Package com.exasol.adapter.sql

Class SqlSelectList

java.lang.Object

com.exasol.adapter.sql.SqlNode

com.exasol.adapter.sql.SqlExpressionList

com.exasol.adapter.sql.SqlSelectList

public final class SqlSelectList
extends SqlExpressionList

Method Summary

Modifier and Type	Method	Description
<R> R	accept(SqlNodeVisitor<R> visitor)	See SqlNodeVisitor
static SqlSelectList	createAnyValueSelectList()	Creates a SqlSelectList that uses an arbitrary value.
static SqlSelectList	createRegularSelectList(List<SqlNode> selectList)	Creates a regular SqlSelectList.
static SqlSelectList	createSelectStarSelectList()	Creates a SqlSelectList for SELECT *.
SqlNodeType	getType()
boolean	isRequestAnyColumn()
boolean	isSelectStar()
String	toSimpleSql()

Methods inherited from class java.lang.Object

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

Methods inherited from class com.exasol.adapter.sql.SqlExpressionList

getExpressions

Methods inherited from class com.exasol.adapter.sql.SqlNode

getParent, hasParent, setParent

Method Detail

createSelectStarSelectList

public static SqlSelectList createSelectStarSelectList()

Creates a SqlSelectList for SELECT *. See SqlSelectListType.SELECT_STAR.

Returns:

the new SqlSelectList.

createAnyValueSelectList

public static SqlSelectList createAnyValueSelectList()

Creates a SqlSelectList that uses an arbitrary value. See SqlSelectListType.ANY_VALUE.

Returns:

the new SqlSelectList.

createRegularSelectList

public static SqlSelectList createRegularSelectList(List<SqlNode> selectList)

Creates a regular SqlSelectList. See SqlSelectListType.REGULAR.

Parameters:

selectList - The selectList needs at least one element.

Returns:

the new SqlSelectList.

isRequestAnyColumn

public boolean isRequestAnyColumn()

isSelectStar

public boolean isSelectStar()

Returns:

true if this is "SELECT *", false otherwise

getType

public SqlNodeType getType()

Specified by:

getType in class SqlNode

toSimpleSql

public String toSimpleSql()

Returns:

A SQL representation of the current graph, using EXASOL SQL syntax. It is called "SIMPLE" because it is not guaranteed to be 100 % correct SQL (e.g. might be ambiguous).

accept

public <R> R accept(SqlNodeVisitor<R> visitor)
             throws AdapterException

Description copied from class: SqlNode

See SqlNodeVisitor

Specified by:

accept in class SqlNode

Type Parameters:

R - generic SqlNodeVisitor type

Parameters:

visitor - The visitor object on which the appropriate visit(sqlNode) method is called

Returns:

visited object

Throws:

AdapterException - can be thrown