[kudu-CR] [java] Add private diff scan support

["Grant Henke (Code Review)" <ge...@cloudera.org>]

Hello Kudu Jenkins, Adar Dembo, 

I'd like you to reexamine a change. Please visit

    http://gerrit.cloudera.org:8080/12689

to look at the new patch set (#3).

Change subject: [java] Add private diff scan support
......................................................................

[java] Add private diff scan support

Adds a private diff scan API to the java client. This is
acheived primarily by adding a
`diffScan(long startTimestamp, long endTimestamp)`
method to the AbstractKuduScannerBuilder builder,
and then configuring the scan RPC to include the set fields.

The column projection of the scan will include an extra
“is_deleted” column when a diff scan is performed.
This column can be used like a standard boolean
column to detect if the row was deleted.

Change-Id: I51b01ae76cd22407df9097b56629ac7262ec2964
---
M java/kudu-client/src/main/java/org/apache/kudu/Type.java
M java/kudu-client/src/main/java/org/apache/kudu/client/AbstractKuduScannerBuilder.java
M java/kudu-client/src/main/java/org/apache/kudu/client/AsyncKuduScanner.java
M java/kudu-client/src/main/java/org/apache/kudu/client/KuduScanToken.java
M java/kudu-client/src/main/java/org/apache/kudu/client/KuduScanner.java
M java/kudu-client/src/main/java/org/apache/kudu/client/PartialRow.java
M java/kudu-client/src/main/java/org/apache/kudu/client/ProtobufHelper.java
M java/kudu-client/src/main/java/org/apache/kudu/client/RowResult.java
M java/kudu-client/src/main/java/org/apache/kudu/util/DataGenerator.java
M java/kudu-client/src/test/java/org/apache/kudu/client/TestKuduScanner.java
M java/kudu-client/src/test/java/org/apache/kudu/client/TestScannerMultiTablet.java
M src/kudu/client/client.proto
12 files changed, 332 insertions(+), 27 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/89/12689/3
-- 
To view, visit http://gerrit.cloudera.org:8080/12689
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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I51b01ae76cd22407df9097b56629ac7262ec2964
Gerrit-Change-Number: 12689
Gerrit-PatchSet: 3
Gerrit-Owner: Grant Henke <gr...@apache.org>
Gerrit-Reviewer: Adar Dembo <ad...@cloudera.com>
Gerrit-Reviewer: Grant Henke <gr...@apache.org>
Gerrit-Reviewer: Kudu Jenkins (120)