Exception: Cassandra::Errors::AlreadyExistsError

Inherits:

ConfigurationError

• Object
• StandardError
• ConfigurationError
• Cassandra::Errors::AlreadyExistsError

Defined in:

lib/cassandra/errors.rb

Overview

Raised when the query attempted to create a keyspace or a table that was already existing.

Examples:

Creating a table twice

session.execute("USE my_keyspace")
session.execute("CREATE TABLE users (user_id INT PRIMARY KEY)")
begin
  session.execute("CREATE TABLE users (user_id INT PRIMARY KEY)")
rescue Cassandra::Errors::AlreadyExistsError => e
  p ['already exists', e.keyspace, e.table]
end

See Also:

• Description of Already Exists Error in Apache Cassandra native protocol spec v1

Instance Attribute Summary

• #keyspace ⇒ String readonly

  Keyspace.

• #table ⇒ String^? readonly

  Table or nil.

Attributes included from ValidationError

#statement

Instance Attribute Details

#keyspace ⇒ String (readonly)

Returns keyspace.

Returns:

• (String) —

  keyspace

# File 'lib/cassandra/errors.rb', line 319

def keyspace
  @keyspace
end

#table ⇒ String^? (readonly)

Returns table or nil.

Returns:

• (String, nil) —

  table or nil

# File 'lib/cassandra/errors.rb', line 322

def table
  @table
end