ru.curs.celesta.score

Class FieldRef

java.lang.Object

ru.curs.celesta.score.Expr

ru.curs.celesta.score.FieldRef

public final class FieldRef
extends Expr

Reference to a table column.

Constructor Summary

Constructors

Constructor and Description
FieldRef(String tableNameOrAlias, String columnName)

Method Summary

Modifier and Type	Method and Description
void	accept(ExprVisitor visitor) Accepts a visitor during a traversal of the parse tree for solving tasks of types validation, code generation etc.
Column<?>	getColumn() Returns the column that the reference is pointing to.
String	getColumnName() Returns column name.
ViewColumnMeta<?>	getMeta() Returns the expression type.
String	getTableNameOrAlias() Returns table name or alias.

Methods inherited from class ru.curs.celesta.score.Expr

getCSQL, getSQL, resolveFieldRefs

Methods inherited from class java.lang.Object

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

Constructor Detail

FieldRef

public FieldRef(String tableNameOrAlias,
                String columnName)
         throws ParseException

Throws:

ParseException

Method Detail

getTableNameOrAlias

public String getTableNameOrAlias()

Returns table name or alias.

Returns:

getColumnName

public String getColumnName()

Returns column name.

Returns:

getMeta

public ViewColumnMeta<?> getMeta()

Description copied from class: Expr

Returns the expression type.

Specified by:

getMeta in class Expr

Returns:

getColumn

public Column<?> getColumn()

Returns the column that the reference is pointing to.

Returns:

accept

public void accept(ExprVisitor visitor)
            throws ParseException

Description copied from class: Expr

Accepts a visitor during a traversal of the parse tree for solving tasks of types validation, code generation etc.

Parameters:

visitor - universal visitor element performing tasks with the parse tree.

Throws:

ParseException - semantic error during the tree traversal