div class="block">Return this snapshot's sequence number.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#snapshotId()">snapshotId</a></span>()</code></th>
<td class="colLast">
<div class="block">Return this snapshot's ID.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>java.util.Map&lt;java.lang.String,&#8203;java.lang.String&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#summary()">summary</a></span>()</code></th>
<td class="colLast">
<div class="block">Return a string map of summary data for the operation that produced this snapshot.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#timestampMillis()">timestampMillis</a></span>()</code></th>
<td class="colLast">
<div class="block">Return this snapshot's timestamp.</div>
</td>
</tr>
</table>
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<h3>Method Detail</h3>
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<h4>sequenceNumber</h4>
<pre class="methodSignature">long&nbsp;sequenceNumber()</pre>
<div class="block">Return this snapshot's sequence number.
<p>Sequence numbers are assigned when a snapshot is committed.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a long sequence number</dd>
</dl>
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<h4>snapshotId</h4>
<pre class="methodSignature">long&nbsp;snapshotId()</pre>
<div class="block">Return this snapshot's ID.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a long ID</dd>
</dl>
</li>
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<h4>parentId</h4>
<pre class="methodSignature">java.lang.Long&nbsp;parentId()</pre>
<div class="block">Return this snapshot's parent ID or null.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a long ID for this snapshot's parent, or null if it has no parent</dd>
</dl>
</li>
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<a id="timestampMillis()">
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<h4>timestampMillis</h4>
<pre class="methodSignature">long&nbsp;timestampMillis()</pre>
<div class="block">Return this snapshot's timestamp.
<p>This timestamp is the same as those produced by <code>System.currentTimeMillis()</code>.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a long timestamp in milliseconds</dd>
</dl>
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</ul>
<a id="allManifests(org.apache.iceberg.io.FileIO)">
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<h4>allManifests</h4>
<pre class="methodSignature">java.util.List&lt;<a href="ManifestFile.html" title="interface in org.apache.iceberg">ManifestFile</a>&gt;&nbsp;allManifests&#8203;(<a href="io/FileIO.html" title="interface in org.apache.iceberg.io">FileIO</a>&nbsp;io)</pre>
<div class="block">Return all <a href="ManifestFile.html" title="interface in org.apache.iceberg"><code>ManifestFile</code></a> instances for either data or delete manifests in this snapshot.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>io</code> - a <a href="io/FileIO.html" title="interface in org.apache.iceberg.io"><code>FileIO</code></a> instance used for reading files from storage</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a list of ManifestFile</dd>
</dl>
</li>
</ul>
<a id="dataManifests(org.apache.iceberg.io.FileIO)">
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<h4>dataManifests</h4>
<pre class="methodSignature">java.util.List&lt;<a href="ManifestFile.html" title="interface in org.apache.iceberg">ManifestFile</a>&gt;&nbsp;dataManifests&#8203;(<a href="io/FileIO.html" title="interface in org.apache.iceberg.io">FileIO</a>&nbsp;io)</pre>
<div class="block">Return a <a href="ManifestFile.html" title="interface in org.apache.iceberg"><code>ManifestFile</code></a> for each data manifest in this snapshot.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>io</code> - a <a href="io/FileIO.html" title="interface in org.apache.iceberg.io"><code>FileIO</code></a> instance used for reading files from storage</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a list of ManifestFile</dd>
</dl>
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<a id="deleteManifests(org.apache.iceberg.io.FileIO)">
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<h4>deleteManifests</h4>
<pre class="methodSignature">java.util.List&lt;<a href="ManifestFile.html" title="interface in org.apache.iceberg">ManifestFile</a>&gt;&nbsp;deleteManifests&#8203;(<a href="io/FileIO.html" title="interface in org.apache.iceberg.io">FileIO</a>&nbsp;io)</pre>
<div class="block">Return a <a href="ManifestFile.html" title="interface in org.apache.iceberg"><code>ManifestFile</code></a> for each delete manifest in this snapshot.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>io</code> - a <a href="io/FileIO.html" title="interface in org.apache.iceberg.io"><code>FileIO</code></a> instance used for reading files from storage</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a list of ManifestFile</dd>
</dl>
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<h4>operation</h4>
<pre class="methodSignature">java.lang.String&nbsp;operation()</pre>
<div class="block">Return the name of the <a href="DataOperations.html" title="class in org.apache.iceberg"><code>data operation</code></a> that produced this snapshot.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the operation that produced this snapshot, or null if the operation is unknown</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="DataOperations.html" title="class in org.apache.iceberg"><code>DataOperations</code></a></dd>
</dl>
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<h4>summary</h4>
<pre class="methodSignature">java.util.Map&lt;java.lang.String,&#8203;java.lang.String&gt;&nbsp;summary()</pre>
<div class="block">Return a string map of summary data for the operation that produced this snapshot.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a string map of summary data.</dd>
</dl>
</li>
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<a id="addedDataFiles(org.apache.iceberg.io.FileIO)">
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<h4>addedDataFiles</h4>
<pre class="methodSignature">java.lang.Iterable&lt;<a href="DataFile.html" title="interface in org.apache.iceberg">DataFile</a>&gt;&nbsp;addedDataFiles&#8203;(<a href="io/FileIO.html" title="interface in org.apache.iceberg.io">FileIO</a>&nbsp;io)</pre>
<div class="block">Return all data files added to the table in this snapshot.
