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Class Expressions.Operator 

java.lang.Object
   |
   +----Expressions.Operator
public class Operator
extends Object
implements Expression
class Operator is used to represent all the binary operators. It takes the text of the operator, like "+" and two inputs.

Constructor Index

o Operator(String, Expression, Expression)

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 Operator 
 public Operator(String op,
                 Expression l,
                 Expression r)

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)
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)

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