[SPARK-5193][SQL] Tighten up SQLContext API

1. Removed 2 implicits (logicalPlanToSparkQuery and baseRelationToSchemaRDD)
2. Moved extraStrategies into ExperimentalMethods.
3. Made private methods protected[sql] so they don't show up in javadocs.
4. Removed createParquetFile.
5. Added Java version of applySchema to SQLContext.

Author: Reynold Xin <rxin@databricks.com>

Closes #4049 from rxin/sqlContext-refactor and squashes the following commits:

a326a1a [Reynold Xin] Remove createParquetFile and add applySchema for Java to SQLContext.
ecd6685 [Reynold Xin] Added baseRelationToSchemaRDD back.
4a38c9b [Reynold Xin] [SPARK-5193][SQL] Tighten up SQLContext API

2 files changed, 3 insertions, 3 deletions

diff --git a/sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveContext.scala b/sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveContext.scala
index bf56e60cf9..a9a20a54be 100644
--- a/sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveContext.scala
+++ b/sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveContext.scala
@@ -71,7 +71,7 @@ class LocalHiveContext(sc: SparkContext) extends HiveContext(sc) {
 class HiveContext(sc: SparkContext) extends SQLContext(sc) {
   self =>
 
-  private[sql] override lazy val conf: SQLConf = new SQLConf {
+  protected[sql] override lazy val conf: SQLConf = new SQLConf {
     override def dialect: String = getConf(SQLConf.DIALECT, "hiveql")
   }
 
@@ -348,7 +348,7 @@ class HiveContext(sc: SparkContext) extends SQLContext(sc) {
   val hivePlanner = new SparkPlanner with HiveStrategies {
     val hiveContext = self
 
-    override def strategies: Seq[Strategy] = extraStrategies ++ Seq(
+    override def strategies: Seq[Strategy] = experimental.extraStrategies ++ Seq(
       DataSourceStrategy,
       HiveCommandStrategy(self),
       HiveDDLStrategy,
diff --git a/sql/hive/src/main/scala/org/apache/spark/sql/hive/TestHive.scala b/sql/hive/src/main/scala/org/apache/spark/sql/hive/TestHive.scala
index 52e1f0d94f..47431cef03 100644
--- a/sql/hive/src/main/scala/org/apache/spark/sql/hive/TestHive.scala
+++ b/sql/hive/src/main/scala/org/apache/spark/sql/hive/TestHive.scala
@@ -102,7 +102,7 @@ class TestHiveContext(sc: SparkContext) extends HiveContext(sc) {
     new this.QueryExecution { val logical = plan }
 
   /** Fewer partitions to speed up testing. */
-  private[sql] override lazy val conf: SQLConf = new SQLConf {
+  protected[sql] override lazy val conf: SQLConf = new SQLConf {
     override def numShufflePartitions: Int = getConf(SQLConf.SHUFFLE_PARTITIONS, "5").toInt
     override def dialect: String = getConf(SQLConf.DIALECT, "hiveql")
   }