org.apache.cassandra.cql3.statements

Class CreateAggregateStatement

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.CreateAggregateStatement

All Implemented Interfaces:

CQLStatement

public final class CreateAggregateStatement
extends SchemaAlteringStatement

A CREATE AGGREGATE 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
CreateAggregateStatement(FunctionName functionName, java.util.List<CQL3Type.Raw> argRawTypes, java.lang.String stateFunc, CQL3Type.Raw stateType, java.lang.String finalFunc, Term.Raw ival, boolean orReplace, boolean ifNotExists)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	announceMigration(boolean isLocalOnly) Announces the migration to other nodes in the cluster.
Event.SchemaChange	changeEvent()
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.
ParsedStatement.Prepared	prepare()
void	prepareKeyspace(ClientState state)
void	validate(ClientState state) Perform additional validation required by the statment.

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

execute, executeInternal, getBoundTerms

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

columnFamily, keyspace, prepareKeyspace

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

getBoundVariables, getFunctions, 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

CreateAggregateStatement

public CreateAggregateStatement(FunctionName functionName,
                        java.util.List<CQL3Type.Raw> argRawTypes,
                        java.lang.String stateFunc,
                        CQL3Type.Raw stateType,
                        java.lang.String finalFunc,
                        Term.Raw ival,
                        boolean orReplace,
                        boolean ifNotExists)

Method Detail

prepare

public ParsedStatement.Prepared prepare()

Overrides:

prepare in class SchemaAlteringStatement

prepareKeyspace

public void prepareKeyspace(ClientState state)
                     throws InvalidRequestException

Overrides:

prepareKeyspace in class SchemaAlteringStatement

Throws:

InvalidRequestException

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

checkAccess

public void checkAccess(ClientState state)
                 throws UnauthorizedException,
                        InvalidRequestException

Description copied from interface: CQLStatement

Perform any access verification necessary for the statement.

Parameters:

state - the current client state

Throws:

UnauthorizedException

InvalidRequestException

validate

public void validate(ClientState state)
              throws InvalidRequestException

Description copied from interface: CQLStatement

Perform additional validation required by the statment. To be overriden by subclasses if needed.

Parameters:

state - the current client state

Throws:

InvalidRequestException

changeEvent

public Event.SchemaChange changeEvent()

Specified by:

changeEvent in class SchemaAlteringStatement

announceMigration

public boolean announceMigration(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:

true if the execution of this statement resulted in a schema change, false otherwise (when IF NOT EXISTS is used, for example)

Throws:

RequestValidationException