org.apache.cassandra.cql3.statements

Class ModificationStatement

java.lang.Object

org.apache.cassandra.cql3.statements.ModificationStatement

All Implemented Interfaces:

CQLStatement

Direct Known Subclasses:

DeleteStatement, UpdateStatement

public abstract class ModificationStatement
extends java.lang.Object
implements CQLStatement

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ModificationStatement.Parsed

Field Summary

Fields

Modifier and Type	Field and Description
CFMetaData	cfm

Constructor Summary

Constructors

Constructor and Description
ModificationStatement(int boundTerms, CFMetaData cfm, Attributes attrs)

Method Summary

Methods

Modifier and Type	Method and Description
void	addCondition(Operation op)
void	addKeyValue(ColumnIdentifier name, Term value)
void	addOperation(Operation op)
void	checkAccess(ClientState state) Perform any access verification necessary for the statement.
java.lang.String	columnFamily()
ResultMessage	execute(ConsistencyLevel cl, QueryState queryState, java.util.List<java.nio.ByteBuffer> variables, int pageSize, PagingState pagingState) Execute the statement and return the resulting result or null if there is no result.
ResultMessage	executeInternal(QueryState queryState) Variante of execute used for internal query against the system tables, and thus only query the local node.
ResultMessage	executeWithCondition(ConsistencyLevel cl, QueryState queryState, java.util.List<java.nio.ByteBuffer> variables)
int	getBoundsTerms() Returns the number of bound terms in this statement.
protected CFDefinition.Name	getFirstEmptyKey()
java.util.Collection<? extends IMutation>	getMutations(java.util.List<java.nio.ByteBuffer> variables, boolean local, ConsistencyLevel cl, long now, boolean isBatch) Convert statement into a list of mutations to apply on the server
java.util.List<Operation>	getOperations()
long	getTimestamp(long now, java.util.List<java.nio.ByteBuffer> variables)
int	getTimeToLive(java.util.List<java.nio.ByteBuffer> variables)
boolean	hasConditions()
boolean	isCounter()
boolean	isTimestampSet()
java.lang.String	keyspace()
void	processWhereClause(java.util.List<Relation> whereClause, ColumnSpecification[] names)
protected java.util.Map<java.nio.ByteBuffer,ColumnGroupMap>	readRequiredRows(java.util.List<java.nio.ByteBuffer> partitionKeys, ColumnNameBuilder clusteringPrefix, boolean local, ConsistencyLevel cl)
protected abstract boolean	requireFullClusteringKey()
void	setIfNotExistCondition()
abstract ColumnFamily	updateForKey(java.nio.ByteBuffer key, ColumnNameBuilder builder, UpdateParameters params)
void	validate(ClientState state) Perform additional validation required by the statment.

Methods inherited from class java.lang.Object

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

Field Detail

cfm

public final CFMetaData cfm

Constructor Detail

ModificationStatement

public ModificationStatement(int boundTerms,
                     CFMetaData cfm,
                     Attributes attrs)

Method Detail

requireFullClusteringKey

protected abstract boolean requireFullClusteringKey()

updateForKey

public abstract ColumnFamily updateForKey(java.nio.ByteBuffer key,
                        ColumnNameBuilder builder,
                        UpdateParameters params)
                                   throws InvalidRequestException

Throws:

InvalidRequestException

getBoundsTerms

public int getBoundsTerms()

Description copied from interface: CQLStatement

Returns the number of bound terms in this statement.

Specified by:

getBoundsTerms in interface CQLStatement

keyspace

public java.lang.String keyspace()

columnFamily

public java.lang.String columnFamily()

isCounter

public boolean isCounter()

getTimestamp

public long getTimestamp(long now,
                java.util.List<java.nio.ByteBuffer> variables)
                  throws InvalidRequestException

Throws:

InvalidRequestException

isTimestampSet

public boolean isTimestampSet()

getTimeToLive

public int getTimeToLive(java.util.List<java.nio.ByteBuffer> variables)
                  throws InvalidRequestException

Throws:

InvalidRequestException

checkAccess

public void checkAccess(ClientState state)
                 throws InvalidRequestException,
                        UnauthorizedException

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

Throws:

InvalidRequestException

UnauthorizedException

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

addOperation

public void addOperation(Operation op)

getOperations

public java.util.List<Operation> getOperations()

addCondition

public void addCondition(Operation op)

setIfNotExistCondition

public void setIfNotExistCondition()

addKeyValue

public void addKeyValue(ColumnIdentifier name,
               Term value)
                 throws InvalidRequestException

Throws:

InvalidRequestException

processWhereClause

public void processWhereClause(java.util.List<Relation> whereClause,
                      ColumnSpecification[] names)
                        throws InvalidRequestException

Throws:

InvalidRequestException

getFirstEmptyKey

protected CFDefinition.Name getFirstEmptyKey()

readRequiredRows

protected java.util.Map<java.nio.ByteBuffer,ColumnGroupMap> readRequiredRows(java.util.List<java.nio.ByteBuffer> partitionKeys,
                                                                 ColumnNameBuilder clusteringPrefix,
                                                                 boolean local,
                                                                 ConsistencyLevel cl)
                                                                      throws RequestExecutionException,
                                                                             RequestValidationException

Throws:

RequestExecutionException

RequestValidationException

hasConditions

public boolean hasConditions()

execute

public ResultMessage execute(ConsistencyLevel cl,
                    QueryState queryState,
                    java.util.List<java.nio.ByteBuffer> variables,
                    int pageSize,
                    PagingState pagingState)
                      throws RequestExecutionException,
                             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

Parameters:

cl - the consistency level for the query

queryState - the current query state

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

pageSize - the initial page size for the result set potentially returned. A negative value means no paging needs to be done. Statements that do not return result sets can ignore this value.

pagingState - the paging state for paged query. All statement except Select should ignore that value.

Throws:

RequestExecutionException

RequestValidationException

executeWithCondition

public ResultMessage executeWithCondition(ConsistencyLevel cl,
                                 QueryState queryState,
                                 java.util.List<java.nio.ByteBuffer> variables)
                                   throws RequestExecutionException,
                                          RequestValidationException

Throws:

RequestExecutionException

RequestValidationException

executeInternal

public ResultMessage executeInternal(QueryState queryState)
                              throws RequestValidationException,
                                     RequestExecutionException

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:

queryState - the current query state

Throws:

RequestValidationException

RequestExecutionException

getMutations

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

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

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