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HBASE-17962 Improve documentation on Rest interface 

(Excluded update to the ref guide, since it'll be copied from master branch prior to 1.4 release.)

Signed-off-by: Sean Busbey <busbey@apache.org>
This commit is contained in:
Niels Basjes 2017-04-26 11:21:39 +02:00 committed by Sean Busbey
parent 9a71bacdf0
commit fa4f638942
1 changed files with 7 additions and 1 deletions
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8
hbase-rest/src/main/java/org/apache/hadoop/hbase/rest/RowResource.java
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@ -139,7 +139,13 @@ public class RowResource extends ResourceBase {
if (!rowspec.hasColumns() || rowspec.getColumns().length > 1) {
servlet.getMetrics().incrementFailedGetRequests(1);
return Response.status(Response.Status.BAD_REQUEST).type(MIMETYPE_TEXT)
.entity("Bad request: Either 0 or more than 1 columns specified." + CRLF).build();
.entity("Bad request: Default 'GET' method only works if there is exactly 1 column " +
"in the row. Using the 'Accept' header with one of these formats lets you " +
"retrieve the entire row if it has multiple columns: " +
// Same as the @Produces list for the get method.
MIMETYPE_XML + ", " + MIMETYPE_JSON + ", " +
MIMETYPE_PROTOBUF + ", " + MIMETYPE_PROTOBUF_IETF +
CRLF).build();
}
MultivaluedMap<String, String> params = uriInfo.getQueryParameters();
try {