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

Constructor Summary

Constructors

Constructor and Description
SQLSelectItem()
SQLSelectItem(SQLExpr expr)
SQLSelectItem(SQLExpr expr, String alias)
SQLSelectItem(SQLExpr expr, String alias, boolean connectByRoot)

Method Summary

Modifier and Type	Method and Description
long	alias_hash()
SQLSelectItem	clone()
String	computeAlias()
SQLDataType	computeDataType()
boolean	equals(Object obj)
String	getAlias()
SQLExpr	getExpr()
int	hashCode()
boolean	isConnectByRoot()
boolean	match(long alias_hash)
boolean	match(String alias)
void	output(StringBuffer 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, addAfterComment, addAfterComment, addBeforeComment, addBeforeComment, getAfterCommentsDirect, getAttribute, getAttributes, getAttributesDirect, getBeforeCommentsDirect, getParent, hasAfterComment, hasBeforeComment, putAttribute, setParent

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SQLSelectItem

public SQLSelectItem()

SQLSelectItem

public SQLSelectItem(SQLExpr expr)

SQLSelectItem

public SQLSelectItem(SQLExpr expr,
                     String alias)

SQLSelectItem

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

Method Detail

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()

setAlias

public void setAlias(String alias)

output

public void output(StringBuffer buf)

Specified by:

output in interface SQLObject

Overrides:

output in class SQLObjectImpl

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals 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)

toString

public String toString()

Overrides:

toString in class SQLObjectImpl