org.apache.cassandra.cql3.statements

## Class CreateKeyspaceStatement

- java.lang.Object
- - org.apache.cassandra.cql3.statements.ParsedStatement
  - - org.apache.cassandra.cql3.statements.CFStatement
    - - org.apache.cassandra.cql3.statements.SchemaAlteringStatement
      - - org.apache.cassandra.cql3.statements.CreateKeyspaceStatement

- All Implemented Interfaces:
    CQLStatement

      public class CreateKeyspaceStatement
      extends SchemaAlteringStatement

  A `CREATE KEYSPACE` statement parsed from a CQL query.

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from class org.apache.cassandra.cql3.statements.ParsedStatement

      `ParsedStatement.Prepared`

  - ### Field Summary

    - ### Fields inherited from class org.apache.cassandra.cql3.statements.CFStatement

      `cfName`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `CreateKeyspaceStatement(java.lang.String name, KeyspaceAttributes attrs, boolean ifNotExists)` Creates a new `CreateKeyspaceStatement` instance for a given keyspace name and keyword arguments.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `Event.SchemaChange` | `announceMigration(QueryState queryState, boolean isLocalOnly)` Announces the migration to other nodes in the cluster.
    `void` | `checkAccess(ClientState state)` Perform any access verification necessary for the statement.
    `protected void` | `grantPermissionsToCreator(QueryState state)` Schema alteration may result in a new database object (keyspace, table, role, function) being created capable of having permissions GRANTed on it.
    `java.lang.String` | `keyspace()`
    `void` | `validate(ClientState state)` The `CqlParser` only goes as far as extracting the keyword arguments from these statements, so this method is responsible for processing and validating.

    - ### Methods inherited from class org.apache.cassandra.cql3.statements.SchemaAlteringStatement

      `execute, executeInternal, getBoundTerms, prepare, prepareKeyspace`

    - ### Methods inherited from class org.apache.cassandra.cql3.statements.CFStatement

      `columnFamily, prepareKeyspace`

    - ### Methods inherited from class org.apache.cassandra.cql3.statements.ParsedStatement

      `getBoundVariables, getFunctions, setBoundVariables, setBoundVariables`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

    - ### Methods inherited from interface org.apache.cassandra.cql3.CQLStatement

      `getFunctions`

- - ### Constructor Detail

    - #### CreateKeyspaceStatement

          public CreateKeyspaceStatement(java.lang.String name,
                                         KeyspaceAttributes attrs,
                                         boolean ifNotExists)

      Creates a new `CreateKeyspaceStatement` instance for a given keyspace name and keyword arguments.
      Parameters:
        `name` - the name of the keyspace to create
        `attrs` - map of the raw keyword arguments that followed the `WITH` keyword.

  - ### Method Detail

    - #### keyspace

          public java.lang.String keyspace()

      Overrides:
        `keyspace` in class `CFStatement`

    - #### checkAccess

          public void checkAccess(ClientState state)
                           throws UnauthorizedException

      Description copied from interface: `CQLStatement`
      Perform any access verification necessary for the statement.
      Parameters:
        `state` - the current client state
      Throws:
        `UnauthorizedException`

    - #### validate

          public void validate(ClientState state)
                        throws RequestValidationException

      The `CqlParser` only goes as far as extracting the keyword arguments from these statements, so this method is responsible for processing and validating.
      Parameters:
        `state` - the current client state
      Throws:
        `InvalidRequestException` - if arguments are missing or unacceptable
        `RequestValidationException`

    - #### announceMigration

          public Event.SchemaChange announceMigration(QueryState queryState,
                                                      boolean isLocalOnly)
                                               throws RequestValidationException

      Description copied from class: `SchemaAlteringStatement`
      Announces the migration to other nodes in the cluster.
      Specified by:
        `announceMigration` in class `SchemaAlteringStatement`
      Returns:
        the schema change event corresponding to the execution of this statement, or `null` if no schema change has occurred (when IF NOT EXISTS is used, for example)
      Throws:
        `RequestValidationException`

    - #### grantPermissionsToCreator

          protected void grantPermissionsToCreator(QueryState state)

      Description copied from class: `SchemaAlteringStatement`
      Schema alteration may result in a new database object (keyspace, table, role, function) being created capable of having permissions GRANTed on it. The creator of the object (the primary role assigned to the AuthenticatedUser performing the operation) is automatically granted ALL applicable permissions on the object. This is a hook for subclasses to override in order to perform that grant when the statement is executed.
      Overrides:
        `grantPermissionsToCreator` in class `SchemaAlteringStatement`

Copyright © 2018 The Apache Software Foundation