net.sf.jga.parser
Class UnaryFunctorRef<T,R>

java.lang.Object
  net.sf.jga.parser.UnaryFunctorRef<T,R>

All Implemented Interfaces:

FunctorRef<R,UnaryFunctor<T,R>>

public class UnaryFunctorRef<T,R>
extends java.lang.Object
implements FunctorRef<R,UnaryFunctor<T,R>>

Contains and describes a UnaryFunctor being built by the functor parser.

Copyright © 2004-2005 David A. Hall

Author:

David A. Hall

Constructor Summary

UnaryFunctorRef(UnaryFunctor<T,R> uf, java.lang.Class<T> argType, java.lang.String name, java.lang.Class<R> returnType)

Method Summary

java.lang.String	getArgName(int i) returns the name of the i'th argument to the current functor, as described in the expression being parsed.
java.lang.Class<?>	getArgType(int i) returns the type of the i'th argument to the current functor.
UnaryFunctor<T,R>	getFunctor() Returns the functor to which this refers.
int	getNumberArgs() returns the number of arguments that the current functor requires.
java.lang.Class<R>	getReturnType() returns the type of objects that the current functor returns.
boolean	isConstant() Returns TRUE if the underlying functor is a constant generator
boolean	isIdentity() Returns TRUE if the underlying functor is a unary identity
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

UnaryFunctorRef

public UnaryFunctorRef(UnaryFunctor<T,R> uf,
                       java.lang.Class<T> argType,
                       java.lang.String name,
                       java.lang.Class<R> returnType)

Method Detail

getFunctor

public UnaryFunctor<T,R> getFunctor()

Description copied from interface: FunctorRef

Returns the functor to which this refers.

Specified by:

getFunctor in interface FunctorRef<R,UnaryFunctor<T,R>>

getReturnType

public java.lang.Class<R> getReturnType()

Description copied from interface: FunctorRef

returns the type of objects that the current functor returns.

Specified by:

getReturnType in interface FunctorRef<R,UnaryFunctor<T,R>>

getNumberArgs

public int getNumberArgs()

Description copied from interface: FunctorRef

returns the number of arguments that the current functor requires. Currently, the implementations tend to be hard coded.

Specified by:

getNumberArgs in interface FunctorRef<R,UnaryFunctor<T,R>>

getArgType

public java.lang.Class<?> getArgType(int i)

Description copied from interface: FunctorRef

returns the type of the i'th argument to the current functor.

Specified by:

getArgType in interface FunctorRef<R,UnaryFunctor<T,R>>

getArgName

public java.lang.String getArgName(int i)

Description copied from interface: FunctorRef

returns the name of the i'th argument to the current functor, as described in the expression being parsed.

Specified by:

getArgName in interface FunctorRef<R,UnaryFunctor<T,R>>

isConstant

public boolean isConstant()

Description copied from interface: FunctorRef

Returns TRUE if the underlying functor is a constant generator

Specified by:

isConstant in interface FunctorRef<R,UnaryFunctor<T,R>>

isIdentity

public boolean isIdentity()

Description copied from interface: FunctorRef

Returns TRUE if the underlying functor is a unary identity

Specified by:

isIdentity in interface FunctorRef<R,UnaryFunctor<T,R>>

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object