Package com.orientechnologies.orient.core.sql

Class OCommandExecutorSQLDelegate

java.lang.Object

com.orientechnologies.common.parser.OBaseParser

com.orientechnologies.orient.core.command.OCommandExecutorAbstract

com.orientechnologies.orient.core.sql.OCommandExecutorSQLAbstract

com.orientechnologies.orient.core.sql.OCommandExecutorSQLDelegate

All Implemented Interfaces:

OCommandDistributedReplicateRequest, OCommandExecutor

Direct Known Subclasses:

OCommandExecutorSQLExplain, OCommandExecutorSQLResultsetDelegate, OCommandExecutorSQLTransactional

public class OCommandExecutorSQLDelegate
extends OCommandExecutorSQLAbstract
implements OCommandDistributedReplicateRequest

SQL UPDATE command.

Author:

Luca Garulli (l.garulli--(at)--orientdb.com)

Nested Class Summary

Nested classes/interfaces inherited from interface com.orientechnologies.orient.core.command.OCommandDistributedReplicateRequest

OCommandDistributedReplicateRequest.DISTRIBUTED_EXECUTION_MODE, OCommandDistributedReplicateRequest.DISTRIBUTED_RESULT_MGMT, OCommandDistributedReplicateRequest.QUORUM_TYPE

Field Summary

Fields

Modifier and Type	Field	Description
protected OCommandExecutor	delegate

Fields inherited from class com.orientechnologies.orient.core.sql.OCommandExecutorSQLAbstract

CLASS_PREFIX, CLUSTER_PREFIX, DEFAULT_PARAM_USER, DICTIONARY_PREFIX, INDEX_PREFIX, INDEX_VALUES_ASC_PREFIX, INDEX_VALUES_DESC_PREFIX, INDEX_VALUES_PREFIX, KEYWORD_FROM, KEYWORD_KEY, KEYWORD_LET, KEYWORD_LIMIT, KEYWORD_LOCK, KEYWORD_OFFSET, KEYWORD_RETURN, KEYWORD_RID, KEYWORD_SKIP, KEYWORD_TIMEOUT, KEYWORD_UNSAFE, KEYWORD_WHERE, METADATA_DATABASE, METADATA_DISTRIBUTED, METADATA_INDEXMGR, METADATA_PREFIX, METADATA_SCHEMA, METADATA_STORAGE, preParsedStatement, timeoutMs, timeoutStrategy

Fields inherited from class com.orientechnologies.orient.core.command.OCommandExecutorAbstract

context, limit, parameters, progressListener

Fields inherited from class com.orientechnologies.common.parser.OBaseParser

parserText, parserTextUpperCase

Constructor Summary

Constructors

Constructor	Description
OCommandExecutorSQLDelegate()

Method Summary

Modifier and Type	Method	Description
Object	execute(Map<Object,Object> iArgs)	Execute the requested command parsed previously.
OCommandContext	getContext()
OCommandExecutor	getDelegate()
long	getDistributedTimeout()	Returns the distributed timeout in milliseconds.
String	getFetchPlan()
Set<String>	getInvolvedClusters()	Returns the involved clusters.
OCommandDistributedReplicateRequest.QUORUM_TYPE	getQuorumType()	Returns the quorum type for the command: NONE: no quorum READ: configured Read quorum WRITE: configured Write quorum ALL: all nodes
String	getSyntax()
boolean	isCacheable()	Returns true if the command results can be cached.
boolean	isIdempotent()	Returns true if the command doesn't change the database, otherwise false.
OCommandExecutorSQLDelegate	parse(OCommandRequest iCommand)	Parse the request.
String	toString()

Methods inherited from class com.orientechnologies.orient.core.sql.OCommandExecutorSQLAbstract

bindDefaultContextVariables, checkClusterAccess, decodeClassName, getDistributedExecutionMode, getInvolvedClustersOfClasses, getInvolvedClustersOfClusters, getInvolvedClustersOfIndex, parseLock, parseTimeout, preParse, throwParsingException, throwParsingException, throwSyntaxErrorException

