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<h2 title="Interface CreatableRelationProvider" class="title">Interface CreatableRelationProvider</h2>
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<pre>public interface <span class="strong">CreatableRelationProvider</span></pre>
<dl><dt><span class="strong">Since:</span></dt>
<dd>1.3.0</dd></dl>
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<td class="colFirst"><code><a href="../../../../../org/apache/spark/sql/sources/BaseRelation.html" title="class in org.apache.spark.sql.sources">BaseRelation</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/sql/sources/CreatableRelationProvider.html#createRelation(org.apache.spark.sql.SQLContext, org.apache.spark.sql.SaveMode, scala.collection.immutable.Map, org.apache.spark.sql.DataFrame)">createRelation</a></strong>(<a href="../../../../../org/apache/spark/sql/SQLContext.html" title="class in org.apache.spark.sql">SQLContext</a> sqlContext,
<a href="../../../../../org/apache/spark/sql/SaveMode.html" title="enum in org.apache.spark.sql">SaveMode</a> mode,
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<a href="../../../../../org/apache/spark/sql/DataFrame.html" title="class in org.apache.spark.sql">DataFrame</a> data)</code>
<div class="block">Creates a relation with the given parameters based on the contents of the given
DataFrame.</div>
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<a name="createRelation(org.apache.spark.sql.SQLContext, org.apache.spark.sql.SaveMode, scala.collection.immutable.Map, org.apache.spark.sql.DataFrame)">
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<h4>createRelation</h4>
<pre><a href="../../../../../org/apache/spark/sql/sources/BaseRelation.html" title="class in org.apache.spark.sql.sources">BaseRelation</a> createRelation(<a href="../../../../../org/apache/spark/sql/SQLContext.html" title="class in org.apache.spark.sql">SQLContext</a> sqlContext,
<a href="../../../../../org/apache/spark/sql/SaveMode.html" title="enum in org.apache.spark.sql">SaveMode</a> mode,
scala.collection.immutable.Map<java.lang.String,java.lang.String> parameters,
<a href="../../../../../org/apache/spark/sql/DataFrame.html" title="class in org.apache.spark.sql">DataFrame</a> data)</pre>
<div class="block">Creates a relation with the given parameters based on the contents of the given
DataFrame. The mode specifies the expected behavior of createRelation when
data already exists.
Right now, there are three modes, Append, Overwrite, and ErrorIfExists.
Append mode means that when saving a DataFrame to a data source, if data already exists,
contents of the DataFrame are expected to be appended to existing data.
Overwrite mode means that when saving a DataFrame to a data source, if data already exists,
existing data is expected to be overwritten by the contents of the DataFrame.
ErrorIfExists mode means that when saving a DataFrame to a data source,
if data already exists, an exception is expected to be thrown.
<p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>sqlContext</code> - (undocumented)</dd><dd><code>mode</code> - (undocumented)</dd><dd><code>parameters</code> - (undocumented)</dd><dd><code>data</code> - (undocumented)</dd>
<dt><span class="strong">Returns:</span></dt><dd>(undocumented)</dd><dt><span class="strong">Since:</span></dt>
<dd>1.3.0</dd></dl>
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