All Packages  Class Hierarchy  This Package  Previous  Next  Index

Class Expressions.Selection 

java.lang.Object
   |
   +----Expressions.Selection
public class Selection
extends Object
implements Expression
class Selection is used to represent expression like emp.salary

Constructor Index

o Selection(String, String)
o Selection(String, String, TypeDesc)

Method Index

o collect(Vector, Vector)
o createExec(Vector[])
o equals(Object)
o exclusive(Vector)
o getType()
o printTypes()
o toString()
o typeCheck(SymbolTable)

Constructors

o Selection 
 public Selection(String alias,
                  String attribute)
o Selection 
 public Selection(String alias,
                  String attribute,
                  TypeDesc type)

Methods

o equals 
 public boolean equals(Object obj)
Overrides:
equals in class Object
o toString 
 public String toString()
Overrides:
toString in class Object
o printTypes 
 public String printTypes()
o getType 
 public TypeDesc getType()
o typeCheck 
 public Expression typeCheck(SymbolTable st) throws RuntimeException
o createExec 
 public ExecExpr createExec(Vector projLists[]) throws InternalError
o exclusive 
 public boolean exclusive(Vector aliases)
o collect 
 public void collect(Vector aliases,
                     Vector expressions)

All Packages  Class Hierarchy  This Package  Previous  Next  Index