getColumnDefinitions only returns meta data, to get the data, use the
iterator to navigate the rows
Iterator<Row> it = result.iterator();
while (it.hasNext()) {
Row r = it.next();
//do stuff with row
}
On 04/21/2013 12:02 AM, Techy Teck wrote:
I am working with Datastax java-driver. And I am trying to retrieve
few columns from the database basis on the input that is being passed
to the below method-
public Map<String, String> getAttributes(final String userId, final
Collection<String> attributeNames) {
String query="SELECT " +attributeNames.toString().substring(1,
attributeNames.toString().length()-1)+ " from profile where id =
'"+userId+ "';";
CassandraDatastaxConnection.getInstance();
ResultSet result =
CassandraDatastaxConnection.getSession().execute(query);
Map<String, String> attributes = new ConcurrentHashMap<String, String>();
for(Definition def : result.getColumnDefinitions()) {
//not sure how to put the columnName and columnValue that came back
from the database
attributes.put(column name, column value);
}
return attributes;
}
Now I got the result back from the database in *result*
*
*
Now how to put the colum name and column value that came back from the
database in a map?
I am not able to understand how to retrieve colum value for a
particular column in datastax java driver?
Any thoughts will be of great help.
