Package gudusoft.gsqlparser.nodes.teradata

Class THashByClause

Object

gudusoft.gsqlparser.nodes.TParseTreeNode

gudusoft.gsqlparser.nodes.teradata.THashByClause

All Implemented Interfaces:

Visitable, Iterator<TSourceToken>

public class THashByClause
extends TParseTreeNode

Represents a HASH BY clause in Teradata table function calls.

Syntax: HASH BY column_list | RANDOM

Example:

 FROM TABLE(
   myfunc(...)
   RETURNS (...)
   HASH BY col1, col2
   LOCAL ORDER BY col1, col2
 ) AS t
 

Field Summary

Fields inherited from class gudusoft.gsqlparser.nodes.TParseTreeNode

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

Constructor Summary

Constructors

Constructor	Description
THashByClause()

Method Summary

Modifier and Type	Method	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
TObjectNameList	getColumns()	Gets the list of columns in the HASH BY clause.
void	init(Object arg1)	Initialize a query tree node.
boolean	isRandom()	Returns whether this is a HASH BY RANDOM clause.
void	setColumns(TObjectNameList columns)	Sets the column list for the HASH BY clause.
void	setRandom(boolean random)	Sets whether this is a HASH BY RANDOM clause.

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, 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 java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Constructor Details

THashByClause

public THashByClause()

Method Details

getColumns

public TObjectNameList getColumns()

Gets the list of columns in the HASH BY clause. Returns null if HASH BY RANDOM was specified.

Returns:

the column list, or null if RANDOM

setColumns

public void setColumns(TObjectNameList columns)

Sets the column list for the HASH BY clause.

Parameters:

columns - the column list

isRandom

public boolean isRandom()

Returns whether this is a HASH BY RANDOM clause.

Returns:

true if RANDOM, false if column list

setRandom

public void setRandom(boolean random)

Sets whether this is a HASH BY RANDOM clause.

Parameters:

random - true if RANDOM

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

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