[SPARK-9350][SQL] Introduce an InternalRow generic getter that requires a DataType

Currently UnsafeRow cannot support a generic getter. However, if the data type is known, we can support a generic getter.

Author: Reynold Xin <rxin@databricks.com>

Closes #7666 from rxin/generic-getter-with-datatype and squashes the following commits:

ee2874c [Reynold Xin] Add a default implementation for getStruct.
1e109a0 [Reynold Xin] [SPARK-9350][SQL] Introduce an InternalRow generic getter that requires a DataType.
033ee88 [Reynold Xin] Removed getAs in non test code.

1 files changed, 0 insertions, 5 deletions

diff --git a/sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/UnsafeRow.java b/sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/UnsafeRow.java
index 9be9089493..87e5a89c19 100644
--- a/sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/UnsafeRow.java
+++ b/sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/UnsafeRow.java
@@ -236,11 +236,6 @@ public final class UnsafeRow extends MutableRow {
   }
 
   @Override
-  public <T> T getAs(int ordinal) {
-    throw new UnsupportedOperationException();
-  }
-
-  @Override
   public boolean isNullAt(int ordinal) {
     assertIndexIsValid(ordinal);
     return BitSetMethods.isSet(baseObject, baseOffset, ordinal);