Class CreateSequenceNode

java.lang.Object

org.apache.derby.impl.sql.compile.QueryTreeNode

org.apache.derby.impl.sql.compile.StatementNode

org.apache.derby.impl.sql.compile.DDLStatementNode

org.apache.derby.impl.sql.compile.CreateSequenceNode

All Implemented Interfaces:

Visitable

class CreateSequenceNode
extends DDLStatementNode

A CreateSequenceNode is the root of a QueryTree that represents a CREATE SEQUENCE statement.

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	_cycle
private DataTypeDescriptor	_dataType
private Long	_initialValue
private Long	_maxValue
private Long	_minValue
private TableName	_sequenceName
private Long	_stepValue
static final int	SEQUENCE_ELEMENT_COUNT

Fields inherited from class DDLStatementNode

ADD_TYPE, DROP_STATISTICS, DROP_TYPE, implicitCreateSchema, LOCKING_TYPE, MODIFY_TYPE, UNKNOWN_TYPE, UPDATE_STATISTICS

Fields inherited from class StatementNode

EMPTY_TD_LIST, NEED_CURSOR_ACTIVATION, NEED_DDL_ACTIVATION, NEED_NOTHING_ACTIVATION, NEED_PARAM_ACTIVATION, NEED_ROW_ACTIVATION

Fields inherited from class QueryTreeNode

AUTOINCREMENT_CREATE_MODIFY, AUTOINCREMENT_CYCLE, AUTOINCREMENT_INC_INDEX, AUTOINCREMENT_IS_AUTOINCREMENT_INDEX, AUTOINCREMENT_START_INDEX

Constructor Summary

Constructors

Constructor	Description
CreateSequenceNode(TableName sequenceName, DataTypeDescriptor dataType, Long initialValue, Long stepValue, Long maxValue, Long minValue, boolean cycle, ContextManager cm)	Constructor for a CreateSequenceNode

Method Summary

Modifier and Type	Method	Description
(package private) void	acceptChildren(Visitor v)	Accept a visitor on all child nodes.
void	bindStatement()	Bind this CreateSequenceNode.
ConstantAction	makeConstantAction()	Create the Constant information that will drive the guts of Execution.
String	statementToString()
String	toString()	Convert this object to a String.

Methods inherited from class DDLStatementNode

activationKind, generate, getFullName, getObjectName, getRelativeName, getSchemaDescriptor, getSchemaDescriptor, getTableDescriptor, getTableDescriptor, getTableDescriptor, getTableDescriptor, initAndCheck, isAtomic, makeFromList

Methods inherited from class StatementNode

executeSchemaName, executeStatementName, generate, getCursorInfo, getSPSName, lockTableForCompilation, makeResultDescription, needsSavepoint, optimizeStatement, updateIndexStatisticsFor

Methods inherited from class QueryTreeNode

accept, addTag, addUDTUsagePriv, addUDTUsagePriv, bindOffsetFetch, bindRowMultiSet, bindUserCatalogType, bindUserType, checkReliability, checkReliability, convertDefaultNode, copyTagsFrom, createTypeDependency, debugFlush, debugPrint, disablePrivilegeCollection, formatNodeString, generateAuthorizeCheck, getBeginOffset, getClassFactory, getCompilerContext, getContext, getContextManager, getDataDictionary, getDependencyManager, getEndOffset, getExecutionFactory, getGenericConstantActionFactory, getIntProperty, getLanguageConnectionContext, getLongProperty, getNullNode, getOffsetOrderedNodes, getOptimizerFactory, getOptimizerTracer, getParameterTypes, getSchemaDescriptor, getSchemaDescriptor, getStatementType, getTableDescriptor, getTypeCompiler, getUDTDesc, isPrivilegeCollectionRequired, isSessionSchema, isSessionSchema, makeTableName, makeTableName, nodeHeader, optimizerTracingIsOn, orReliability, parseSearchCondition, parseStatement, printLabel, printSubNodes, referencesSessionSchema, resolveTableToSynonym, setBeginOffset, setEndOffset, setRefActionInfo, stackPrint, taggedWith, treePrint, treePrint, verifyClassExist

Methods inherited from class Object

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

Field Details

_sequenceName

private TableName _sequenceName

_dataType

private DataTypeDescriptor _dataType

_initialValue

private Long _initialValue

_stepValue

private Long _stepValue

_maxValue

private Long _maxValue

_minValue

private Long _minValue

_cycle

private boolean _cycle

SEQUENCE_ELEMENT_COUNT

public static final int SEQUENCE_ELEMENT_COUNT

See Also:

• Constant Field Values

Constructor Details

CreateSequenceNode

CreateSequenceNode(TableName sequenceName,
 DataTypeDescriptor dataType,
 Long initialValue,
 Long stepValue,
 Long maxValue,
 Long minValue,
 boolean cycle,
 ContextManager cm)
            throws StandardException

Constructor for a CreateSequenceNode

Parameters:

sequenceName - The name of the new sequence

dataType - Exact numeric type of the new sequence

initialValue - Starting value

stepValue - Increment amount

maxValue - Largest value returned by the sequence generator

minValue - Smallest value returned by the sequence generator

cycle - True if the generator should wrap around, false otherwise

cm - Context manager

Throws:

StandardException - on error

Method Details

toString

public String toString()

Convert this object to a String. See comments in QueryTreeNode.java for how this should be done for tree printing.

Overrides:

toString in class DDLStatementNode

Returns:

This object as a String

bindStatement

public void bindStatement()
                   throws StandardException

Bind this CreateSequenceNode. The main objectives of this method are to resolve the schema name, determine privilege checks, and vet the variables in the CREATE SEQUENCE statement.

Overrides:

bindStatement in class StatementNode

Throws:

StandardException - Thrown on error

statementToString

public String statementToString()

Specified by:

statementToString in class StatementNode

makeConstantAction

public ConstantAction makeConstantAction()

Create the Constant information that will drive the guts of Execution.

Overrides:

makeConstantAction in class QueryTreeNode

Throws:

StandardException - Thrown on failure

acceptChildren

void acceptChildren(Visitor v)
             throws StandardException

Description copied from class: QueryTreeNode

Accept a visitor on all child nodes. All sub-classes that add fields that should be visited, should override this method and call accept(v) on all visitable fields, as well as super.acceptChildren(v) to make sure all visitable fields defined by the super-class are accepted too.

Overrides:

acceptChildren in class DDLStatementNode

Parameters:

v - the visitor

Throws:

StandardException - on errors raised by the visitor