Materialized View Metadata

PHP Driver exposes the Cassandra Schema Metadata for materialized views.

Background

Given

a running Cassandra cluster

And

the following schema:

CREATE KEYSPACE simplex WITH replication = {
  'class': 'SimpleStrategy',
  'replication_factor': 1
} AND DURABLE_WRITES = false;
USE simplex;
CREATE TABLE users (id int PRIMARY KEY, name text);
CREATE MATERIALIZED VIEW IF NOT EXISTS users_view AS SELECT name FROM users WHERE name IS NOT NULL PRIMARY KEY(name, id);

Getting a materialized view

Given

the following example:

<?php
$cluster = Cassandra::cluster()
                  ->withContactPoints('127.0.0.1')
                  ->build();
$session = $cluster->connect("simplex");
$schema = $session->schema();
$view = $schema->keyspace("simplex")->materializedView("users_view");

echo "Name: " . $view->name() . "\n";
echo "BaseTable: " . $view->baseTable()->name() . "\n";
echo "DefaultTimeToLive: " . $view->option("default_time_to_live") . "\n";
echo "Compression: " . var_export($view->option("compression"), true) . "\n";

When

it is executed

Then

its output should contain:

Name: users_view
BaseTable: users
DefaultTimeToLive: 0
Compression: Cassandra\Map::__set_state(array(
   'type' =>
  Cassandra\Type\Map::__set_state(array(
     'keyType' =>
    Cassandra\Type\Scalar::__set_state(array(
       'name' => 'varchar',
    )),
     'valueType' =>
    Cassandra\Type\Scalar::__set_state(array(
       'name' => 'varchar',
    )),
  )),
   'keys' =>
  array (
    0 => 'chunk_length_in_kb',
    1 => 'class',
  ),
   'values' =>
  array (
    0 => '64',
    1 => 'org.apache.cassandra.io.compress.LZ4Compressor',
  ),
))