org.apache.cassandra.cql3.statements
Class SchemaAlteringStatement
java.lang.Object
org.apache.cassandra.cql3.statements.ParsedStatement
org.apache.cassandra.cql3.statements.CFStatement
org.apache.cassandra.cql3.statements.SchemaAlteringStatement
- All Implemented Interfaces:
- CQLStatement
- Direct Known Subclasses:
- AlterKeyspaceStatement, AlterTableStatement, CreateColumnFamilyStatement, CreateIndexStatement, CreateKeyspaceStatement, DropColumnFamilyStatement, DropIndexStatement, DropKeyspaceStatement
public abstract class SchemaAlteringStatement
- extends CFStatement
- implements CQLStatement
Abstract class for statements that alter the schema.
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
SchemaAlteringStatement
protected SchemaAlteringStatement()
SchemaAlteringStatement
protected SchemaAlteringStatement(CFName name)
prepareKeyspace
public void prepareKeyspace(ClientState state)
throws InvalidRequestException
- Overrides:
prepareKeyspace in class CFStatement
- Throws:
InvalidRequestException
prepare
public ParsedStatement.Prepared prepare()
- Specified by:
prepare in class ParsedStatement
changeType
public abstract ResultMessage.SchemaChange.Change changeType()
announceMigration
public abstract void announceMigration()
throws RequestValidationException
- Throws:
RequestValidationException
validate
public void validate(ClientState state)
throws RequestValidationException
- 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:
RequestValidationException
execute
public ResultMessage execute(ConsistencyLevel cl,
QueryState state,
java.util.List<java.nio.ByteBuffer> variables)
throws RequestValidationException
- 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 statevariables - the values for bounded variables. The implementation
can assume that each bound term have a corresponding value.
- Throws:
RequestValidationException
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
Copyright © 2012 The Apache Software Foundation