org.apache.cassandra.cql3.statements
Class UpdateStatement

java.lang.Object
  org.apache.cassandra.cql3.statements.ParsedStatement
      org.apache.cassandra.cql3.statements.CFStatement
          org.apache.cassandra.cql3.statements.ModificationStatement
              org.apache.cassandra.cql3.statements.UpdateStatement

All Implemented Interfaces:

CQLStatement

public class UpdateStatement
extends ModificationStatement

An UPDATE statement parsed from a CQL query statement.

Nested Class Summary

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

ModificationStatement.Type

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.ModificationStatement

defaultConsistency, type

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

cfName

Constructor Summary

UpdateStatement(CFName name, Attributes attrs, java.util.List<ColumnIdentifier> columnNames, java.util.List<Operation> columnOperations)
Creates a new UpdateStatement from a column family name, a consistency level, key, and lists of column names and values.

UpdateStatement(CFName name, java.util.List<Pair<ColumnIdentifier,Operation>> columns, java.util.List<Relation> whereClause, Attributes attrs)
Creates a new UpdateStatement from a column family name, columns map, consistency level, and key term.

Method Summary

java.util.Collection<IMutation>	getMutations(java.util.List<java.nio.ByteBuffer> variables, boolean local, ConsistencyLevel cl, long now) Convert statement into a list of mutations to apply on the server
ParsedStatement.Prepared	prepare()
ParsedStatement.Prepared	prepare(ColumnSpecification[] boundNames)
java.lang.String	toString()
protected void	validateConsistency(ConsistencyLevel cl)

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

checkAccess, execute, executeInternal, getTimestamp, getTimeToLive, isSetTimestamp, readRows, setTimestamp, validate

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

columnFamily, keyspace, prepareKeyspace

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, wait, wait, wait

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

getBoundsTerms

Constructor Detail

UpdateStatement

public UpdateStatement(CFName name,
                       java.util.List<Pair<ColumnIdentifier,Operation>> columns,
                       java.util.List<Relation> whereClause,
                       Attributes attrs)

Creates a new UpdateStatement from a column family name, columns map, consistency level, and key term.

Parameters:

name - column family being operated on

columns - a map of column name/values pairs

whereClause - the where clause

attrs - additional attributes for statement (CL, timestamp, timeToLive)

UpdateStatement

public UpdateStatement(CFName name,
                       Attributes attrs,
                       java.util.List<ColumnIdentifier> columnNames,
                       java.util.List<Operation> columnOperations)

Creates a new UpdateStatement from a column family name, a consistency level, key, and lists of column names and values. It is intended for use with the alternate update format, INSERT.

Parameters:

name - column family being operated on

columnNames - list of column names

columnOperations - list of column 'set' operations (corresponds to names)

attrs - additional attributes for statement (CL, timestamp, timeToLive)

Method Detail

validateConsistency

protected void validateConsistency(ConsistencyLevel cl)
                            throws InvalidRequestException

Specified by:

validateConsistency in class ModificationStatement

Throws:

InvalidRequestException

getMutations

public java.util.Collection<IMutation> getMutations(java.util.List<java.nio.ByteBuffer> variables,
                                                    boolean local,
                                                    ConsistencyLevel cl,
                                                    long now)
                                             throws RequestExecutionException,
                                                    RequestValidationException

Convert statement into a list of mutations to apply on the server

Specified by:

getMutations in class ModificationStatement

Parameters:

variables - value for prepared statement markers

local - if true, any requests (for collections) performed by getMutation should be done locally only.

cl - the consistency to use for the potential reads involved in generating the mutations (for lists set/delete operations)

now - the current timestamp in microseconds to use if no timestamp is user provided.

Returns:

list of the mutations

Throws:

InvalidRequestException - on invalid requests

RequestExecutionException

RequestValidationException

prepare

public ParsedStatement.Prepared prepare(ColumnSpecification[] boundNames)
                                 throws InvalidRequestException

Specified by:

prepare in class ModificationStatement

Throws:

InvalidRequestException

prepare

public ParsedStatement.Prepared prepare()
                                 throws InvalidRequestException

Specified by:

prepare in class ParsedStatement

Throws:

InvalidRequestException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object