Methods inherited from class com.orientechnologies.orient.core.command.OCommandExecutorAbstract

checkInterruption, checkInterruption, getDatabase, getDistributedResultManagement, getLimit, getParameters, getProgressListener, getSecurityOperationType, getUndoCommand, init, involveSchema, isDistributedExecutingOnLocalNodeFirst, isLocalExecution, mergeResults, setContext, setLimit, setProgressListener

Methods inherited from class com.orientechnologies.common.parser.OBaseParser

getLastWordLength, getWordStatic, nextWord, nextWord, parseOptionalWord, parserGetCurrentChar, parserGetCurrentPosition, parserGetLastSeparator, parserGetLastWord, parserGetPreviousPosition, parserGoBack, parserIsEnded, parserMoveCurrentPosition, parserNextChars, parserNextWord, parserNextWord, parserNextWord, parserOptionalKeyword, parserOptionalWord, parserRequiredKeyword, parserRequiredWord, parserRequiredWord, parserRequiredWord, parserSetCurrentPosition, parserSetEndOfText, parserSetLastSeparator, parserSkipWhiteSpaces

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.orientechnologies.orient.core.command.OCommandDistributedReplicateRequest

getDistributedExecutionMode, getDistributedResultManagement, getUndoCommand, isDistributedExecutingOnLocalNodeFirst

Field Details

delegate

protected OCommandExecutor delegate

Constructor Details

OCommandExecutorSQLDelegate

public OCommandExecutorSQLDelegate()

Method Details

parse

public OCommandExecutorSQLDelegate parse(OCommandRequest iCommand)

Description copied from interface: OCommandExecutor

Parse the request. Once parsed the command can be executed multiple times by using the execute() method.

Specified by:

parse in interface OCommandExecutor

Parameters:

iCommand - Command request implementation.

Returns:

See Also:

• #execute(Map<Object, Object>...)

getDistributedTimeout

public long getDistributedTimeout()

Description copied from interface: OCommandDistributedReplicateRequest

Returns the distributed timeout in milliseconds.

Specified by:

getDistributedTimeout in interface OCommandDistributedReplicateRequest

Specified by:

getDistributedTimeout in interface OCommandExecutor

Overrides:

getDistributedTimeout in class OCommandExecutorAbstract

execute

public Object execute(Map<Object,Object> iArgs)

Description copied from interface: OCommandExecutor

Execute the requested command parsed previously.

Specified by:

execute in interface OCommandExecutor

Parameters:

iArgs - Optional variable arguments to pass to the command.

Returns:

See Also:

• OCommandExecutor.parse(OCommandRequest)

getContext

public OCommandContext getContext()

Specified by:

getContext in interface OCommandExecutor

Overrides:

getContext in class OCommandExecutorAbstract

toString

public String toString()

Overrides:

toString in class OCommandExecutorAbstract

getSyntax

public String getSyntax()

Specified by:

getSyntax in interface OCommandExecutor

Overrides:

getSyntax in class OBaseParser

getFetchPlan

public String getFetchPlan()

Specified by:

getFetchPlan in interface OCommandExecutor

Overrides:

getFetchPlan in class OCommandExecutorAbstract

isIdempotent

public boolean isIdempotent()

Description copied from interface: OCommandExecutor

Returns true if the command doesn't change the database, otherwise false.

Specified by:

isIdempotent in interface OCommandExecutor

Overrides:

isIdempotent in class OCommandExecutorSQLAbstract

getDelegate

public OCommandExecutor getDelegate()

isCacheable

public boolean isCacheable()

Description copied from interface: OCommandExecutor

Returns true if the command results can be cached.

Specified by:

isCacheable in interface OCommandExecutor

Overrides:

isCacheable in class OCommandExecutorAbstract

getQuorumType

public OCommandDistributedReplicateRequest.QUORUM_TYPE getQuorumType()

Description copied from interface: OCommandDistributedReplicateRequest

Returns the quorum type for the command:

• NONE: no quorum
• READ: configured Read quorum
• WRITE: configured Write quorum
• ALL: all nodes

Specified by:

getQuorumType in interface OCommandDistributedReplicateRequest

getInvolvedClusters

public Set<String> getInvolvedClusters()

Description copied from interface: OCommandExecutor

Returns the involved clusters.

Specified by:

getInvolvedClusters in interface OCommandExecutor

Overrides:

getInvolvedClusters in class OCommandExecutorAbstract