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:

$cluster = Dse::cluster()->build();
$session = $cluster->connect("simplex");
$schema = $session->schema();
$view = $schema->keyspace("simplex")->materializedView("users_view");

echo "Name => {$view->name()}" . PHP_EOL;
echo "Base Table => {$view->baseTable()->name()}" . PHP_EOL;
echo "Default Time To Live => {$view->option("default_time_to_live")}" . PHP_EOL;
echo "Compression:" . PHP_EOL;
foreach ($view->option("compression") as $key => $value) {
    echo "  {$key} => {$value}" . PHP_EOL;
}

When

it is executed

Then

its output should contain:

Name => users_view
Base Table => users
Default Time To Live => 0
Compression:
  chunk_length_in_kb => 64
  class => org.apache.cassandra.io.compress.LZ4Compressor