jhnmora000 commented on a change in pull request #156: GORA 411 - Add
exists(key) to DataStore interface
URL: https://github.com/apache/gora/pull/156#discussion_r280295627
##########
File path:
gora-ignite/src/main/java/org/apache/gora/ignite/store/IgniteStore.java
##########
@@ -176,6 +176,27 @@ public boolean schemaExists() throws GoraException {
}
}
+ @Override
+ public boolean exists(K key) throws GoraException {
+ Object[] keyl = null;
+ if (igniteMapping.getPrimaryKey().size() == 1) {
+ keyl = new Object[]{key};
+ } else {
+ //Composite key pending
+ }
+ String selectQuery =
IgniteSQLBuilder.createSelectQueryExists(igniteMapping);
+ try (PreparedStatement stmt = connection.prepareStatement(selectQuery)) {
+ IgniteSQLBuilder.fillSelectQuery(stmt, igniteMapping, keyl);
+ ResultSet rs = stmt.executeQuery();
+ rs.next();
+ int resp = rs.getInt(1);
Review comment:
I tried to use a similar approach to one used in the Cassandra backend
(based on this [post](https://stackoverflow.com/a/34475402)), but what you
suggest seems more intuitive, I will try it.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
With regards,
Apache Git Services
