Package org.h2.command
Class CommandList
java.lang.Object
org.h2.command.Command
org.h2.command.CommandList
- All Implemented Interfaces:
AutoCloseable
,CommandInterface
Represents a list of SQL statements.
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Field Summary
FieldsFields inherited from class org.h2.command.Command
session, startTimeNanos
Fields inherited from interface org.h2.command.CommandInterface
ALTER_DOMAIN_ADD_CONSTRAINT, ALTER_DOMAIN_DEFAULT, ALTER_DOMAIN_DROP_CONSTRAINT, ALTER_DOMAIN_ON_UPDATE, ALTER_DOMAIN_RENAME, ALTER_DOMAIN_RENAME_CONSTRAINT, ALTER_INDEX_RENAME, ALTER_SCHEMA_RENAME, ALTER_SEQUENCE, ALTER_TABLE_ADD_COLUMN, ALTER_TABLE_ADD_CONSTRAINT_CHECK, ALTER_TABLE_ADD_CONSTRAINT_PRIMARY_KEY, ALTER_TABLE_ADD_CONSTRAINT_REFERENTIAL, ALTER_TABLE_ADD_CONSTRAINT_UNIQUE, ALTER_TABLE_ALTER_COLUMN_CHANGE_TYPE, ALTER_TABLE_ALTER_COLUMN_DEFAULT, ALTER_TABLE_ALTER_COLUMN_DEFAULT_ON_NULL, ALTER_TABLE_ALTER_COLUMN_DROP_EXPRESSION, ALTER_TABLE_ALTER_COLUMN_DROP_IDENTITY, ALTER_TABLE_ALTER_COLUMN_DROP_NOT_NULL, ALTER_TABLE_ALTER_COLUMN_NOT_NULL, ALTER_TABLE_ALTER_COLUMN_ON_UPDATE, ALTER_TABLE_ALTER_COLUMN_RENAME, ALTER_TABLE_ALTER_COLUMN_SELECTIVITY, ALTER_TABLE_ALTER_COLUMN_VISIBILITY, ALTER_TABLE_DROP_COLUMN, ALTER_TABLE_DROP_CONSTRAINT, ALTER_TABLE_RENAME, ALTER_TABLE_RENAME_CONSTRAINT, ALTER_TABLE_SET_REFERENTIAL_INTEGRITY, ALTER_USER_ADMIN, ALTER_USER_RENAME, ALTER_USER_SET_PASSWORD, ALTER_VIEW, ANALYZE, BACKUP, BEGIN, CALL, CHECKPOINT, CHECKPOINT_SYNC, COMMENT, COMMIT, COMMIT_TRANSACTION, CREATE_AGGREGATE, CREATE_ALIAS, CREATE_CONSTANT, CREATE_DOMAIN, CREATE_INDEX, CREATE_LINKED_TABLE, CREATE_ROLE, CREATE_SCHEMA, CREATE_SEQUENCE, CREATE_SYNONYM, CREATE_TABLE, CREATE_TRIGGER, CREATE_USER, CREATE_VIEW, DEALLOCATE, DELETE, DROP_AGGREGATE, DROP_ALIAS, DROP_ALL_OBJECTS, DROP_CONSTANT, DROP_DOMAIN, DROP_INDEX, DROP_ROLE, DROP_SCHEMA, DROP_SEQUENCE, DROP_SYNONYM, DROP_TABLE, DROP_TRIGGER, DROP_USER, DROP_VIEW, EXECUTE, EXECUTE_IMMEDIATELY, EXPLAIN, EXPLAIN_ANALYZE, GRANT, HELP, INSERT, MERGE, NO_OPERATION, PREPARE, PREPARE_COMMIT, REPLACE, REVOKE, ROLLBACK, ROLLBACK_TO_SAVEPOINT, ROLLBACK_TRANSACTION, RUNSCRIPT, SAVEPOINT, SCRIPT, SELECT, SET, SET_AUTOCOMMIT_FALSE, SET_AUTOCOMMIT_TRUE, SHUTDOWN, SHUTDOWN_COMPACT, SHUTDOWN_DEFRAG, SHUTDOWN_IMMEDIATELY, TRUNCATE_TABLE, UNKNOWN, UPDATE
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Constructor Summary
ConstructorsConstructorDescriptionCommandList
(SessionLocal session, String sql, CommandContainer command, ArrayList<Prepared> commands, ArrayList<Parameter> parameters, String remaining) -
Method Summary
Modifier and TypeMethodDescriptionprivate void
int
Get command type.ArrayList
<? extends ParameterInterface> Get the list of parameters.protected boolean
Is the command we just tried to execute a DefineCommand (i.e.boolean
isQuery()
Check if this command is a query.boolean
Check if this command is read only.boolean
Check if this command is transactional.query
(long maxrows) Execute a query statement, if this is possible.Get an empty result set containing the meta data.void
stop()
Stop the command execution, release all locks and resourcesExecute an updating statement (for example insert, delete, or update), if this is possible.Methods inherited from class org.h2.command.Command
cancel, canReuse, checkCanceled, close, executeQuery, executeUpdate, getMetaData, isCacheable, reuse, setCanReuse, setProgress, start, toString
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Field Details
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command
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commands
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parameters
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remaining
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remainingCommand
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Constructor Details
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CommandList
CommandList(SessionLocal session, String sql, CommandContainer command, ArrayList<Prepared> commands, ArrayList<Parameter> parameters, String remaining)
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Method Details
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getParameters
Description copied from class:Command
Get the list of parameters.- Specified by:
getParameters
in interfaceCommandInterface
- Specified by:
getParameters
in classCommand
- Returns:
- the list of parameters
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executeRemaining
private void executeRemaining() -
update
Description copied from class:Command
Execute an updating statement (for example insert, delete, or update), if this is possible.- Specified by:
update
in classCommand
- Parameters:
generatedKeysRequest
-false
if generated keys are not needed,true
if generated keys should be configured automatically,int[]
to specify column indices to return generated keys from, orString[]
to specify column names to return generated keys from- Returns:
- the update count and generated keys, if any
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query
Description copied from class:Command
Execute a query statement, if this is possible. -
stop
public void stop()Description copied from interface:CommandInterface
Stop the command execution, release all locks and resources- Specified by:
stop
in interfaceCommandInterface
- Overrides:
stop
in classCommand
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isQuery
public boolean isQuery()Description copied from class:Command
Check if this command is a query.- Specified by:
isQuery
in interfaceCommandInterface
- Specified by:
isQuery
in classCommand
- Returns:
- true if it is
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isTransactional
public boolean isTransactional()Description copied from class:Command
Check if this command is transactional. If it is not, then it forces the current transaction to commit.- Specified by:
isTransactional
in classCommand
- Returns:
- true if it is
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isReadOnly
public boolean isReadOnly()Description copied from class:Command
Check if this command is read only.- Specified by:
isReadOnly
in classCommand
- Returns:
- true if it is
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queryMeta
Description copied from class:Command
Get an empty result set containing the meta data. -
getCommandType
public int getCommandType()Description copied from interface:CommandInterface
Get command type.- Returns:
- one of the constants above
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getDependencies
- Specified by:
getDependencies
in classCommand
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isCurrentCommandADefineCommand
protected boolean isCurrentCommandADefineCommand()Description copied from class:Command
Is the command we just tried to execute a DefineCommand (i.e. DDL).- Specified by:
isCurrentCommandADefineCommand
in classCommand
- Returns:
- true if yes
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