Create a Composite Column in Cassandra using Hector Template

2.6k Views Asked by At

Requirements: Composite Column(Not DynamicComposite), Hector Template Implementation

Hi.. I am currently trying to create a columnfamily with the below specs:

somekeyId UUID
Site URL UTF8Type
Page URL UTF8Type
   - parentURL UTF8Type (Composite)
   - anchortext UTF8Type (Composite)

I have created the following code:

To Create The ColumnFamily:

List<ColumnDefinition> columnList = new    ArrayList<ColumnDefinition>();
...

ColumnFamilyDefinition cfDef = HFactory.createColumnFamilyDefinition(keyspaceName, "page_internal_links", ComparatorType.COMPOSITETYPE, columnList);
    cfDef.setComparatorTypeAlias("(UTF8Type, UTF8Type, UTF8Type)");
    cfDef.setKeyValidationClass(ComparatorType.UTF8TYPE.getTypeName());

Composite key = new Composite();
key.addComponent(parentURL, StringSerializer.get());
key.addComponent(anchorText, StringSerializer.get());

ColumnFamilyTemplate<String, Composite> compTemplate = 
            new ThriftColumnFamilyTemplate<String, Composite>(
                    ksp, "linksCF", StringSerializer.get(), CompositeSerializer.get());
ColumnFamilyUpdater<String, Composite> compUpdater = compTemplate.createUpdater("key"); // In this row key, I want to provide somekeyId UUID
// Any suggestions here ??
compTemplate.update(compUpdater);

Thanks for the help in advance. I've been looking for tuts/docs everywhere.. But i ended up nowhere...

0

There are 0 best solutions below