<p>The files returned include the following columns: file_path, file_format, partition,
record_count, and file_size_in_bytes. Data and file sequence number are populated. Other
columns will be null.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>io</code> - a <a href="io/FileIO.html" title="interface in org.apache.iceberg.io"><code>FileIO</code></a> instance used for reading files from storage</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>all data files added to the table in this snapshot.</dd>
</dl>
</li>
</ul>
<a id="removedDataFiles(org.apache.iceberg.io.FileIO)">
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<h4>removedDataFiles</h4>
<pre class="methodSignature">java.lang.Iterable&lt;<a href="DataFile.html" title="interface in org.apache.iceberg">DataFile</a>&gt;&nbsp;removedDataFiles&#8203;(<a href="io/FileIO.html" title="interface in org.apache.iceberg.io">FileIO</a>&nbsp;io)</pre>
<div class="block">Return all data files removed from the table in this snapshot.
<p>The files returned include the following columns: file_path, file_format, partition,
record_count, and file_size_in_bytes. Data and file sequence number are populated. Other
columns will be null.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>io</code> - a <a href="io/FileIO.html" title="interface in org.apache.iceberg.io"><code>FileIO</code></a> instance used for reading files from storage</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>all data files removed from the table in this snapshot.</dd>
</dl>
</li>
</ul>
<a id="addedDeleteFiles(org.apache.iceberg.io.FileIO)">
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<h4>addedDeleteFiles</h4>
<pre class="methodSignature">default&nbsp;java.lang.Iterable&lt;<a href="DeleteFile.html" title="interface in org.apache.iceberg">DeleteFile</a>&gt;&nbsp;addedDeleteFiles&#8203;(<a href="io/FileIO.html" title="interface in org.apache.iceberg.io">FileIO</a>&nbsp;io)</pre>
<div class="block">Return all delete files added to the table in this snapshot.
<p>The files returned include the following columns: file_path, file_format, partition,
record_count, and file_size_in_bytes. Other columns will be null.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>io</code> - a <a href="io/FileIO.html" title="interface in org.apache.iceberg.io"><code>FileIO</code></a> instance used for reading files from storage</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>all delete files added to the table in this snapshot</dd>
</dl>
</li>
</ul>
<a id="removedDeleteFiles(org.apache.iceberg.io.FileIO)">
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<h4>removedDeleteFiles</h4>
<pre class="methodSignature">default&nbsp;java.lang.Iterable&lt;<a href="DeleteFile.html" title="interface in org.apache.iceberg">DeleteFile</a>&gt;&nbsp;removedDeleteFiles&#8203;(<a href="io/FileIO.html" title="interface in org.apache.iceberg.io">FileIO</a>&nbsp;io)</pre>
<div class="block">Return all delete files removed from the table in this snapshot.
<p>The files returned include the following columns: file_path, file_format, partition,
record_count, and file_size_in_bytes. Other columns will be null.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>io</code> - a <a href="io/FileIO.html" title="interface in org.apache.iceberg.io"><code>FileIO</code></a> instance used for reading files from storage</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>all delete files removed from the table in this snapshot</dd>
</dl>
</li>
</ul>
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<h4>manifestListLocation</h4>
<pre class="methodSignature">java.lang.String&nbsp;manifestListLocation()</pre>
<div class="block">Return the location of this snapshot's manifest list, or null if it is not separate.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the location of the manifest list for this Snapshot</dd>
</dl>
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<a id="schemaId()">
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<h4>schemaId</h4>
<pre class="methodSignature">default&nbsp;java.lang.Integer&nbsp;schemaId()</pre>
<div class="block">Return the id of the schema used when this snapshot was created, or null if this information is
not available.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>schema id associated with this snapshot</dd>
</dl>
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