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

Class SQLSelectItem

java.lang.Object

com.alibaba.druid.sql.ast.SQLObjectImpl

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

All Implemented Interfaces:

SQLObject, SQLReplaceable

Direct Known Subclasses:

OdpsUDTFSQLSelectItem

public class SQLSelectItem
extends SQLObjectImpl
implements SQLReplaceable

Field Summary

Fields

Modifier and Type	Field	Description
protected String	alias
protected long	aliasHashCode64
protected List<String>	aliasList
protected boolean	connectByRoot
protected SQLExpr	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()
String	computeAlias()
SQLDataType	computeDataType()
boolean	equals(Object o)
String	getAlias()
String	getAlias2()
List<String>	getAliasList()
SQLExpr	getExpr()
int	hashCode()
boolean	isConnectByRoot()
boolean	isUDTFSelectItem()
boolean	match(long alias_hash)
boolean	match(String alias)
void	output(StringBuilder buf)
boolean	replace(SQLExpr expr, SQLExpr target)
void	setAlias(String alias)
void	setConnectByRoot(boolean connectByRoot)
void	setExpr(SQLExpr expr)
String	toString()

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

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

Methods inherited from class java.lang.Object

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

Field Details

expr

protected SQLExpr expr

alias

protected String alias

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

getExpr

public SQLExpr getExpr()

setExpr

public void setExpr(SQLExpr expr)

computeAlias

public String computeAlias()

computeDataType

public SQLDataType computeDataType()

Overrides:

computeDataType in class SQLObjectImpl

getAlias

public String getAlias()

getAlias2

public String getAlias2()

setAlias

public void setAlias(String alias)

output

public void output(StringBuilder buf)

Specified by:

output in interface SQLObject

Overrides:

output in class SQLObjectImpl

accept0

protected void accept0(SQLASTVisitor v)

Specified by:

accept0 in class SQLObjectImpl

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 SQLObjectImpl

replace

public boolean replace(SQLExpr expr,
 SQLExpr target)

Specified by:

replace in interface SQLReplaceable

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()