gudusoft.gsqlparser.nodes

Class TFlashback

Object

gudusoft.gsqlparser.nodes.TParseTreeNode

gudusoft.gsqlparser.nodes.TFlashback

All Implemented Interfaces:

Visitable, Iterator<TSourceToken>

public class TFlashback
extends TParseTreeNode

Field Summary

Fields inherited from class gudusoft.gsqlparser.nodes.TParseTreeNode

dbvendor, doubleLinkedTokenListToString, nodeActionAppend, nodeActionInsert, nodeActionRemove, nodeActionUnknown, nodeActionUpdate, nodeActionUpdateText, nodeChangeEndToken, nodeChangeStartToken

Constructor Summary

Constructors

Constructor and Description
TFlashback()

Method Summary

Modifier and Type	Method and Description
void	accept(TParseTreeVisitor v) Accept a visitor
void	acceptChildren(TParseTreeVisitor v) Accept a visitor to iterate this class and sub-nodes of this class
TExpression	getExpr()
TAliasClause	getTmpAlias()
void	init(Object arg1) Initialize a query tree node.
void	init(Object arg1, Object arg2)
boolean	isVersionsQuery() True when this is a flashback version query (VERSIONS BETWEEN ...) rather than a point-in-time query (AS OF ...).
void	setTmpAlias(TAliasClause alias)
void	setVersionsQuery(boolean versionsQuery)

Methods inherited from class gudusoft.gsqlparser.nodes.TParseTreeNode

addAllMyTokensToTokenList, addToTokenChain, appendNewNode, calculateTokenCount, doAppendNewNode, doParse, fastSetString, getAnchorNode, getColumnNo, getCommentAfterNode, getCommentBeforeNode, getCompactString, getDummyTag, getEndToken, getEvaluateDatatype, getEvalValue, getGsqlparser, getLineNo, getLocation, getMd5, getNodeStatus, getNodeType, getParentObjectName, getPlainText, getStartToken, getTokenCount, hasNext, init, init, init, init, init, init, init, init, insertAfterAToken, insertNewNodeBeforeMe, isChanged, isTokensInChain, next, refreshAllNodesTokenCount, remove, removeAllMyTokensFromTokenList, removeTokens, removeTokensBetweenNodes, removeTokensBetweenToken, replaceWithNewNode, resetIterator, setAnchorNode, setChanged, setDummyTag, setEndToken, setEndToken, setEndToken, setEndToken, setEndToken, setEndTokenDirectly, setEvaluateDatatype, setEvalValue, setGsqlparser, setIncludingComment, setLocation, setNewSubNode, setNodeStatus, setNodeType, setParent, setPlainText, setStartToken, setStartToken, setStartToken, setStartToken, setStartTokenDirectly, setString, setString2, subNodeInNode, toScript, toString, toString2

Methods inherited from class Object

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

Methods inherited from interface Iterator

forEachRemaining

Constructor Detail

TFlashback

public TFlashback()

Method Detail

init

public void init(Object arg1)

Description copied from class: TParseTreeNode

Initialize a query tree node. Used internally

Overrides:

init in class TParseTreeNode

Parameters:

arg1 - first argument

init

public void init(Object arg1,
                 Object arg2)

Overrides:

init in class TParseTreeNode

isVersionsQuery

public boolean isVersionsQuery()

True when this is a flashback version query (VERSIONS BETWEEN ...) rather than a point-in-time query (AS OF ...).

The distinction matters because the VERSIONS_STARTSCN, VERSIONS_STARTTIME, VERSIONS_ENDSCN, VERSIONS_ENDTIME, VERSIONS_XID and VERSIONS_OPERATION pseudocolumns are only available under a version query. Under AS OF those names are ordinary identifiers.

Returns:

true for a VERSIONS clause

setVersionsQuery

public void setVersionsQuery(boolean versionsQuery)

getExpr

public TExpression getExpr()

getTmpAlias

public TAliasClause getTmpAlias()

setTmpAlias

public void setTmpAlias(TAliasClause alias)

accept

public void accept(TParseTreeVisitor v)

Description copied from class: TParseTreeNode

Accept a visitor

Specified by:

accept in interface Visitable

Overrides:

accept in class TParseTreeNode

Parameters:

v - visitor is a descendant class of TParseTreeVisitor

acceptChildren

public void acceptChildren(TParseTreeVisitor v)

Description copied from class: TParseTreeNode

Accept a visitor to iterate this class and sub-nodes of this class

Specified by:

acceptChildren in interface Visitable

Overrides:

acceptChildren in class TParseTreeNode

Parameters:

v - visitor is a descendant class of TParseTreeVisitor