diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/JavaTypeInference.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/JavaTypeInference.scala index 625c8d3a62125..9a3f9694e4c48 100644 --- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/JavaTypeInference.scala +++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/JavaTypeInference.scala @@ -38,12 +38,21 @@ private [sql] object JavaTypeInference { private val keySetReturnType = classOf[JMap[_, _]].getMethod("keySet").getGenericReturnType private val valuesReturnType = classOf[JMap[_, _]].getMethod("values").getGenericReturnType + /** + * Infers the corresponding SQL data type of a JavaClean class. + * @param beanClass Java type + * @return (SQL data type, nullable) + */ + def inferDataType(beanClass: Class[_]): (DataType, Boolean) = { + inferDataType(TypeToken.of(beanClass)) + } + /** * Infers the corresponding SQL data type of a Java type. * @param typeToken Java type * @return (SQL data type, nullable) */ - private [sql] def inferDataType(typeToken: TypeToken[_]): (DataType, Boolean) = { + private def inferDataType(typeToken: TypeToken[_]): (DataType, Boolean) = { // TODO: All of this could probably be moved to Catalyst as it is mostly not Spark specific. typeToken.getRawType match { case c: Class[_] if c.isAnnotationPresent(classOf[SQLUserDefinedType]) => diff --git a/sql/core/src/main/scala/org/apache/spark/sql/SQLContext.scala b/sql/core/src/main/scala/org/apache/spark/sql/SQLContext.scala index 3935f7b321b85..15c30352bee69 100644 --- a/sql/core/src/main/scala/org/apache/spark/sql/SQLContext.scala +++ b/sql/core/src/main/scala/org/apache/spark/sql/SQLContext.scala @@ -27,8 +27,6 @@ import scala.language.implicitConversions import scala.reflect.runtime.universe.TypeTag import scala.util.control.NonFatal -import com.google.common.reflect.TypeToken - import org.apache.spark.SparkContext import org.apache.spark.annotation.{DeveloperApi, Experimental} import org.apache.spark.api.java.{JavaRDD, JavaSparkContext} @@ -1011,7 +1009,7 @@ class SQLContext(@transient val sparkContext: SparkContext) * Returns a Catalyst Schema for the given java bean class. */ protected def getSchema(beanClass: Class[_]): Seq[AttributeReference] = { - val (dataType, _) = JavaTypeInference.inferDataType(TypeToken.of(beanClass)) + val (dataType, _) = JavaTypeInference.inferDataType(beanClass) dataType.asInstanceOf[StructType].fields.map { f => AttributeReference(f.name, f.dataType, f.nullable)() }