Package com.orientechnologies.orient.server.distributed.sql

Class OCommandExecutorSQLHAStatus

java.lang.Object

com.orientechnologies.common.parser.OBaseParser

com.orientechnologies.orient.core.command.OCommandExecutorAbstract

com.orientechnologies.orient.core.sql.OCommandExecutorSQLAbstract

com.orientechnologies.orient.server.distributed.sql.OCommandExecutorSQLHAStatus

All Implemented Interfaces:

OCommandDistributedReplicateRequest, OCommandExecutor

public class OCommandExecutorSQLHAStatus
extends OCommandExecutorSQLAbstract
implements OCommandDistributedReplicateRequest

SQL HA STATUS command: returns the high availability configuration.

Author:

Luca Garulli

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
static final String	KEYWORD_HA
static final String	KEYWORD_STATUS
static final String	NAME

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
OCommandExecutorSQLHAStatus()

Method Summary

Modifier and Type	Method	Description
Object	execute(Map<Object,Object> iArgs)	Execute the command.
OCommandDistributedReplicateRequest.DISTRIBUTED_EXECUTION_MODE	getDistributedExecutionMode()	The command is replicated
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	isIdempotent()	Returns true if the command doesn't change the database, otherwise false.
OCommandExecutorSQLHAStatus	parse(OCommandRequest iRequest)	Parse the request.

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

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

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

checkInterruption, checkInterruption, getContext, getDatabase, getDistributedResultManagement, getDistributedTimeout, getFetchPlan, getInvolvedClusters, getLimit, getParameters, getProgressListener, getSecurityOperationType, getUndoCommand, init, involveSchema, isCacheable, isDistributedExecutingOnLocalNodeFirst, isLocalExecution, mergeResults, setContext, setLimit, setProgressListener, toString

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

getDistributedResultManagement, getDistributedTimeout, getUndoCommand, isDistributedExecutingOnLocalNodeFirst

Field Details

NAME

public static final String NAME

See Also:

• Constant Field Values

KEYWORD_HA

public static final String KEYWORD_HA

See Also:

• Constant Field Values

KEYWORD_STATUS

public static final String KEYWORD_STATUS

See Also:

• Constant Field Values

Constructor Details

OCommandExecutorSQLHAStatus

public OCommandExecutorSQLHAStatus()

Method Details

parse

public OCommandExecutorSQLHAStatus parse(OCommandRequest iRequest)

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:

iRequest - Command request implementation.

Returns:

See Also:

• #execute(Map<Object, Object>...)

execute

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

Execute the command.

Specified by:

execute in interface OCommandExecutor

Parameters:

iArgs - Optional variable arguments to pass to the command.

Returns:

See Also:

• OCommandExecutor.parse(OCommandRequest)

getDistributedExecutionMode

public OCommandDistributedReplicateRequest.DISTRIBUTED_EXECUTION_MODE getDistributedExecutionMode()

Description copied from class: OCommandExecutorSQLAbstract

The command is replicated

Specified by:

getDistributedExecutionMode in interface OCommandDistributedReplicateRequest

Overrides:

getDistributedExecutionMode in class OCommandExecutorSQLAbstract

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

getSyntax

public String getSyntax()

Specified by:

getSyntax in interface OCommandExecutor

Overrides:

getSyntax in class OBaseParser

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