org.apache.cassandra.cql3.statements
Class UseStatement

java.lang.Object
  org.apache.cassandra.cql3.statements.ParsedStatement
      org.apache.cassandra.cql3.statements.UseStatement

All Implemented Interfaces:

CQLStatement

public class UseStatement
extends ParsedStatement
implements CQLStatement

Nested Class Summary

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

ParsedStatement.Prepared

Constructor Summary

UseStatement(java.lang.String keyspace)

Method Summary

void	checkAccess(ClientState state) Perform any access verification necessary for the statement.
ResultMessage	execute(ConsistencyLevel cl, QueryState state, java.util.List<java.nio.ByteBuffer> variables) Execute the statement and return the resulting result or null if there is no result.
ResultMessage	executeInternal(QueryState state) Variante of execute used for internal query against the system tables, and thus only query the local node.
ParsedStatement.Prepared	prepare()
void	validate(ClientState state) Perform additional validation required by the statment.

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

getBoundsTerms, setBoundTerms

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

getBoundsTerms

Constructor Detail

UseStatement

public UseStatement(java.lang.String keyspace)

Method Detail

prepare

public ParsedStatement.Prepared prepare()
                                 throws InvalidRequestException

Specified by:

prepare in class ParsedStatement

Throws:

InvalidRequestException

checkAccess

public void checkAccess(ClientState state)

Description copied from interface: CQLStatement

Perform any access verification necessary for the statement.

Specified by:

checkAccess in interface CQLStatement

Parameters:

state - the current client state

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.

Specified by:

validate in interface CQLStatement

Parameters:

state - the current client state

Throws:

InvalidRequestException

execute

public ResultMessage execute(ConsistencyLevel cl,
                             QueryState state,
                             java.util.List<java.nio.ByteBuffer> variables)
                      throws InvalidRequestException

Description copied from interface: CQLStatement

Execute the statement and return the resulting result or null if there is no result.

Specified by:

execute in interface CQLStatement

state - the current query state

variables - the values for bounded variables. The implementation can assume that each bound term have a corresponding value.

Throws:

InvalidRequestException

executeInternal

public ResultMessage executeInternal(QueryState state)

Description copied from interface: CQLStatement

Variante of execute used for internal query against the system tables, and thus only query the local node.

Specified by:

executeInternal in interface CQLStatement

Parameters:

state - the current query state