Package edu.harvard.seas.pl.abcdatalog.ast

Class Variable

java.lang.Object

edu.harvard.seas.pl.abcdatalog.ast.Variable

All Implemented Interfaces:

Term

public class Variable
extends Object
implements Term

A Datalog variable.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Variable(String name)	Constructs a variable from an identifier.

Method Summary

Modifier and Type	Method	Description
<I, O> O	accept(TermVisitor<I,O> visitor, I state)
Term	applySubst(Substitution subst)
static Variable	create(String name)	Returns a variable with the given string identifier.
static Variable	createFreshVariable()
String	getName()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

Variable

protected Variable(String name)

Constructs a variable from an identifier.

Parameters:

name - identifier

Method Details

create

public static Variable create(String name)

Returns a variable with the given string identifier.

Parameters:

name - the string identifier

Returns:

the variable

getName

public String getName()

toString

public String toString()

Overrides:

toString in class Object

accept

public <I,
O> O accept(TermVisitor<I,O> visitor,
 I state)

Specified by:

accept in interface Term

createFreshVariable

public static Variable createFreshVariable()

applySubst

public Term applySubst(Substitution subst)

Specified by:

applySubst in interface Term