com.orientechnologies.orient.core.sql

Class OCommandExecutorSQLDropClass

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.OCommandExecutorSQLDropClass

All Implemented Interfaces:

OCommandDistributedReplicateRequest, OCommandExecutor

public class OCommandExecutorSQLDropClass
extends OCommandExecutorSQLAbstract
implements OCommandDistributedReplicateRequest

SQL DROP CLASS command: Drops a class from the database. Cluster associated are removed too if are used exclusively by the deleting class.

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 and Description
static String	KEYWORD_CLASS
static String	KEYWORD_DROP
static String	KEYWORD_UNSAFE

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_WHERE, METADATA_DATABASE, 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 and Description
OCommandExecutorSQLDropClass()

Method Summary

Modifier and Type	Method and Description
Object	execute(Map<Object,Object> iArgs) Execute the DROP CLASS.
long	getDistributedTimeout() Returns the distributed timeout in milliseconds.
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	involveSchema()
OCommandExecutorSQLDropClass	parse(OCommandRequest iRequest) Parse the request.

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

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

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

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

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 Detail

KEYWORD_DROP

public static final String KEYWORD_DROP

See Also:

Constant Field Values

KEYWORD_CLASS

public static final String KEYWORD_CLASS

See Also:

Constant Field Values

KEYWORD_UNSAFE

public static final String KEYWORD_UNSAFE

See Also:

Constant Field Values

Constructor Detail

OCommandExecutorSQLDropClass

public OCommandExecutorSQLDropClass()

Method Detail

parse

public OCommandExecutorSQLDropClass 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...)

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

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)

Execute the DROP CLASS.

Specified by:

execute in interface OCommandExecutor

Parameters:

iArgs - Optional variable arguments to pass to the command.

Returns:

See Also:

OCommandExecutor.parse(OCommandRequest)

getSyntax

public String getSyntax()

Specified by:

getSyntax in interface OCommandExecutor

Overrides:

getSyntax in class OBaseParser

involveSchema

public boolean involveSchema()

Specified by:

involveSchema in interface OCommandExecutor

Overrides:

involveSchema in class OCommandExecutorAbstract