Fetching single Column from Cassandra database

package com.examples;

import java.io.UnsupportedEncodingException;
import java.util.Date;
import java.util.Iterator;
import java.util.List;

import org.apache.cassandra.thrift.Cassandra;
import org.apache.cassandra.thrift.Column;
import org.apache.cassandra.thrift.ColumnOrSuperColumn;
import org.apache.cassandra.thrift.ColumnParent;
import org.apache.cassandra.thrift.ConsistencyLevel;
import org.apache.cassandra.thrift.InvalidRequestException;
import org.apache.cassandra.thrift.KeyRange;
import org.apache.cassandra.thrift.KeySlice;
import org.apache.cassandra.thrift.NotFoundException;
import org.apache.cassandra.thrift.SlicePredicate;
import org.apache.cassandra.thrift.SliceRange;
import org.apache.cassandra.thrift.TimedOutException;
import org.apache.cassandra.thrift.UnavailableException;
import org.apache.thrift.TException;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.protocol.TProtocol;
import org.apache.thrift.transport.TSocket;
import org.apache.thrift.transport.TTransport;

public class CassandraFeatchHInfo {
public static final String UTF8 = “UTF8”;

public static void main(String[] args) throws UnsupportedEncodingException,
InvalidRequestException, UnavailableException, TimedOutException,
TException, NotFoundException {

TTransport tr = new TSocket(“”, 9160);
TProtocol proto = new TBinaryProtocol(tr);
Cassandra.Client client = new Cassandra.Client(proto);


String keyspace = “Historical_Info”;
String columnFamily = “Historical_Info_Column”;
//String keyUserID = “3”;

// read entire row
SlicePredicate predicate = new SlicePredicate();
SliceRange sliceRange = new SliceRange();
sliceRange.setStart(new byte[0]);
sliceRange.setFinish(new byte[0]);

KeyRange keyrRange = new KeyRange();

ColumnParent parent = new ColumnParent(columnFamily);

List<KeySlice> ls = client.get_range_slices(keyspace, parent, predicate, keyrRange, ConsistencyLevel.ONE);

for (KeySlice result : ls) {
List<ColumnOrSuperColumn> column = result.columns;
for (ColumnOrSuperColumn result2 : column) {
Column column2 = result2.column;
System.out.println(new String(column2.name, UTF8) + ” ->  ” + new String(column2.value, UTF8));



I born in Good cultural place called India. My family is traditional family. We fallow all Indian traditions.

Tagged with: , ,
Posted in Cassandra, Databases
3 comments on “Fetching single Column from Cassandra database
  1. Bhalchandra Bhutkar says:

    I am getting following errors while running the above code. I am using cassandra 1.1.5 :

    1)The method setStart_key(byte[]) in the type KeyRange is not applicable for the arguments (String)

    2)The method setEnd_key(byte[]) in the type KeyRange is not applicable for the arguments (String)

    3)The method get_range_slices(ColumnParent, SlicePredicate, KeyRange, ConsistencyLevel) in the type Cassandra.Client is not applicable for the arguments (String, ColumnParent, SlicePredicate, KeyRange, ConsistencyLevel)

    4)The constructor String(ByteBuffer, String) is undefined

  2. This code has been written using the 0.6 version of cassandra.

    I am not sure whether it works with Cassandra 1.1.5

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Join 676 other followers

August 2010
« Jul   Sep »
Mallikarjun Gunda

This is Mallikarjun Gunda, I am working as a software professional. Blogging is my Passion. This blog contains the posts on Java related technologies and programming languages. I am happy to share my knowledge through the blogs.

Blog Stats
  • 228,949 hits
All tags
AngularJS Apache Cassandra Arrays in Java Cassandra Cassandra Database Cassandra examples client stubs creating a java web service creating a web service using java difference between interface and abstract class Differences between SOAP and RESTfull webservices Display div as Overlay using JQuery download the spring basic application File directory Generating webservice client stubs Hibernate hibernate exceptions How to display over using JQuery how to generated web service client stubs in STS How to implement Spring basic application how to write singleton design pattern in java interface in java Java Java Arrays Java Example Programs Java examples Java interview questions java programs java project Java sample Programs Java Script JavaScript JavaServer Faces Java Sorting alogorithms Java Tutorials javatutorials Java Web services JDBC open shift openshift Overlay implementation using JQuery Overlay in JQuery POI API POI Examples public class public static void main Redhat OpenShift representational state transfer Restfull webservices sample programs in java Service-oriented architecture Singleton design pattern in java SOAP SOAP Webservices software Spring Framework Spring Interview Questions Spring MVC Spring MVC Example program Spring MVC sample Program Spring Sample Programs Spring Tutorials Struts technology Top Java Interview questions w3c dom Web service web service client Web Service Description Language webservices Web services writing singleton design pattern in Java WSDL Xml xml parsers