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[SPARK-16816] Modify java example which is also reflect in documentation exmaple #14436

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phalodi wants to merge 1 commit into from
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[SPARK-16816] Modify java example which is also reflect in documentation exmaple #14436

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16 changes: 16 additions & 0 deletions examples/src/main/java/org/apache/spark/examples/sql/JavaSQLDataSourceExample.java
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Original file line number Diff line number Diff line change
Expand Up @@ -19,10 +19,13 @@
// $example on:schema_merging$
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
// $example off:schema_merging$

// $example on:basic_parquet_example$
import org.apache.spark.api.java.JavaRDD;
import org.apache.spark.api.java.JavaSparkContext;
import org.apache.spark.api.java.function.MapFunction;
import org.apache.spark.sql.Encoders;
// import org.apache.spark.sql.Encoders;
Expand Down Expand Up @@ -213,6 +216,19 @@ private static void runJsonDatasetExample(SparkSession spark) {
// +------+
// |Justin|
// +------+

// Alternatively, a DataFrame can be created for a JSON dataset represented by
// an RDD[String] storing one JSON object per string.
List<String> jsonData = Arrays.asList(
"{\"name\":\"Yin\",\"address\":{\"city\":\"Columbus\",\"state\":\"Ohio\"}}");
JavaRDD<String> anotherPeopleRDD = new JavaSparkContext(spark.sparkContext()).parallelize(jsonData);
Dataset anotherPeople = spark.read().json(anotherPeopleRDD);
anotherPeople.show();
// +---------------+----+
// | address|name|
// +---------------+----+
// |[Columbus,Ohio]| Yin|
// +---------------+----+
// $example off:json_dataset$
}

Expand Down