Hi,
I'm trying to use Eclipse with Hector (latest version) to write a new row to
Cassandra 0.7RC4. However, I keep getting a Java error. Any
Here is the .java file:
- - - - - -
import me.prettyprint.cassandra.serializers.StringSerializer;
import me.prettyprint.cassandra.service.CassandraHostConfigurator;
import me.prettyprint.hector.api.Cluster;
import me.prettyprint.hector.api.Keyspace;
import me.prettyprint.hector.api.factory.HFactory;
import me.prettyprint.hector.api.mutation.Mutator;
class HelloWorldApp {
private static StringSerializer stringSerializer =
StringSerializer.get();
public static void main(String[] args) {
System.out.println("Hello World!"); // Display the string.
Cluster cluster = HFactory.getOrCreateCluster("Test Cluster",
new CassandraHostConfigurator("170.252.179.233:9160"));
Keyspace keyspace = HFactory.createKeyspace("SameerKey",
cluster);
Mutator<String> mutator = HFactory.createMutator(keyspace,
stringSerializer);
mutator.insert("cat", "Pets",
HFactory.createStringColumn("says", "meow"));
}
}
- - - - - - - -
Error:
Hello World!
log4j:WARN No appenders could be found for logger
(me.prettyprint.cassandra.connection.CassandraHostRetryService).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for
more info.
Exception in thread "main" java.lang.Error: Unresolved compilation problems:
The import org.apache.commons.pool cannot be resolved
GenericObjectPool cannot be resolved to a variable
GenericObjectPool cannot be resolved to a variable
GenericObjectPool cannot be resolved to a variable
at
me.prettyprint.cassandra.service.CassandraHost.<init>(CassandraHost.java:9)
at
me.prettyprint.cassandra.service.CassandraHostConfigurator.buildCassandraHosts(CassandraHostConfigurator.java:53)
at
me.prettyprint.cassandra.connection.HConnectionManager.<init>(HConnectionManager.java:60)
at
me.prettyprint.cassandra.service.AbstractCluster.<init>(AbstractCluster.java:62)
at
me.prettyprint.cassandra.service.AbstractCluster.<init>(AbstractCluster.java:58)
at
me.prettyprint.cassandra.service.ThriftCluster.<init>(ThriftCluster.java:17)
at
me.prettyprint.hector.api.factory.HFactory.createCluster(HFactory.java:107)
at
me.prettyprint.hector.api.factory.HFactory.getOrCreateCluster(HFactory.java:99)
at HelloWorldApp.main(test.java:13)
- - - - - -
By the way, the Hector PDF said to add the google-collections library as a
runtime dependency, but I couldn't find v1.0 of this b/c it's been replaced
by Guava. I added Guava r07 to the build path. Also, instead of slf4j-api &
slf4j-log4j 1.5.8, I'm using v1.6.1 (not sure if this matters).
Any ideas?
