Package com.alibaba.druid.sql.ast.statement

Class SQLSelectItem

java.lang.Object

com.alibaba.druid.sql.ast.SQLObjectImpl

com.alibaba.druid.sql.ast.expr.SQLAliasedExpr

com.alibaba.druid.sql.ast.statement.SQLSelectItem

All Implemented Interfaces:

SQLObject, SQLReplaceable

Direct Known Subclasses:

OdpsUDTFSQLSelectItem

public class SQLSelectItem
extends SQLAliasedExpr
implements SQLReplaceable

Field Summary

Fields

Modifier and Type	Field	Description
protected long	aliasHashCode64
protected List<String>	aliasList
protected boolean	connectByRoot

Fields inherited from class com.alibaba.druid.sql.ast.expr.SQLAliasedExpr

alias, expr

Fields inherited from class com.alibaba.druid.sql.ast.SQLObjectImpl

attributes, hint, parent, sourceColumn, sourceLine

Constructor Summary

Constructors

Constructor	Description
SQLSelectItem()
SQLSelectItem(int value)
SQLSelectItem(SQLExpr expr)
SQLSelectItem(SQLExpr expr, String alias)
SQLSelectItem(SQLExpr expr, String alias, boolean connectByRoot)
SQLSelectItem(SQLExpr expr, List<String> aliasList, boolean connectByRoot)

Method Summary

Modifier and Type	Method	Description
protected void	accept0(SQLASTVisitor v)
long	alias_hash()
SQLSelectItem	clone()
protected void	cloneTo(SQLSelectItem x)
boolean	equals(Object o)
List<String>	getAliasList()
int	hashCode()
boolean	isConnectByRoot()
boolean	isUDTFSelectItem()
boolean	match(long alias_hash)
boolean	match(String alias)
void	output(StringBuilder buf)
void	setConnectByRoot(boolean connectByRoot)
String	toString()

Methods inherited from class com.alibaba.druid.sql.ast.expr.SQLAliasedExpr

cloneTo, computeAlias, computeDataType, getAlias, getAlias2, getExpr, replace, setAlias, setExpr

Methods inherited from class com.alibaba.druid.sql.ast.SQLObjectImpl

accept, acceptChild, acceptChild, addAfterComment, addAfterComment, addBeforeComment, addBeforeComment, cloneTo, containsAttribute, getAfterCommentsDirect, getAttribute, getAttributes, getAttributesDirect, getBeforeCommentsDirect, getHint, getParent, getSourceColumn, getSourceLine, hasAfterComment, hasBeforeComment, putAttribute, setHint, setParent, setSource, setSourceLine

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.alibaba.druid.sql.ast.SQLReplaceable

replace

Field Details

connectByRoot

protected boolean connectByRoot

aliasHashCode64

protected transient long aliasHashCode64

aliasList

protected List<String> aliasList

Constructor Details

SQLSelectItem

public SQLSelectItem()

SQLSelectItem

public SQLSelectItem(SQLExpr expr)

SQLSelectItem

public SQLSelectItem(int value)

SQLSelectItem

public SQLSelectItem(SQLExpr expr,
 String alias)

SQLSelectItem

public SQLSelectItem(SQLExpr expr,
 String alias,
 boolean connectByRoot)

SQLSelectItem

public SQLSelectItem(SQLExpr expr,
 List<String> aliasList,
 boolean connectByRoot)

Method Details

output

public void output(StringBuilder buf)

Specified by:

output in interface SQLObject

Overrides:

output in class SQLObjectImpl

accept0

protected void accept0(SQLASTVisitor v)

Overrides:

accept0 in class SQLAliasedExpr

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

isConnectByRoot

public boolean isConnectByRoot()

setConnectByRoot

public void setConnectByRoot(boolean connectByRoot)

clone

public SQLSelectItem clone()

Specified by:

clone in interface SQLObject

Overrides:

clone in class SQLAliasedExpr

cloneTo

protected void cloneTo(SQLSelectItem x)

match

public boolean match(String alias)

alias_hash

public long alias_hash()

match

public boolean match(long alias_hash)

getAliasList

public List<String> getAliasList()

toString

public String toString()

Overrides:

toString in class SQLObjectImpl

isUDTFSelectItem

public boolean isUDTFSelectItem()