com.exasol.sql.dql

Class FromClause

java.lang.Object

com.exasol.sql.AbstractFragment

com.exasol.sql.dql.FromClause

All Implemented Interfaces:

SelectFragment, Fragment

public class FromClause
extends AbstractFragment
implements SelectFragment

This class represents the FROM clause of an SQL SELECT statement.

Constructor Summary

Constructors

Constructor and Description
FromClause(Fragment root) Create a new instance of a FromClause

Method Summary

Modifier and Type	Method and Description
void	accept(SelectVisitor visitor) Accept a visitor (e.g.
FromClause	fullJoin(String name, String specification) Create a new full Join that belongs to a FROM clause
FromClause	fullOuterJoin(String name, String specification) Create a new full outer Join that belongs to a FROM clause
FromClause	innerJoin(String name, String specification) Create a new inner Join that belongs to a FROM clause
FromClause	join(String name, String specification) Create a new Join that belongs to a FROM clause
FromClause	leftJoin(String name, String specification) Create a new left Join that belongs to a FROM clause
FromClause	leftOuterJoin(String name, String specification) Create a new left outer Join that belongs to a FROM clause
FromClause	rightJoin(String name, String specification) Create a new right Join that belongs to a FROM clause
FromClause	rightOuterJoin(String name, String specification) Create a new right outer Join that belongs to a FROM clause
FromClause	table(String name) Create a FromClause from a table name
FromClause	tableAs(String name, String as) Create a FromClause from a table name and an alias

Methods inherited from class com.exasol.sql.AbstractFragment

getRoot

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.exasol.sql.Fragment

getRoot

Constructor Detail

FromClause

public FromClause(Fragment root)

Create a new instance of a FromClause

Parameters:

root - root SQL statement this FROM clause belongs to

Method Detail

table

public FromClause table(String name)

Create a FromClause from a table name

Parameters:

name - table name

Returns:

new instance

tableAs

public FromClause tableAs(String name,
                          String as)

Create a FromClause from a table name and an alias

Parameters:

name - table name

as - table alias

Returns:

new instance

join

public FromClause join(String name,
                       String specification)

Create a new Join that belongs to a FROM clause

Parameters:

name - name of the table to be joined

specification - join conditions

Returns:

parent FROM clause

innerJoin

public FromClause innerJoin(String name,
                            String specification)

Create a new inner Join that belongs to a FROM clause

Parameters:

name - name of the table to be joined

specification - join conditions

Returns:

parent FROM clause

leftJoin

public FromClause leftJoin(String name,
                           String specification)

Create a new left Join that belongs to a FROM clause

Parameters:

name - name of the table to be joined

specification - join conditions

Returns:

parent FROM clause

rightJoin

public FromClause rightJoin(String name,
                            String specification)

Create a new right Join that belongs to a FROM clause

Parameters:

name - name of the table to be joined

specification - join conditions

Returns:

parent FROM clause

fullJoin

public FromClause fullJoin(String name,
                           String specification)

Create a new full Join that belongs to a FROM clause

Parameters:

name - name of the table to be joined

specification - join conditions

Returns:

parent FROM clause

leftOuterJoin

public FromClause leftOuterJoin(String name,
                                String specification)

Create a new left outer Join that belongs to a FROM clause

Parameters:

name - name of the table to be joined

specification - join conditions

Returns:

parent FROM clause

rightOuterJoin

public FromClause rightOuterJoin(String name,
                                 String specification)

Create a new right outer Join that belongs to a FROM clause

Parameters:

name - name of the table to be joined

specification - join conditions

Returns:

parent FROM clause

fullOuterJoin

public FromClause fullOuterJoin(String name,
                                String specification)

Create a new full outer Join that belongs to a FROM clause

Parameters:

name - name of the table to be joined

specification - join conditions

Returns:

parent FROM clause

accept

public void accept(SelectVisitor visitor)

Description copied from interface: SelectFragment

Accept a visitor (e.g. a renderer or validator)

Specified by:

accept in interface SelectFragment

Parameters:

visitor - visitor to accept