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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.iceberg.flink</a></div>
<h2 title="Class FlinkSchemaUtil" class="title">Class FlinkSchemaUtil</h2>
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<li>java.lang.Object</li>
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<li>org.apache.iceberg.flink.FlinkSchemaUtil</li>
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<pre>public class <span class="typeNameLabel">FlinkSchemaUtil</span>
extends java.lang.Object</pre>
<div class="block">Converter between Flink types and Iceberg type.
The conversion is not a 1:1 mapping that not allows back-and-forth conversion. So some information might get lost
during the back-and-forth conversion.
<p>
This inconsistent types:
<ul>
<li>map Iceberg UUID type to Flink BinaryType(16)</li>
<li>map Flink VarCharType(_) and CharType(_) to Iceberg String type</li>
<li>map Flink VarBinaryType(_) to Iceberg Binary type</li>
<li>map Flink TimeType(_) to Iceberg Time type (microseconds)</li>
<li>map Flink TimestampType(_) to Iceberg Timestamp without zone type (microseconds)</li>
<li>map Flink LocalZonedTimestampType(_) to Iceberg Timestamp with zone type (microseconds)</li>
<li>map Flink MultiSetType to Iceberg Map type(element, int)</li>
</ul>
<p></div>
</li>
</ul>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
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<td class="colFirst"><code>static <a href="../Schema.html" title="class in org.apache.iceberg">Schema</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#convert(org.apache.flink.table.api.TableSchema)">convert</a></span>&#8203;(org.apache.flink.table.api.TableSchema&nbsp;schema)</code></th>
<td class="colLast">
<div class="block">Convert the flink table schema to apache iceberg schema.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>static org.apache.flink.table.types.logical.RowType</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#convert(org.apache.iceberg.Schema)">convert</a></span>&#8203;(<a href="../Schema.html" title="class in org.apache.iceberg">Schema</a>&nbsp;schema)</code></th>
<td class="colLast">
<div class="block">Convert a <a href="../Schema.html" title="class in org.apache.iceberg"><code>Schema</code></a> to a <code>Flink type</code>.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>static <a href="../Schema.html" title="class in org.apache.iceberg">Schema</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#convert(org.apache.iceberg.Schema,org.apache.flink.table.api.TableSchema)">convert</a></span>&#8203;(<a href="../Schema.html" title="class in org.apache.iceberg">Schema</a>&nbsp;baseSchema,
org.apache.flink.table.api.TableSchema&nbsp;flinkSchema)</code></th>
<td class="colLast">
<div class="block">Convert a Flink <code>TableSchema</code> to a <a href="../Schema.html" title="class in org.apache.iceberg"><code>Schema</code></a> based on the given schema.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>static org.apache.flink.table.types.logical.LogicalType</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#convert(org.apache.iceberg.types.Type)">convert</a></span>&#8203;(<a href="../types/Type.html" title="interface in org.apache.iceberg.types">Type</a>&nbsp;type)</code></th>
<td class="colLast">
<div class="block">Convert a <a href="../types/Type.html" title="interface in org.apache.iceberg.types"><code>Type</code></a> to a <code>Flink type</code>.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>static org.apache.flink.table.api.TableSchema</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toSchema(org.apache.flink.table.types.logical.RowType)">toSchema</a></span>&#8203;(org.apache.flink.table.types.logical.RowType&nbsp;rowType)</code></th>
<td class="colLast">
<div class="block">Convert a <code>RowType</code> to a <code>TableSchema</code>.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>static org.apache.flink.table.api.TableSchema</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toSchema(org.apache.iceberg.Schema)">toSchema</a></span>&#8203;(<a href="../Schema.html" title="class in org.apache.iceberg">Schema</a>&nbsp;schema)</code></th>
<td class="colLast">
<div class="block">Convert a <a href="../Schema.html" title="class in org.apache.iceberg"><code>Schema</code></a> to a <code>TableSchema</code>.</div>
</td>
</tr>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h4>convert</h4>
<pre class="methodSignature">public static&nbsp;<a href="../Schema.html" title="class in org.apache.iceberg">Schema</a>&nbsp;convert&#8203;(org.apache.flink.table.api.TableSchema&nbsp;schema)</pre>
<div class="block">Convert the flink table schema to apache iceberg schema.</div>
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<h4>convert</h4>
<pre class="methodSignature">public static&nbsp;<a href="../Schema.html" title="class in org.apache.iceberg">Schema</a>&nbsp;convert&#8203;(<a href="../Schema.html" title="class in org.apache.iceberg">Schema</a>&nbsp;baseSchema,
org.apache.flink.table.api.TableSchema&nbsp;flinkSchema)</pre>
<div class="block">Convert a Flink <code>TableSchema</code> to a <a href="../Schema.html" title="class in org.apache.iceberg"><code>Schema</code></a> based on the given schema.
<p>
This conversion does not assign new ids; it uses ids from the base schema.
<p>
Data types, field order, and nullability will match the Flink type. This conversion may return
a schema that is not compatible with base schema.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>baseSchema</code> - a Schema on which conversion is based</dd>
<dd><code>flinkSchema</code> - a Flink TableSchema</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the equivalent Schema</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if the type cannot be converted or there are missing ids</dd>
</dl>
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<h4>convert</h4>
<pre class="methodSignature">public static&nbsp;org.apache.flink.table.types.logical.RowType&nbsp;convert&#8203;(<a href="../Schema.html" title="class in org.apache.iceberg">Schema</a>&nbsp;schema)</pre>
<div class="block">Convert a <a href="../Schema.html" title="class in org.apache.iceberg"><code>Schema</code></a> to a <code>Flink type</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>schema</code> - a Schema</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the equivalent Flink type</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if the type cannot be converted to Flink</dd>
</dl>
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<h4>convert</h4>
<pre class="methodSignature">public static&nbsp;org.apache.flink.table.types.logical.LogicalType&nbsp;convert&#8203;(<a href="../types/Type.html" title="interface in org.apache.iceberg.types">Type</a>&nbsp;type)</pre>
<div class="block">Convert a <a href="../types/Type.html" title="interface in org.apache.iceberg.types"><code>Type</code></a> to a <code>Flink type</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>type</code> - a Type</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the equivalent Flink type</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if the type cannot be converted to Flink</dd>
</dl>
</li>
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<h4>toSchema</h4>
<pre class="methodSignature">public static&nbsp;org.apache.flink.table.api.TableSchema&nbsp;toSchema&#8203;(org.apache.flink.table.types.logical.RowType&nbsp;rowType)</pre>
<div class="block">Convert a <code>RowType</code> to a <code>TableSchema</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rowType</code> - a RowType</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Flink TableSchema</dd>
</dl>
</li>
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<h4>toSchema</h4>
<pre class="methodSignature">public static&nbsp;org.apache.flink.table.api.TableSchema&nbsp;toSchema&#8203;(<a href="../Schema.html" title="class in org.apache.iceberg">Schema</a>&nbsp;schema)</pre>
<div class="block">Convert a <a href="../Schema.html" title="class in org.apache.iceberg"><code>Schema</code></a> to a <code>TableSchema</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>schema</code> - iceberg schema to convert.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Flink TableSchema.</dd>
</dl>
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